Quick-replaceable ferrograph magnetic head structure

Abstract

The utility model discloses a ferrograph magnetic head structure capable of being quickly replaced, which comprises a magnetic head shell, a pole shoe arranged on the side inner wall of the magnetic head shell, a permanent magnet fixedly connected to the lower surface of the pole shoe, a magnetic conductive bushing fixedly connected to the side surface of the permanent magnet, and a magnetic conductive jacket fixedly connected to the side surface of the magnetic conductive bushing. The side inner wall of the magnetic head shell is slidably connected with a clamping block, the clamping block is fixedly connected with a sliding groove block through a connecting rod, the side inner wall of the sliding groove block is slidably connected with a sliding rod, the end, away from the sliding groove block, of the sliding rod is fixedly connected with a connecting rod, and the side surface of the connecting rod is in threaded connection with a threaded cylinder. The side surface of the threaded cylinder is fixedly connected with a rotating block. By means of the components, the rotating block is rotated to enable the connecting rod and the sliding rod to drive the sliding groove block and the clamping block to be contained in the magnetic head shell, the component connected with the magnetic head can be inserted into the magnetic head shell, the rotating block is reversely rotated, the connecting component and the magnetic head shell are fixed through the clamping block, fixing is firm, and operation is easy and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to ferrography magnetic head technical field, especially in kind quick replacement's ferrography magnetic head structure. BACKGROUND

[0002] The existing ferrography magnetic head structure is all through installing permanent magnet in the magnetic head, and is used for adjusting the intensity of magnetic field through changing the current of electromagnetic coil, makes the magnetic head have the effect of controlling the magnetic field, but can not carry out quick installation and dismounting to the magnetic head, such as the ferrography magnetic head device of adjustable magnetic field disclosed in Chinese patent, its application number is CN202323550915.3, although the magnetic field generating part uses permanent magnet to produce magnetic field, has strong controllability, high flexibility, simple structure, compared with permanent magnet, cost is lower, energy consumption optimization and so on, and through changing the current of electromagnetic coil, can adjust the intensity of magnetic field, makes this ferrography magnetic head device can reach the effect of adjustable magnetic field, but does not set up fixing component on the magnetic head, leads to the magnetic head fixed on the magnetic head connecting component and can not be quickly dismounted and replaced, is not favorable to the maintenance of ferrography, and use has limitation. UTILITY MODEL CONTENTS

[0003] The utility model discloses the purpose is in at least one of the technical problems existing in prior art, provide a kind of quick replacement's ferrography magnetic head structure, by using the insertion of clamping block and the inside of magnetic head connecting component, make connection can be fixed together with magnetic head, and by rotating the rotating block outside the magnetic head shell through the mode of screw tube driving connecting rod movement, make connecting rod can slide by slide bar driving sliding groove block, make sliding groove block can pull clamping block into the inside of magnetic head shell and release the fixed state of connecting component, so that the magnetic head can be quickly removed and replaced, and after installation, by spring driving clamping block, make clamping block and connecting part fixed firmly, facilitate the use of magnetic head.

[0004] The utility model discloses still provide with above-mentioned one kind quick replacement's ferrography magnetic head structure, include: magnetic head shell, the side inner wall of magnetic head shell is provided with pole shoe, the lower surface of pole shoe is fixedly connected with permanent magnet, the side surface of permanent magnet is fixedly connected with magnetism inlay, the side surface of magnetism inlay is fixedly connected with magnetism outer cover, the lower surface of magnetism inlay is fixedly connected with magnetism baseplate;

[0005] The side inner wall of the magnetic head shell is slidably connected with a clamping block, the clamping block is fixedly connected with a sliding groove block through a connecting rod, the side inner wall of the sliding groove block is slidably connected with a sliding rod, one end of the sliding rod away from the sliding groove block is fixedly connected with a connecting rod, the side surface of the connecting rod is threadedly connected with a threaded cylinder, and the side surface of the threaded cylinder is fixedly connected with a rotating block. Through the above components, the connecting component connected with the magnetic head can be inserted into the inside of the magnetic head shell by rotating the rotating block to drive the sliding groove block and the clamping block into the magnetic head shell through the connecting rod and the sliding rod, and the connecting component and the magnetic head shell can be fixed by reversely rotating the rotating block and using the clamping block, which is firm in fixation, simple in operation and fast in replacement.

[0006] The utility model discloses a kind of quick replacement ferrography magnetic head structures, the pole piece includes center pole piece, the side surface of the center pole piece is fixedly connected with magnetic conducting sleeve one, the side surface of the magnetic conducting sleeve one is fixedly connected with pole piece one, the side surface of the pole piece one is fixedly connected with magnetic conducting sleeve two, the side surface of the magnetic conducting sleeve two is fixedly connected with pole piece two. Pole piece is composed of center pole piece, pole piece one and pole piece two, and is separated by magnetic conducting sleeve one and magnetic conducting sleeve two.

[0007] The utility model discloses a kind of quick replacement ferrography magnetic head structures, the side surface of the pole piece two is fixedly connected with magnetic head shell, and the upper surface of the permanent magnet is fixedly connected with center pole piece. Make the magnetic pole of permanent magnet can be close to work surface, make magnetic head work surface have stronger magnetic field.

[0008] The utility model discloses a kind of quick replacement ferrography magnetic head structures, the side surface of the clamping block is fixedly connected with spring, and the one end of the spring away from clamping block is fixedly connected with magnetic head shell. It can be fixed when using the elastic force of spring to enhance the fixed effect of clamping block.

[0009] The utility model discloses a kind of quick replacement ferrography magnetic head structures, the clamping block has two and is symmetrically distributed, and the center pole piece is located between two clamping blocks. There are two groups of clamping blocks, and magnetic head and magnetic head connecting component are fixedly connected from two directions.

[0010] The utility model discloses a kind of quick replacement ferrography magnetic head structures, the side surface of the sliding groove block is slidably connected with magnetic head shell, and the side surface of the connecting rod is slidably connected with magnetic head shell. Sliding groove block is driven to slide using the mode of connecting rod driving sliding rod to slide.

[0011] The utility model discloses a kind of quick replacement ferrography magnetic head structures, the side surface of the threaded cylinder is rotatably connected with magnetic head shell, and the side surface of the rotating block is rotatably connected with magnetic head shell. Rotating block drives threaded cylinder to rotate, for driving connecting rod to move.

[0012] The utility model discloses a quick replacement's ferrograph magnetic head structure, the side surface fixed connection of threaded cylinder is limit ring, the side surface rotation is connected with the magnetic head shell of limit ring. Advantages

[0013] Compared with prior art, by using the card block insertion and the inside of magnetic head connecting part, the connection can be fixed with the magnetic head, and by rotating the rotating block outside the magnetic head shell, the connecting rod is moved through the threaded cylinder, the connecting rod can be slid through the sliding rod, the sliding groove block can be pulled into the magnetic head shell and the fixed state of the connecting part is released, the magnetic head can be quickly removed and replaced, and after installation, the card block is pushed by the spring, and the card block is fixed with the connecting part, which is convenient for the use of the magnetic head. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further explained in connection with the drawings and examples;

[0015] Figure 1 It is the overall structural drawing of quick replacement's ferrograph magnetic head structure of the utility model;

[0016] Figure 2 It is the sectional structure drawing of quick replacement's ferrograph magnetic head structure of the utility model;

[0017] Figure 3 It is the card block and sliding groove block structure drawing of quick replacement's ferrograph magnetic head structure of the utility model;

[0018] Figure 4 It is the threaded cylinder and connecting rod structure drawing of quick replacement's ferrograph magnetic head structure of the utility model.

[0019] Legend:

[0020] 1, the magnetic head shell, 2, the rotating block, 3, the pole shoe, 4, the center pole shoe, 5, the pole shoe one, 6, the pole shoe two, 7, the magnetic sleeve one, 8, the magnetic sleeve two, 9, the permanent magnet, 10, the magnetic insert sleeve, 11, the magnetic outer sleeve, 12, the magnetic base, 13, the card block, 14, the sliding groove block, 15, the connecting rod, 16, the spring, 17, the sliding rod, 18, the connecting rod, 19, the limit ring, 20, the threaded cylinder. DETAILED DESCRIPTION

[0021] This part will describe the specific embodiment of the utility model in detail, and the preferred embodiment of the utility model is shown in the drawings, and the drawings are used to supplement the description of the text part in the form of graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0022] Referring to Figures 1-4 The utility model discloses an iron spectrum appearance magnetic head structure of quick replacement, it includes: magnetic head shell 1, the inside wall of magnetic head shell 1 is provided with pole piece 3, the lower surface of pole piece 3 is fixedly connected with permanent magnet 9, the upper surface of permanent magnet 9 is fixedly connected with center pole piece 4, the lateral surface of permanent magnet 9 is fixedly connected with magnetism guide insert sleeve 10, the lateral surface of magnetism guide insert sleeve 10 is fixedly connected with magnetism guide outer sleeve 11, the lower surface of magnetism guide insert sleeve 10 is fixedly connected with magnetism guide base 12;

[0023] Specifically, permanent magnet 9 generates a magnetic field, and pole piece 3 enhances the effect of the magnetic field, so that higher sensitivity is obtained, magnetism guide outer sleeve 11 is made of high magnetic permeability material, magnetism guide base 12 and magnetism guide insert sleeve 10 are made of magnetic isolation material copper, and the beam magnetic function of the magnetic head is enhanced by using different materials, so that the magnetic field strength is increased.

[0024] The inside wall of magnetic head shell 1 is slidably connected with clamping block 13, clamping block 13 is symmetrically distributed and has two, center pole piece 4 is located between the two clamping blocks 13, clamping block 13 is fixedly connected with sliding groove block 14 through connecting rod 15, the lateral surface of sliding groove block 14 is slidably connected with magnetic head shell 1, the inside wall of sliding groove block 14 is slidably connected with sliding rod 17, one end of sliding rod 17 away from sliding groove block 14 is fixedly connected with connecting rod 18, the lateral surface of connecting rod 18 is slidably connected with magnetic head shell 1, the lateral surface of connecting rod 18 is threadedly connected with threaded cylinder 20, the lateral surface of threaded cylinder 20 is rotatably connected with magnetic head shell 1, the lateral surface of threaded cylinder 20 is fixedly connected with rotating block 2, and the lateral surface of rotating block 2 is rotatably connected with magnetic head shell 1.

[0025] Specifically, when in use, rotating block 2 is rotated, so that rotating block 2 drives connecting rod 18 to slide in magnetic head shell 1 through threaded cylinder 20, connecting rod 18 pulls sliding rod 17, sliding rod 17 drives sliding groove block 14 to slide in the direction perpendicular to connecting rod 18, and clamping block 13 is driven into the inside of magnetic head shell 1 through connecting rod 15, so that the magnetic head connecting component can be inserted into the magnetic head or the connection between the magnetic head connecting component and the magnetic head is released.

[0026] Pole piece 3 includes center pole piece 4, the lateral surface of center pole piece 4 is fixedly connected with magnetism guide sleeve one 7, the lateral surface of magnetism guide sleeve one 7 is fixedly connected with pole one 5, the lateral surface of pole one 5 is fixedly connected with magnetism guide sleeve two 8, the lateral surface of magnetism guide sleeve two 8 is fixedly connected with pole two 6, and the lateral surface of pole two 6 is fixedly connected with magnetic head shell 1.

[0027] Specifically, the center pole shoe 4, the pole shoe one 5, the pole shoe two 6 and the magnetic conducting sleeve 11 adopt high magnetic permeability materials, such as silicon steel or nickel-iron alloy; the magnetic conducting sleeve one 7, the magnetic conducting sleeve two 8, the magnetic conducting base 12 and the magnetic conducting insert 10 adopt magnetic isolation material copper, and the magnetic head shell 1 adopts magnetic isolation material aluminum, so that the magnetic field generated by the permanent magnet 9 forms a magnetic field with a rectangular cross section in the magnetic head.

[0028] The side surface of the clamping block 13 is fixedly connected with a spring 16, one end of the spring 16 away from the clamping block 13 is fixedly connected with the magnetic head shell 1, the side surface of the threaded cylinder 20 is fixedly connected with a limiting ring 19, and the side surface of the limiting ring 19 is rotatably connected with the magnetic head shell 1.

[0029] Specifically, the spring 16 is used to push the clamping block 13 into the magnetic head fixing part to fix the magnetic head fixing part and the magnetic head firmly, and the spring 16 is used to eliminate the gap between the fixing part and the magnetic head, so that the fixing effect is improved, and the limiting ring 19 is arranged outside the threaded cylinder 20, so that the threaded cylinder 20 cannot be separated from the magnetic head shell 1 during rotation.

[0030] Working principle: when in use, the rotating block 2 is rotated to drive the connecting rod 18 to slide in the magnetic head shell 1 through the threaded cylinder 20, and the connecting rod 18 pulls the sliding rod 17 to drive the sliding groove block 14 to slide along a direction perpendicular to the connecting rod 18 through the connecting rod 15, and the clamping block 13 is driven to enter the inside of the magnetic head shell 1, so that the magnetic head connecting part can be inserted into the magnetic head, and after the glass substrate is placed, the clamping block 13 can be inserted into the connecting part by reversing the rotating block 2 to fix the magnetic head, then the glass substrate is placed on the magnetic head, and oil sample is dropped on the glass substrate, a magnetic field is generated by the permanent magnet 9 and the magnetic conducting base 12, and the magnetic field is enhanced by the pole shoe 3, and ferromagnetic substances are retained on the substrate under the action of the magnetic field force and are arranged along the magnetic force line direction to form an iron spectrum piece, and when the magnetic head needs to be replaced, the rotating block 2 is rotated again to release the fixing state of the magnetic head and the connecting part, so that the magnetic head can be removed and replaced.

[0031] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A quick-change ferrography head structure, characterized in that, include: A magnetic head housing (1) is provided with a pole shoe (3) on the inner side wall of the magnetic head housing (1). A permanent magnet (9) is fixedly connected to the lower surface of the pole shoe (3). A magnetic guide sleeve (10) is fixedly connected to the side surface of the permanent magnet (9). A magnetic guide sleeve (11) is fixedly connected to the side surface of the magnetic guide sleeve (10). A magnetic guide base (12) is fixedly connected to the lower surface of the magnetic guide sleeve (10). The inner side wall of the magnetic head housing (1) is slidably connected to a locking block (13), the locking block (13) is fixedly connected to a sliding block (14) via a connecting rod (15), the inner side wall of the sliding block (14) is slidably connected to a sliding rod (17), the end of the sliding rod (17) away from the sliding block (14) is fixedly connected to a connecting rod (18), the side surface of the connecting rod (18) is threadedly connected to a threaded cylinder (20), and the side surface of the threaded cylinder (20) is fixedly connected to a rotating block (2).

2. The quick-change ferrography head structure according to claim 1, characterized in that, The pole shoe (3) includes a central pole shoe (4), a magnetic sleeve (7) is fixedly connected to the side surface of the central pole shoe (4), a pole shoe (5) is fixedly connected to the side surface of the magnetic sleeve (7), a magnetic sleeve (8) is fixedly connected to the side surface of the pole shoe (5), and a pole shoe (6) is fixedly connected to the side surface of the magnetic sleeve (8).

3. The quick-change ferrography head structure according to claim 2, characterized in that, The side surface of the second pole shoe (6) is fixedly connected to the magnetic head housing (1), and the upper surface of the permanent magnet (9) is fixedly connected to the center pole shoe (4).

4. The quick-change ferrography head structure according to claim 1, characterized in that, A spring (16) is fixedly connected to the side surface of the card block (13), and the end of the spring (16) away from the card block (13) is fixedly connected to the magnetic head housing (1).

5. The quick-change ferrography head structure according to claim 2, characterized in that, There are two card blocks (13) that are symmetrically distributed, and the central pole shoe (4) is located between the two card blocks (13).

6. The quick-change ferrography head structure according to claim 1, characterized in that, The side surface of the slide block (14) is slidably connected to the magnetic head housing (1), and the side surface of the connecting rod (18) is slidably connected to the magnetic head housing (1).

7. The quick-change ferrography head structure according to claim 1, characterized in that, The side surface of the threaded cylinder (20) is rotatably connected to the magnetic head housing (1), and the side surface of the rotating block (2) is rotatably connected to the magnetic head housing (1).

8. The quick-change ferrography head structure according to claim 1, characterized in that, A limiting ring (19) is fixedly connected to the side surface of the threaded cylinder (20), and the side surface of the limiting ring (19) is rotatably connected to the magnetic head housing (1).

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