Magnetic material sample pretreatment crushing device

Abstract

The utility model discloses a magnetic material sample pretreatment crushing device which comprises a crushing mechanism, the crushing mechanism comprises a crushing box body, two crushing rollers are rotatably connected in the crushing box body, a plurality of arc-shaped plates are axially arranged in inner cavities of the crushing rollers at equal intervals, and a plurality of crushing teeth are fixedly connected to the outer side surfaces of the arc-shaped plates at equal intervals in the axis direction; a contraction and expansion mechanism is mounted in an inner cavity of the crushing roller; and the screening mechanism comprises a screening box body, a discharging opening is formed in the bottom of the crushing box body, a screening assembly is installed at the top of the screening box body, a recycling box is installed at the bottom in the screening box body, two sets of driving motors are fixedly connected to the outer wall of the crushing box body, and the two sets of driving motors are in transmission fit with the two sets of crushing rollers correspondingly. According to the device, a sample can be prevented from splashing and missing, and the extension length of the crushing teeth can be controlled through the arrangement of the contraction and expansion assembly, so that the particle size of a crushed material is controlled, the application range of the device is widened, and the uniformity of final detection sampling and the accuracy of a detection result are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic material sample detection, in particular to a magnetic material sample pre-processing and crushing device. Background Art

[0002] Materials that can respond to magnetic fields in some way are called magnetic materials. According to the strength of the magnetism they exhibit in an external magnetic field, they can be divided into diamagnetic materials, paramagnetic materials, ferromagnetic materials, antiferromagnetic materials and ferrimagnetic materials. Most materials are diamagnetic or paramagnetic, and they react weakly to external magnetic fields. Ferromagnetic and ferrimagnetic materials are strongly magnetic materials. The magnetic materials usually referred to refer to strongly magnetic materials. In the process of detecting the composition of magnetic materials, they need to be crushed and sampled before processing. The quality of sampling directly affects the accuracy of the composition detection results.

[0003] The prior art is to randomly sample after smashing the sample with a hammer on the steel plate plane. Magnetic materials are fragile samples. During the smashing process, the samples will inevitably splash everywhere, which is not only dangerous, but also causes sample loss and cannot achieve overall uniformity. The crushing device in the prior art cannot control the particle size of the magnetic material after crushing, and the uniformity is not enough. Therefore, the utility model provides a magnetic material sample pre-treatment crushing device, which can prevent sample splashing, avoid loss, and improve the uniformity of the final detection sampling and the accuracy of the detection results. Utility Model Content

[0004] The utility model aims to provide a magnetic material sample pre-treatment crushing device to solve the problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following solution: The utility model provides a magnetic material sample pre-treatment crushing device, comprising:

[0006] A crushing mechanism, wherein the crushing mechanism comprises a crushing box, wherein two crushing rollers are rotatably connected in the crushing box, wherein the two crushing rollers are arranged correspondingly, wherein a plurality of arc-shaped plates are arranged axially and at equal intervals in the inner cavity of the crushing roller, wherein a plurality of crushing teeth are fixedly connected equidistantly along the axial direction on the outer surface of the arc-shaped plates, wherein the crushing teeth extend through the side surface of the crushing roller and extend out of the inner cavity of the crushing roller, wherein a contraction and expansion mechanism is installed in the inner cavity of the crushing roller, wherein the arc-shaped plates are slidably matched with the contraction and expansion mechanism, and wherein the contraction and expansion mechanism is used to push the arc-shaped plates to slide along the diameter direction of the crushing roller;

[0007] The screening mechanism comprises a screening box, the screening box is fixedly connected to the bottom of the crushing box, a discharge port is provided at the bottom of the crushing box, the discharge port is communicated with the screening box, a screening assembly is installed on the top of the screening box, the screening assembly is arranged correspondingly to the discharge port, a recovery box is installed at the bottom of the screening box, the recovery box is arranged correspondingly to the screening assembly, two groups of driving motors are fixedly connected to the outer wall of the crushing box, and the two groups of driving motors are respectively matched with the two groups of crushing rollers;

[0008] The side surface of the screening box is arranged to be open, and a box door is hinged at the open portion, and a feed port is arranged on the top surface of the crushing box.

[0009] According to the magnetic material sample pretreatment crushing device provided by the utility model, the retracting and expanding mechanism includes two push blocks arranged opposite to each other, the push blocks are of a frustum-shaped structure, the push blocks are coaxially arranged with the crushing roller, a sliding assembly is installed on the inner wall of the crushing roller, the push blocks are slidably matched with the inner wall of the crushing roller through the sliding assembly, a bidirectional telescopic rod is arranged between the two push blocks, the bidirectional telescopic rod is fixedly connected with the inner wall of the crushing roller through a fixed rod, and the two ends of the arc plate are respectively slidably clamped on the inclined surfaces of the push blocks;

[0010] The end of the push block with a smaller diameter is fixedly connected to the output end of the bidirectional telescopic rod, a long hole is provided on the arc plate, and the fixing rod passes through the long hole and is fixedly connected to the inner wall of the crushing roller.

[0011] According to the magnetic material sample pretreatment crushing device provided by the utility model, the sliding assembly is arranged in a plurality of groups at equal intervals in the circumferential direction of the inner walls at both ends of the crushing roller, the sliding assembly includes a sliding rod fixedly connected to the inner walls at both ends of the crushing roller, a sliding hole is opened on the end face of the push block, the axis of the sliding hole and the axis of the push block are located on the same horizontal plane, the sliding rod is slidably connected in the sliding hole, a spring is fixedly connected in the sliding hole, and one end of the spring is fixedly connected to the end of the sliding rod.

[0012] According to the magnetic material sample pretreatment crushing device provided by the utility model, a slide groove is opened on the side of the push block along the generatrix direction, the cross-sectional shape of the slide groove is T-shaped, and sliders are fixedly connected to both ends of the arc plate, and the sliders are slidably engaged in the slide groove.

[0013] According to the magnetic material sample pretreatment crushing device provided by the utility model, the screening component includes a mounting frame, the mounting frame is fixedly connected to the inner wall of the screening box through a support rod, an angle is set between the mounting frame and the horizontal plane, and the mounting frame is located between the recovery box and the crushing box, a screen is detachably connected to the mounting frame, the screen is arranged corresponding to the discharge port, and a vibration motor is installed on the mounting frame.

[0014] According to the magnetic material sample pretreatment crushing device provided by the utility model, a protective frame is installed on the top surface of the mounting frame, a discharge port is opened on a side of the protective frame close to the box door, and a closing plate is installed on the discharge port.

[0015] According to the magnetic material sample pre-treatment crushing device provided by the utility model, the side wall of the crushing roller is provided with a plurality of through holes in an array at equal intervals, and the crushing teeth pass through the through holes and extend out of the crushing roller.

[0016] According to the magnetic material sample pretreatment crushing device provided by the utility model, the two opposite side surfaces of the crushing box are arranged as arc surfaces, the arc surfaces are arranged corresponding to the crushing rollers, and a gap is arranged between the arc surfaces and the crushing rollers.

[0017] The utility model discloses the following technical effects:

[0018] When the utility model is used, magnetic material is added into the crushing box through the feed port, the arc plate is controlled to extend or retract through the expansion and contraction mechanism to control the extension or retraction of the crushing teeth, so as to control the particle size of the crushed magnetic material, the crushing roller is controlled to rotate by the driving motor, and the two crushing rollers rotate relatively, so as to realize the crushing of the magnetic material, and the magnetic material enters the screening box through the discharge port at the bottom after being crushed, and enters the recovery box after being screened by the screening assembly in the screening box, and when the material in the recovery box reaches a certain amount, the box door is opened to take out the recovery box.

[0019] The utility model can control the extension length of the crushing teeth through the arrangement of the retracting and expanding components, thereby controlling the particle size of the crushed material, while avoiding the splashing of the material and improving the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1This is a schematic diagram of the structure of the magnetic material sample pre-treatment crushing device of the utility model;

[0022] Figure 2 This is a broken view of the crushing roller of the utility model;

[0023] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0024] Figure 4 It is a schematic diagram of the matching relationship between the push block and the arc plate of the utility model.

[0025] Among them, 1. Crushing box; 2. Crushing roller; 3. Arc plate; 4. Crushing teeth; 5. Screening box; 6. Discharge port; 7. Recovery box; 8. Box door; 9. Feed port; 10. Push block; 11. Two-way telescopic rod; 12. Fixed rod; 13. Sliding rod; 14. Sliding hole; 15. Spring; 16. Sliding block; 17. Mounting frame; 18. Support rod; 19. Screen; 20. Vibration motor; 21. Protective frame; 22. Closing plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] Reference Figure 1-4 The utility model provides a magnetic material sample pre-treatment crushing device, comprising:

[0029] The crushing mechanism includes a crushing box 1, two crushing rollers 2 are rotatably connected in the crushing box 1, and the two crushing rollers 2 are arranged correspondingly. A plurality of arc plates 3 are arranged at equal intervals in the axial direction of the inner cavity of the crushing roller 2, and a plurality of crushing teeth 4 are fixedly connected to the outer surface of the arc plate 3 at equal intervals along the axial direction. The crushing teeth 4 pass through the side of the crushing roller 2 and extend out of the inner cavity of the crushing roller 2. A retracting and expanding mechanism is installed in the inner cavity of the crushing roller 2. The arc plate 3 and the retracting and expanding mechanism are slidably matched. The retracting and expanding mechanism is used to push the arc plate 3 to slide along the diameter direction of the crushing roller 2. Two sets of driving motors are fixedly connected to the outer wall of the crushing box 1, and the two sets of driving motors are respectively matched with the two sets of crushing rollers 2 for transmission;

[0030] The screening mechanism includes a screening box 5, which is fixedly connected to the bottom of the crushing box 1. A discharge port 6 is provided at the bottom of the crushing box 1, and the discharge port 6 is connected to the screening box 5. A screening component is installed on the top of the screening box 5, and the screening component is arranged corresponding to the discharge port 6. A recovery box 7 is installed at the bottom of the screening box 5, and the recovery box 7 is arranged corresponding to the screening component.

[0031] The side of the screening box 5 is arranged to be open, and a box door 8 is hinged at the open part, and a feed port 9 is provided on the top surface of the crushing box 1 .

[0032] When the utility model is used, magnetic material is added into the crushing box 1 through the feed port 9, the arc plate 3 is controlled to extend or retract through the expansion mechanism to control the extension or retraction of the crushing teeth 4, so as to control the particle size of the crushed magnetic material, and the crushing roller 2 is controlled to rotate by the driving motor, and the two crushing rollers 2 rotate relative to each other, so as to realize the crushing of the magnetic material. After the magnetic material is crushed, it enters the screening box 5 through the discharge port 6 at the bottom, and after being screened by the screening assembly in the screening box 5, it enters the recovery box 7. When the material in the recovery box 7 reaches a certain amount, the box door 8 is opened to take out the recovery box 7.

[0033] The utility model can control the extension length of the crushing teeth 4 by setting the expansion and contraction components, thereby controlling the particle size of the crushed material, while avoiding material splashing and improving the application range of the device.

[0034] Further optimized solution, the expansion mechanism includes two push blocks 10 arranged opposite to each other, the push blocks 10 are of a frustum-shaped structure, the push blocks 10 and the crushing roller 2 are coaxially arranged, a sliding assembly is installed on the inner wall of the crushing roller 2, the push blocks 10 slide with the inner wall of the crushing roller 2 through the sliding assembly, a bidirectional telescopic rod 11 is arranged between the two push blocks 10, the bidirectional telescopic rod 11 is fixedly connected to the inner wall of the crushing roller 2 through a fixed rod 12, and the two ends of the arc plate 3 are respectively slidably clamped on the inclined surface of the push block 10;

[0035] The end of the push block 10 with a smaller diameter is fixedly connected to the output end of the bidirectional telescopic rod 11 , a long hole for making way is provided on the arc plate 3 , and the fixing rod 12 passes through the long hole for making way and is fixedly connected to the inner wall of the crushing roller 2 .

[0036] A further optimized solution is that a plurality of sliding assemblies are arranged at equal intervals in the circumferential direction of the inner walls at both ends of the crushing roller 2, and the sliding assemblies include a sliding rod 13 fixedly connected to the inner walls at both ends of the crushing roller 2, a sliding hole 14 is opened on the end face of the push block 10, and the axis of the sliding hole 14 and the axis of the push block 10 are located on the same horizontal plane, the sliding rod 13 is slidably connected in the sliding hole 14, and a spring 15 is fixedly connected in the sliding hole 14, and one end of the spring 15 is fixedly connected to the end of the sliding rod 13.

[0037] Further optimization scheme, the side of the push block 10 is provided with a slide groove along the direction of the busbar, and the cross-sectional shape of the slide groove is T-shaped. The two ends of the arc plate 3 are respectively fixedly connected with sliders 16, and the sliders 16 are slidably engaged in the slide groove. The cooperation between the push block 10 and the arc plate 3 is achieved by the cooperation of the slider 16 and the slide groove. The two push blocks 10 are controlled by the telescopic control of the bidirectional telescopic rod 11 to produce a pushing effect on the arc plate 3. When the push blocks 10 are relatively close, the arc plate 3 expands and pushes the crushing teeth 4 to extend, otherwise it is retracted, and the particle size of the crushed material is controlled by the telescopic movement of the crushing teeth 4. It should be noted that in this embodiment, the devices in contact with the magnetic material need to be coated with an anti-magnetic layer, such as titanium alloy and other materials.

[0038] A further optimized solution is that the screening assembly includes a mounting frame 17, which is fixedly connected to the inner wall of the screening box 5 through a support rod 18, an angle is set between the mounting frame 17 and the horizontal plane, and the mounting frame 17 is located between the recovery box 7 and the crushing box 1, and a screen 19 is detachably connected to the mounting frame 17, and the screen 19 is arranged corresponding to the discharge port 6, and a vibration motor 20 is installed on the mounting frame 17.

[0039] Screening is performed by vibrating the vibration motor 20. Crushed materials that meet the requirements enter the recovery box 7, while those that do not meet the requirements stay on the screen 19 and are cleaned after a certain amount. At the same time, the screen 19 and the mounting frame 17 are relatively detachable, and the mesh size of the screen 19 can be adjusted according to the size of the crushed materials, thereby improving the practicability of the device.

[0040] According to a further optimization scheme, a protective frame 21 is installed on the top surface of the mounting frame 17, a discharge port is provided on a side of the protective frame 21 close to the box door 8, and a closing plate 22 is installed on the discharge port.

[0041] The mounting frame 17 is tilted, and the low point is arranged corresponding to the box door 8, so that the debris that has not passed through the screen 19 can be accumulated on the side of the protective frame 21, and can be cleaned by opening the closing plate 22. The closing plate 22 is connected by hinges and closed by locks for easy opening and closing.

[0042] According to a further optimized solution, a plurality of through holes are arranged in an evenly spaced array on the side wall of the crushing roller 2, and the crushing teeth 4 extend out of the crushing roller 2 through the through holes.

[0043] It should also be noted that after the arc plate 3 contacts the inner wall of the crushing roller 2, the slide bar 13 and the slide hole 14 are still in a sliding fit state, and when the slide bar 13 and the slide hole 14 reach the limit position, the crushing teeth 4 completely enter the through hole. In this way, the extension length of the crushing teeth 4 can be adjusted to control the size of the crushed particles. At the same time, the crushing teeth 4 on the two groups of crushing rollers 2 need to be staggered to avoid motion interference.

[0044] In a further optimized solution, both opposite sides of the crushing box 1 are set as arc surfaces, which are set corresponding to the crushing roller 2, and a gap is set between the arc surface and the crushing roller 2. The setting of the arc surface can increase the contact time between the magnetic material and the crushing roller 2, thereby improving the crushing effect, and at the same time can avoid a large amount of crushed material accumulation at the two corners at the bottom of the crushing box 1, which affects the working efficiency of the device.

[0045] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A magnetic material sample pretreatment crushing device, characterized in that: include: A crushing mechanism, the crushing mechanism comprising a crushing box (1), two crushing rollers (2) are rotatably connected in the crushing box (1), the two crushing rollers (2) are arranged correspondingly, a plurality of arc plates (3) are arranged axially and evenly spaced in the inner cavity of the crushing roller (2), a plurality of crushing teeth (4) are fixedly connected on the outer surface of the arc plate (3) along the axial direction and evenly spaced, the crushing teeth (4) pass through the side of the crushing roller (2) and extend out of the inner cavity of the crushing roller (2), a contraction and expansion mechanism is installed in the inner cavity of the crushing roller (2), the arc plate (3) and the contraction and expansion mechanism are slidably matched, the contraction and expansion mechanism is used to push the arc plate (3) to slide along the diameter direction of the crushing roller (2), and two groups of driving motors are fixedly connected to the outer wall of the crushing box (1), and the two groups of driving motors are respectively matched with the two groups of crushing rollers (2) for transmission; A screening mechanism, the screening mechanism comprising a screening box (5), the screening box (5) being fixedly connected to the bottom of the crushing box (1), the bottom of the crushing box (1) being provided with a discharge port (6), the discharge port (6) being communicated with the screening box (5), a screening component being installed on the top of the screening box (5), the screening component being arranged correspondingly to the discharge port (6), a recovery box (7) being installed on the bottom of the screening box (5), the recovery box (7) being arranged correspondingly to the screening component; The side of the screening box (5) is arranged to be open, and a box door (8) is hinged at the open position, and a feed port (9) is provided on the top surface of the crushing box (1).

2. A magnetic material sample pretreatment crushing device according to claim 1, characterized in that: The retracting and expanding mechanism comprises two push blocks (10) arranged opposite to each other, the push blocks (10) are of a frustum-shaped structure, the push blocks (10) and the crushing roller (2) are coaxially arranged, a sliding assembly is installed on the inner wall of the crushing roller (2), the push blocks (10) are slidably matched with the inner wall of the crushing roller (2) through the sliding assembly, a bidirectional telescopic rod (11) is arranged between the two push blocks (10), the bidirectional telescopic rod (11) is fixedly connected to the inner wall of the crushing roller (2) through a fixing rod (12), and the two ends of the arc plate (3) are respectively slidably clamped on the inclined surfaces of the push blocks (10); The end of the push block (10) with a smaller diameter is fixedly connected to the output end of the bidirectional telescopic rod (11), a long hole for making way is provided on the arc plate (3), and the fixing rod (12) passes through the long hole for making way and is fixedly connected to the inner wall of the crushing roller (2).

3. A magnetic material sample pretreatment crushing device according to claim 2, characterized in that: The sliding assembly is arranged in a plurality of groups at equal intervals in the circumferential direction of the inner wall at both ends of the crushing roller (2). The sliding assembly includes a sliding rod (13) fixedly connected to the inner wall at both ends of the crushing roller (2). The end surface of the push block (10) is provided with a sliding hole (14). The axis of the sliding hole (14) and the axis of the push block (10) are located on the same horizontal plane. The sliding rod (13) is slidably connected in the sliding hole (14). A spring (15) is fixedly connected in the sliding hole (14). One end of the spring (15) is fixedly connected to the end of the sliding rod (13).

4. A magnetic material sample pretreatment crushing device according to claim 2, characterized in that: A slide groove is provided on the side of the push block (10) along the generatrix direction, and the cross-sectional shape of the slide groove is T-shaped. Slide blocks (16) are fixedly connected to both ends of the arc plate (3), and the slide blocks (16) are slidably engaged in the slide groove.

5. The magnetic material sample pretreatment crushing device according to claim 1, characterized in that: The screening assembly comprises a mounting frame (17), the mounting frame (17) being fixedly connected to the inner wall of the screening box (5) via a support rod (18), an angle being set between the mounting frame (17) and a horizontal plane, and the mounting frame (17) being located between the recovery box (7) and the crushing box (1), a screen (19) being detachably connected to the mounting frame (17), the screen (19) being arranged corresponding to the discharge port (6), and a vibration motor (20) being installed on the mounting frame (17).

6. A magnetic material sample pretreatment crushing device according to claim 5, characterized in that: A protective frame (21) is installed on the top surface of the mounting frame (17), a discharge port is provided on a side of the protective frame (21) close to the box door (8), and a closing plate (22) is installed on the discharge port.

7. A magnetic material sample pretreatment and crushing device according to claim 1, characterized in that: The side wall of the crushing roller (2) is provided with a plurality of through holes in an array at equal intervals, and the crushing teeth (4) pass through the through holes and extend out of the crushing roller (2).

8. The magnetic material sample pretreatment and crushing device according to claim 1, characterized in that: The two opposite side surfaces of the crushing box (1) are both arranged as arc surfaces, the arc surfaces are arranged corresponding to the crushing roller (2), and a gap is arranged between the arc surfaces and the crushing roller (2).

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