Adjustable scraping mechanism of magnetic separator

Abstract

The utility model relates to the technical field of magnetic separators, and particularly discloses an adjustable scraping mechanism of a magnetic separator, which comprises a support frame, two rotating shaft seats symmetrically arranged on the support frame, a scraping plate mechanism arranged between the two rotating shaft seats, a counterweight mechanism arranged at the lower part of the scraping plate mechanism, and two swing arms, a roller is rotatably arranged at the front end of each swing arm and is in contact with the magnetic roller, a bracket is detachably arranged on the opposite sides of the two swing arms, a contact scraper is movably arranged on the bracket, an elastic supporting piece is arranged between the rear end of the contact scraper and the bracket, and the elastic supporting piece is detachably arranged on the bracket. The contact scraping plate and the magnetic roller are in a contact state, unnecessary extrusion cannot be caused to the magnetic roller in the using process, excessive abrasion cannot be caused, the service life cannot be shortened, due to the arrangement of the elastic supporting piece, when adsorbents on the magnetic roller swell irregularly, the contact scraping plate can be dynamically adjusted, and the service life of the magnetic roller is prolonged. And the stability of the whole device during working is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic separators, in particular to an adjustable scraping mechanism for a magnetic separator. Background Technique

[0002] In modern industrial production, as an important ore dressing equipment, magnetic separators are widely used in the fields of mining, metallurgy, chemical industry, building materials, etc. The main function of a magnetic separator is to separate magnetic substances from non-magnetic substances in materials by using magnetic differences, so as to improve the purity and quality of the materials. The structural design of the magnetic separator directly affects its separation effect, processing capacity and operation stability. The magnetic roller is the main core component of the magnetic separator, and the scraping mechanism is an important component for maintaining the working quality of the magnetic roller.

[0003] Chinese Patent CN211563298 U discloses an adaptive scraping device for a magnetic separator. The key points of its technical solution are: the device is fixedly installed on the magnetic separator, and the magnetic separator includes a permanent magnet roller cylinder body for rolling and screening the materials put into the magnetic separator; the adaptive scraping device for the magnetic separator includes a rotating device, a gravity moment device and a scraping device. The rotating device is installed on the opposite side of the magnetic force area of the permanent magnet roller cylinder body. The rotating device is connected with the gravity moment device on both sides, and the scraping device is installed on the rotating device, and the scraping device is attached to the permanent magnet roller cylinder body.

[0004] During the use of the above technical solution, the rubber scraping plate of the scraping device is always in direct contact with the magnetic roller, which will cause excessive wear during use and reduce the service life. At the same time, when there are irregular bulges on the adsorbents on the magnetic roller, it will cause jamming vibration and even jamming. Content of the Utility Model

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] An adjustable scraping mechanism for a magnetic separator includes a support frame, two rotating shaft seats symmetrically arranged on the support frame, a scraping plate mechanism is arranged between the two rotating shaft seats, and a counterweight mechanism is also arranged below the scraping plate mechanism. The scraping plate mechanism includes two swing arms, the two swing arms are respectively rotatably connected with the rotating shaft seats, rollers are rotatably arranged at the front ends of the swing arms, the rollers are in contact with the magnetic roller, a bracket is detachably arranged on one side where the two swing arms face each other, a contact scraping plate is movably arranged on the bracket, and an elastic support member is arranged between the rear end of the contact scraping plate and the bracket, and the elastic support member is detachably arranged on the bracket.

[0007] Preferably, a bearing is arranged in the rotating shaft seat, and a spline sleeve is arranged in the bearing.

[0008] Preferably, the swing arm includes a bottom plate. A spline shaft is arranged on one side of the bottom plate and inserted into a spline sleeve. A roller is rotatably arranged at the front end of the bottom plate, and a plurality of first mounting holes are arranged on the bottom plate.

[0009] Preferably, the bracket includes two symmetrically arranged support beams. Second mounting holes corresponding to the first mounting holes are arranged on the outer sides of the support beams. A plurality of cross beams are arranged between the inner sides of the two support beams. Chutes are arranged on the inner side walls of the two support beams, and both ends of the contact scraper are slidably arranged in the chutes.

[0010] Preferably, the elastic support member includes a U-shaped cross frame. Slide bars and through holes are arranged on the outer sides of both ends of the U-shaped cross frame. The slide bars slide in the chutes. A plurality of support columns are arranged horizontally on the inner side of the bottom edge of the U-shaped cross frame. Springs are sleeved on the support columns, and the other ends of the springs are provided with U-shaped plugs, which are in contact with the bottom end of the contact scraper.

[0011] Preferably, a collar is arranged at the upper end of the counterweight mechanism, and a U-shaped connecting ear is arranged at the bottom of the bottom plate. A pin shaft is inserted into the U-shaped connecting ear, and the collar is rotatably sleeved on the pin shaft.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, the contact between the contact scraper and the magnetic roller is only a contact state. During the use process, unnecessary extrusion will not be caused to the magnetic roller, thus causing excessive wear and reducing the service life. At the same time, the setting of the elastic support member enables the contact scraper to dynamically adjust when irregular bulges appear on the adsorbed substances on the magnetic drum, thereby improving the stability of the entire device during operation. Description of the Drawings

[0014] Figure 1 It is a sectional view of the overall structure of the present utility model;

[0015] Figure 2 It is a top view of the scraper mechanism of the present utility model;

[0016] Figure 3 It is an inner side view of the support beam of the present utility model.

[0017] In the figure: 1, support frame; 2, rotating shaft seat; 3, scraper mechanism; 4, bearing; 5, spline sleeve; 6, counterweight mechanism; 7, elastic support member; 3-1, swing arm; 3-2, bracket; 3-3, contact scraper; 3-11, bottom plate; 3-12, spline shaft; 3-13, roller; 3-14, first mounting hole; 3-15, U-shaped connecting ear; 3-16, pin shaft; 3-21, support beam; 3-22, second mounting hole; 3-23, cross beam; 3-24, chute; 7-1, U-shaped cross frame; 7-2, slide bar; 7-3, through hole; 7-4, support column; 7-5, spring; 7-6, U-shaped plug. Detailed implementation manners

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Embodiment

[0021] As Figures 1-3As shown in the figure, in this embodiment, an adjustable scraping mechanism for a magnetic separator includes a support frame 1, two rotating shaft seats 2 symmetrically arranged on the support frame 1, a scraping plate mechanism 3 arranged between the two rotating shaft seats 2, a bearing 4 arranged in the rotating shaft seat 2, and a spline sleeve 5 arranged in the bearing 4. A weight mechanism 6 is further arranged at the lower part of the scraping plate mechanism 3. The scraping plate mechanism 3 includes two swing arms 3-1. The swing arm 3-1 includes a bottom plate 3-11. A spline shaft 3-12 is arranged on one side of the bottom plate 3-11. The spline shaft 3-12 is inserted into the spline sleeve 5. A roller 3-13 is rotatably arranged at the front end of the bottom plate 3-11. The roller 3-13 is in contact with the magnetic roller. A number of first mounting holes 3-14 are arranged on the bottom plate 3-11. A bracket 3-2 is detachably arranged on the opposite side of the two swing arms 3-1. A contact scraping plate 3-3 is movably arranged on the bracket 3-2. An elastic support member 7 is arranged between the rear end of the contact scraping plate 3-3 and the bracket 3-2. The elastic support member 7 is detachably arranged on the bracket 3-2. In this embodiment, the parts of the two ends of the magnetic roller in contact with the rollers 3-13 are non-magnetic working areas and are not in contact with the materials to be selected.

[0022] In this embodiment, the bracket 3-2 includes two support beams 3-21 arranged symmetrically. Second mounting holes 3-22 corresponding to the first mounting holes 3-14 are arranged on the outer sides of the support beams 3-21. A number of cross beams 3-23 are arranged between the inner sides of the two support beams 3-21. Sliding grooves 3-24 are arranged on the inner side walls of the two support beams 3-21. Both ends of the contact scraping plate 3-3 are slidably arranged in the sliding grooves 3-24.

[0023] In this embodiment, the elastic support member 7 includes a U-shaped cross frame 7-1. Slide bars 7-2 and through holes 7-3 are arranged on the outer sides of both ends of the U-shaped cross frame 7-1. The slide bars 7-2 slide in the sliding grooves 3-24. A number of support columns 7-4 are arranged horizontally on the inner side of the bottom edge of the U-shaped cross frame 7-1. Springs 7-5 are sleeved on the support columns 7-4. The other ends of the springs 7-5 are provided with U-shaped plugs 7-6. The U-shaped plugs 7-6 are in contact with the bottom end of the contact scraping plate 3-3.

[0024] In this embodiment, a collar is arranged at the upper end of the weight mechanism 6. A U-shaped connecting ear 3-15 is arranged at the bottom of the bottom plate 3-11. A pin shaft 3-16 is inserted into the U-shaped connecting ear 3-15. The collar is rotatably sleeved on the pin shaft 3-16.

[0025] The working principle and beneficial effects of the above technical solution are as follows:

[0026] In use, in the first step, the counterweight mechanism 6 is set so that the swing arm 3-1 always presses against the magnetic drum. At the same time, the setting of the roller 3-13 enables stable contact with the magnetic roller, playing a supporting role, while maintaining rolling friction with the magnetic roller to keep losses low. In the present utility model, the counterweight mechanism 6 is rotatably connected to the swing arm 3-1, so that the counterweight mechanism 6 is always vertically downward, maintaining good stability. In the second step, the U-shaped cross frame 7-1 is fixed to the bracket 3-2 by passing a bolt through the through hole 7-3 from the inner side of the U-shaped cross frame 7-1 and contacting the chute 3-24. When fixing, the front end of the contact scraper 3-3 only needs to contact the magnetic roller, in a zero-pressure or micro-pressure state, so as to reduce unnecessary friction with the magnetic roller, reduce losses, increase the service life, and not interfere with the normal rotation of the magnetic roller. In the third step, start the magnetic separator and start normal operation. During operation, the setting of the elastic support member 7 enables the contact scraper 3-3 to ensure a dynamically adjustable state, preventing the contact scraper 3-3 from being squeezed when there are large protrusions on the surface of the magnetic drum, causing jamming and vibration, and affecting the stability during work.

[0027] Compared with the prior art, in the present utility model, the contact between the contact scraper 3-3 and the magnetic roller is only a contact state, and unnecessary extrusion will not be caused to the magnetic roller during use, thus causing excessive wear and reducing the service life. At the same time, the setting of the elastic support member 7 enables the contact scraper 3-3 to dynamically adjust when irregular bulges appear on the adsorbed substances on the magnetic drum, thereby improving the stability of the whole device during operation.

[0028] The above is only the preferred specific implementation manner of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. An adjustable scraping mechanism for a magnetic separator, characterized in that, It includes a support frame (1), two pivot seats (2) symmetrically arranged on the support frame (1), a scraper mechanism (3) arranged between the two pivot seats (2), and a counterweight mechanism (6) arranged below the scraper mechanism (3). The scraper mechanism (3) includes two swing arms (3-1), the two swing arms (3-1) are respectively rotatably connected to the pivot seats (2), a roller (3-13) is rotatably arranged at the front end of the swing arm (3-1), the roller (3-13) is in contact with the magnetic roller, a bracket (3-2) is detachably arranged on one side where the two swing arms (3-1) face each other, a contact scraper (3-3) is movably arranged on the bracket (3-2), and an elastic support member (7) is arranged between the rear end of the contact scraper (3-3) and the bracket (3-2), and the elastic support member (7) is detachably arranged on the bracket (3-2).

2. The adjustable scraping mechanism of a magnetic separator according to claim 1, characterized in that, A bearing (4) is arranged in the pivot seat (2), and a spline sleeve (5) is arranged in the bearing (4).

3. The adjustable scraping mechanism of a magnetic separator according to claim 1, wherein, The swing arm (3-1) includes a bottom plate (3-11), a spline shaft (3-12) is arranged on one side of the bottom plate (3-11), the spline shaft (3-12) is inserted into the spline sleeve (5), the roller (3-13) is rotatably arranged at the front end of the bottom plate (3-11), and a number of first mounting holes (3-14) are arranged on the bottom plate (3-11).

4. The adjustable scraping mechanism of a magnetic separator according to claim 1, characterized in that, The bracket (3-2) includes two symmetrically arranged support beams (3-21), mounting holes two (3-22) corresponding to the first mounting holes (3-14) are arranged on the outer sides of the support beams (3-21), a number of cross beams (3-23) are arranged between the inner sides of the two support beams (3-21), and chutes (3-24) are arranged on the inner side walls of the two support beams (3-21), and both ends of the contact scraper (3-3) are slidably arranged in the chutes (3-24).

5. An adjustable scraping mechanism for a magnetic separator according to claim 4, characterized in that, The elastic support member (7) includes a U-shaped cross frame (7-1), sliding strips (7-2) and through holes (7-3) arranged through are arranged on the outer sides of both ends of the U-shaped cross frame (7-1), the sliding strips (7-2) slide in the chutes (3-24), a number of support columns (7-4) are arranged horizontally inside the bottom edge of the U-shaped cross frame (7-1), springs (7-5) are sleeved on the support columns (7-4), and the other ends of the springs (7-5) are provided with U-shaped plugs (7-6), and the U-shaped plugs (7-6) are in contact with the bottom end of the contact scraper (3-3).

6. The adjustable scraping mechanism of a magnetic separator according to claim 3, characterized in that, A collar is arranged at the upper end of the counterweight mechanism (6), a U-shaped connecting ear (3-15) is arranged at the bottom of the bottom plate (3-11), a pin shaft (3-16) is inserted into the U-shaped connecting ear (3-15), and the collar is rotatably sleeved on the pin shaft (3-16).

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