Permanent magnet drum type magnetic separator with adjustable magnetic field intensity

Abstract

The utility model discloses a permanent magnet drum type magnetic separator with adjustable magnetic field intensity, and belongs to the technical field of preparation equipment. The device comprises a magnetic system, a main shaft, a motor, a speed reducer, a synchronous belt and a gap adjusting device. The main shaft comprises a gap adjusting section and a magnetic system fixing section which are connected in sequence; the gap adjusting devices comprise a left group and a right group which are respectively connected with the gap adjusting sections at the two ends of the main shaft, and each group comprises a gap adjusting handle, a screw rod, a locking nut, a gap adjusting shaft sleeve and a sliding block mechanism; the gap adjusting handle drives the sliding block mechanism through the screw, the sliding block mechanism is connected with the gap adjusting shaft sleeve, the gap adjusting shaft sleeve is in clearance fit with the main shaft, the gap adjusting shaft sleeve is driven to horizontally move along the main shaft through movement of the sliding block mechanism, and therefore the gap between the magnetic system and the inner wall of the barrel is adjusted. And the speed reducer is adjustably fixed on the rack through a bolt and is used for adjusting the tightness of the synchronous belt. The gap between the magnetic system and the cylinder body can be adjusted by rotating the handle under the condition that the whole machine is not disassembled, so that the magnetic field intensity is adjusted, and the operation is convenient.

Description

Technical Field

[0001] This utility model relates to an adjustment device, specifically an adjustment device for the inner wall of the magnetic cylinder and the gap between the magnetic system in a permanent magnet drum magnetic separator. That is, a mechanism is used to adjust the inner wall of the magnetic cylinder and the gap between the magnetic system, thereby adjusting the magnetic field strength of the magnetic separator. Background Technology

[0002] Magnetic separators are mineral processing equipment widely used for separating magnetic minerals. In practical applications, it is often necessary to adjust the strength of the magnetic field. The gap between the inner wall of the magnetic cylinder and the magnetic system directly affects the strength of the magnetic field. Adjusting this gap is difficult without disassembling the entire machine, making it inconvenient.

[0003] Therefore, providing a convenient magnetic field strength adjustment device for magnetic separators is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides a permanent magnet drum magnetic separator with adjustable magnetic field strength, which can adjust the gap between the inner wall of the drum and the bottom plate of the magnetic system without disassembling the entire magnetic separator, thereby adjusting the magnetic field strength of the magnetic separator.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A permanent magnet drum magnetic separator with adjustable magnetic field strength includes a magnetic system, a motor, a reducer, and a synchronous belt, and further includes:

[0007] The main shaft includes, from left to right, an adjustment section connected to the left adjustment device, a magnetic system fixing section, and a right adjustment section connected to the right adjustment device.

[0008] The gap adjustment device includes an adjustment handle, a screw, a locking nut, an adjustment bushing, and a slider mechanism. The adjustment handle is connected to the slider mechanism via the screw. The adjustment bushing is clearance-fitted with the main shaft. The locking nut is used to fix the gap adjustment device. The slider mechanism includes a slider and a guide rail. The slider is connected to the adjustment bushing and is used to adjust the gap between the main shaft and the bushing. The gap adjustment device consists of two parts, left and right, distributed on both sides of the main shaft, which adjust the gap at equal intervals to ensure stable rotation of the cylinder.

[0009] The timing belt and reducer are bolted to the frame. The position of the reducer on the frame can be adjusted to adjust the tension of the timing belt, so that the tension of the timing belt does not change before and after the cylinder gap is adjusted.

[0010] By adopting the above technical solutions, the beneficial effects of this utility model are as follows:

[0011] By utilizing the relative movement between the adjusting bushing and the main shaft, the gap between the inner wall of the cylinder and the magnetic system can be changed. By using the screw and the helical pair of the top support, the gap distance between the adjusting bushing and the main shaft can be controlled and adjusted. This allows for the adjustment of the gap between the inner wall of the cylinder and the bottom plate of the magnetic system without disassembling the entire magnetic separator, thereby adjusting the magnetic field strength of the magnetic separator and improving convenience.

[0012] Furthermore, the reducer is fixed to the frame with four bolts, and its position on the frame can be adjusted by loosening the bolts.

[0013] Furthermore, the gap adjustment device is horizontally fixed to the support by bolts.

[0014] Furthermore, the rotary handle is connected to the screw, the screw is screwed to the top support, the slider is fixed on the screw, and the locking nut fixes the movement of the screw and the top support, thereby fixing the up and down movement of the slider.

[0015] Furthermore, the magnetic system is fixed in a horizontal working position, and the center of gravity is kept stable by using a counterweight in the horizontal direction.

[0016] Furthermore, the gap adjustment device simultaneously adjusts the gap between the magnetic system and the cylinder on both the left and right sides of the main shaft.

[0017] Furthermore, the adjusting bushing and the main shaft are in clearance fit, and the adjusting bushing can only move in the horizontal direction.

[0018] This invention transforms the invisible and immeasurable gap into a controllable handle rotation, allowing the operator to adjust the gap between the inner wall of the cylinder and the bottom plate of the magnetic system without disassembling the entire magnetic separator, thereby changing the magnetic field strength of the magnetic separator. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 The attached figure is an overall view of a permanent magnet drum magnetic separator with adjustable magnetic field strength provided by this utility model;

[0021] Figure 2 The attached figure is a side view of the adjustment device structure;

[0022] Figure 3 The attached figure is a front view of the gap adjustment device structure;

[0023] Figure 4The attached diagram shows the limit positions of the main spindle and the adjusting sleeve.

[0024] Figure 5 The attached figure is a schematic diagram of the working position of the magnetic system inside the magnetic separator of the magnetic separator, which is a gap adjustment device for a magnetic separator provided by this utility model. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-5 As shown in the figure, this utility model discloses a permanent magnet drum magnetic separator with adjustable magnetic field strength, including 1-motor, 2-reducer, 3-synchronous belt, 4-drum body, 5-counterweight, 6-main shaft, and 7-magnetic system. The 6-main shaft includes, from left to right, a left-side adjustment device, a 7-fixed section of the magnetic system, and a right-side adjustment device. The adjustment device includes 13-adjustment handle, 14-screw, 15-washer, 16-screw, 17-locking nut, 20-adjustment bushing, and 22-base support. The slider mechanism includes a 16-screw connected to the slider mechanism, a 20-adjusting bushing with a clearance fit to a 6-main shaft, and a 17-locking nut for fixing the adjustment device. The slider mechanism comprises a 19-slider and a 21-slide rail. The 19-slider connects to the 20-adjusting bushing to adjust the clearance between the 6-main shaft and the 20-adjusting bushing. The 2-reducer is bolted to the 9-frame, allowing adjustment of its position on the 9-frame, thereby adjusting the tension of the 3-synchronous belt. Figure 5 As shown, the 7-magnetic system is fixed in a horizontal working position. Specifically, the 7-magnetic system includes a permanent magnet and a middle magnetic yoke for fixing the permanent magnet. The middle magnetic yoke is fixed to the lower arc-shaped clamp by a support plate, and the permanent magnet is fixed on the middle magnetic yoke. The center of gravity is kept stable by using the 5-counterweight in the horizontal direction. This utility model rotates the 13-adjustment handle, which drives the screw 16-screw. The screw 16-screw interacts with the thread of the 18-top support, moving up and down, and simultaneously driving the 19-slider to move up and down. The 19-slider then drives the 20-adjustment bushing to move left and right in the horizontal direction. The rear end of the 20-adjustment bushing is connected to the 10-right end cover through the 11-deep groove ball bearing. When the bushing moves, the bearing and end cover move accordingly, and the roller fixed on the end cover also moves up and down. After moving to a certain position, the 17-locking nut is tightened to fix the position of the cylinder. This allows for adjustment of the gap without disassembling the cylinder, thereby adjusting the magnetic field strength of the magnetic separator.

[0027] Specifically, the 2-reducer is fixed to the 9-frame with four bolts. Before adjusting the clearance, the bolts need to be loosened, the position of the 2-reducer on the 9-frame needs to be adjusted, and the tension of the 3-synchronous belt needs to be adjusted, which means adjusting the center distance between the 2-reducer and the 4-cylinder.

[0028] Specifically, the gap adjustment device includes 13-gap adjustment handle, 14-screw, 15-washer, 16-thread rod, 17-locking nut, 18-top support, and 20-gap adjustment bushing. The gap adjustment device is horizontally fixed to the support by bolts.

[0029] Specifically, 13-adjusting handle is connected to 16-screw, 16-screw is screwed to 18-top support, 19-slider is fixed on 16-screw, and 17-locking nut fixes the movement of 16-screw and 18-top support, thereby fixing the up and down movement of 19-slider.

[0030] Specifically, the 7-magnetic system is fixed in a horizontal working position, and the 5-counterweight in the horizontal direction is used to maintain the stability of the center of gravity.

[0031] Specifically, the gap adjustment device simultaneously adjusts the gap between the 7-magnetic system and the 4-cylinder on both the left and right sides of the main shaft.

[0032] Specifically, the 6-spindle is fixed on the 8-support, and the 8-support is fixed on the 9-frame, so the 6-spindle does not move.

[0033] Specifically, the 20-adjusting bushing and the 6-spindle are in clearance fit, and the 20-adjusting bushing can only move in the horizontal direction.

[0034] Specifically, the 4-cylinder is connected to the 20-adjusting bushing via the 10-right end cover, the 11-deep groove ball bearing 6015, and the 12-bearing end cover.

[0035] The working principle of this utility model:

[0036] Main shaft fixed: 6-The main shaft is fixed on the 8-support. During the adjustment of the gap and the operation of the magnetic separator, 6-The main shaft does not move.

[0037] Gap adjustment: Rotate 13-adjustment handle to drive 16-screw to rotate, causing 19-slider to move up and down, which in turn drives 20-adjustment bushing to move left and right in the horizontal direction, adjusting the gap between 2-main shaft and 20-adjustment bushing, so that the gap between 4-cylinder and 7-magnetic system meets the requirements.

[0038] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A permanent magnet drum magnetic separator with adjustable magnetic field strength, comprising a magnetic system, a motor, and a reducer, characterized in that, Also includes: The main shaft comprises, from left to right, an adjustment section connected to the left-side adjustment device, a magnetic fixing section, and a right-side adjustment section connected to the right-side adjustment device. The adjustment device includes an adjustment handle, a screw, a locking nut, an adjustment bushing, and a slider mechanism. The adjustment handle is connected to the slider mechanism via the screw. The adjustment bushing is clearance-fitted with the main shaft. The locking nut secures the adjustment device. The slider mechanism includes a slider and a guide rail. The slider connects to the adjustment bushing and is used to adjust the gap between the main shaft and the bushing. The adjustment device consists of two parts, left and right, distributed on both sides of the main shaft, allowing for equidistant adjustment of the gap to ensure stable cylinder rotation. A synchronous belt and a reducer are also included. The reducer is bolted to the frame and its position on the frame can be adjusted to regulate the tension of the synchronous belt, ensuring that the tension remains unchanged before and after gap adjustment.

2. The permanent magnet drum magnetic separator with adjustable magnetic field strength according to claim 1, characterized in that, The adjustment device is horizontally fixed on the support via the spindle support.

3. The permanent magnet drum magnetic separator with adjustable magnetic field strength according to claim 1, characterized in that, The rotary handle is connected to the screw, the screw is screwed to the top support, the slider is fixed on the screw, and the locking nut fixes the movement of the screw and the top support, thereby fixing the up and down movement of the slider.

4. A permanent magnet drum magnetic separator with adjustable magnetic field strength according to claim 1, characterized in that, It also includes a lower arc-shaped clamping plate, on which the magnetic system is fixed and in a horizontal working position, using a counterweight in the horizontal direction to maintain the stability of the center of gravity.

5. A permanent magnet drum magnetic separator with adjustable magnetic field strength according to claim 1, characterized in that, The gap adjustment device adjusts the gap between the magnetic system and the cylinder on both sides of the main shaft.

6. A permanent magnet drum magnetic separator with adjustable magnetic field strength according to claim 4, characterized in that, The magnetic system includes a central magnetic yoke and a permanent magnet. The central magnetic yoke is fixed to the lower arc-shaped clamp by a support plate, and the permanent magnet is fixed to the central magnetic yoke.

7. A permanent magnet drum magnetic separator with adjustable magnetic field strength according to claim 1, characterized in that, The adjusting bushing and the main spindle are fitted with a clearance fit, and the adjusting bushing can only move in the horizontal direction.

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