A drum magnetic separator bottom box ore discharging gap adjusting device
By introducing an adjustment device with a worm gear, worm wheel, and screw structure into the drum magnetic separator, the problem of inconvenient adjustment of the bottom box unloading gap was solved, enabling precise online adjustment and improving production adaptability and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-19
AI Technical Summary
In the production process, existing drum magnetic separators have difficulties in adjusting the unloading gap of the bottom box, making it difficult to adapt to changes in the properties of the feed minerals and increases in throughput, resulting in substandard product quality.
A bottom box unloading gap adjustment device was designed, including a main support frame, reinforcing members, and an adjustment mechanism. The bottom box unloading gap is adjusted online using a worm gear, worm wheel, and lead screw structure, and precise adjustment is achieved through handwheel drive.
It enables precise adjustment of the ore unloading gap in the bottom box of the magnetic separator, avoiding disassembly and reassembly, improving the safety and convenience of operation, and ensuring product quality.
Smart Images
Figure CN224371650U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bottom box unloading technology for drum magnetic separators, specifically a bottom box unloading gap adjustment device for drum magnetic separators. Background Technology
[0002] The drum magnetic separator is a type of wet magnetic separator with high magnetic field strength, widely used in metallurgical mines, mining industries, and mineral processing plants to separate fine-particle magnetic minerals or remove magnetic minerals mixed in with non-magnetic minerals. It features high magnetic field strength, deep magnetic field penetration, and resistance to demagnetization.
[0003] The bottom box of the magnetic separator is placed on the separator frame using angle steel or channel steel. The positions of the drum, reducer, and motor on the frame are relatively fixed. Adjusting the discharge gap of the magnetic separator is mainly done by adjusting the bottom box. After the magnetic separator is installed, there may be cases where the gap between the discharge edge of the bottom box and the magnetic drum is too large or too small. During the production and beneficiation operation, due to changes in the properties of the feed minerals, a decrease in mineral magnetism, or changes in product quality or increased throughput, it is necessary to adjust the discharge gap of the bottom box to ensure the production of qualified products. Utility Model Content
[0004] The purpose of this utility model is to provide a device for adjusting the ore discharge gap of the bottom box of a cylindrical magnetic separator, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a ore unloading gap adjustment device for a drum magnetic separator bottom box, comprising a main support frame, a reinforcing member fixedly connected to the left side of the main support frame, and an adjustment mechanism provided on the left side of the main support frame;
[0006] The adjustment mechanism includes a first support arm, which is fixedly connected to the left side of the main support frame. A second support arm is fixedly connected to the top of the first support arm. A support sleeve is fixedly connected to the inner side of the first support arm. A support seat is fixedly connected to the left side of the second support arm. A worm is provided inside the support seat. A worm wheel meshes with the outer wall of the worm. An internal spline is fixedly connected to the inner ring of the worm wheel. An external spline meshes with the inner ring of the internal spline. A lead screw is fixedly connected to the inner ring of the external spline. A positioning block is fixedly connected to the right end of the lead screw. A nut is fixedly connected inside the main support frame.
[0007] Preferably, the lead screw is threaded to the inner wall of the lead screw nut, and the internal spline passes through the support sleeve and rotates to provide stable support for the internal spline.
[0008] Preferably, the support base has rotating holes on both the front and back sides, and the worm gear is rotatably connected to the inner wall of the rotating hole to provide stable support for the worm gear.
[0009] Preferably, a handwheel is fixedly connected to the front end of the worm gear, so that the worm gear can be rotated by driving the handwheel.
[0010] Compared with the prior art, this utility model provides a device for adjusting the ore discharge gap of the bottom box of a drum magnetic separator, which has the following beneficial effects:
[0011] 1. This utility model allows for online adjustment of the ore unloading gap in the bottom box of the magnetic separator, eliminating the need for disassembly and reinstallation of the magnetic separator.
[0012] 2. This utility model uses a lead screw adjustment, which can be adjusted from both sides simultaneously, making the gap adjustment more precise.
[0013] 3. This utility model has a simple structure, no transmission device, is safe and reliable, and is easy to operate and maintain. Attached Figure Description
[0014] Figure 1 This is a front view of the structure of this utility model;
[0015] Figure 2 This is a left view of the structure of this utility model;
[0016] Figure 3 A partial cutaway diagram of the main support frame;
[0017] Figure 4 This is a schematic diagram of the lead screw structure.
[0018] In the diagram: 1. Main support frame; 2. Reinforcing member; 3. Adjustment mechanism; 31. Support arm one; 32. Support sleeve; 33. Support arm two; 34. Support seat; 35. Worm gear; 36. Worm wheel; 37. Internal spline; 38. External spline; 39. Lead screw; 301. Positioning block; 302. Nut. Detailed Implementation
[0019] 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.
[0020] This utility model provides the following technical solution:
[0021] Combination Figures 1 to 4 A device for adjusting the unloading gap of the bottom box of a cylindrical magnetic separator includes a main support frame 1, a reinforcing member 2 fixedly connected to the left side of the main support frame 1, and an adjustment mechanism 3 provided on the left side of the main support frame 1.
[0022] The adjustment mechanism 3 includes a support arm 31, which is fixedly connected to the left side of the main support frame 1. A support arm 33 is fixedly connected to the top of the support arm 31. A support sleeve 32 is fixedly connected to the inner side of the support arm 31. A support seat 34 is fixedly connected to the left side of the support arm 33. A worm 35 is provided inside the support seat 34. A worm wheel 36 meshes with the outer wall of the worm 35. An inner spline 37 is fixedly connected to the inner ring of the worm wheel 36. An outer spline 38 meshes with the inner ring of the inner spline 37. A lead screw 39 is fixedly connected to the inner ring of the outer spline 38. A positioning block 301 is fixedly connected to the right end of the lead screw 39. A nut 302 is fixedly connected inside the main support frame 1.
[0023] The lead screw 39 is threaded to the inner wall of the lead screw nut 302, and the inner spline 37 passes through the support sleeve 32 and rotates, providing stable support for the inner spline 37.
[0024] The support base 34 has rotating holes on both the front and back sides, and the worm gear 35 is rotatably connected to the inner wall of the rotating hole to provide stable support for the worm gear 35.
[0025] A handwheel is fixedly connected to the front end of the worm gear 35, which facilitates the rotation of the worm gear 35 by means of the handwheel.
[0026] In actual operation, when using this device, first place it on the magnetic separator frame using the main support frame 1, so that the right end of the lead screw 39 faces the bottom box of the magnetic separator, and at the same time ensure that the right side of the positioning block 301 can be pressed against the bottom box of the magnetic separator. Then, turn the handwheel to drive the worm 35 to rotate. The worm 35 can drive the inner spline 37 to rotate through the worm wheel 36. Since the inner spline 37 and the outer spline 38 are meshed, the inner spline 37 will drive the lead screw 39 to rotate through the outer spline 38. The lead screw 39 and the nut 302 are threadedly connected, so the lead screw 39 will move. When adjusting the unloading gap of the bottom box of the magnetic separator, the gap can be adjusted according to the original unloading gap size and the required size. When the unloading gap is small, place the device in front of the bottom box; when the gap is large, place it behind the bottom box.
Claims
1. A device for adjusting the unloading gap of a drum magnetic separator bottom box, comprising a main support frame (1), characterized in that: A reinforcing member (2) is fixedly connected to the left side of the main support frame (1), and an adjustment mechanism (3) is provided on the left side of the main support frame (1). The adjustment mechanism (3) includes a support arm (31), which is fixedly connected to the left side of the main support frame (1). A support arm (33) is fixedly connected to the top of the support arm (31). A support sleeve (32) is fixedly connected to the inner side of the support arm (31), and a support seat is fixedly connected to the left side of the support arm (33). (34) A worm (35) is provided on the inner side of the support base (34). A worm wheel (36) is engaged on the outer wall of the worm (35). An inner spline (37) is fixedly connected to the inner ring of the worm wheel (36). An outer spline (38) is engaged on the inner ring of the inner spline (37). A lead screw (39) is fixedly connected to the inner ring of the outer spline (38). A positioning block (301) is fixedly connected to the right end of the lead screw (39). A nut (302) is fixedly connected inside the main support frame (1).
2. The ore unloading gap adjustment device for the bottom box of a drum magnetic separator according to claim 1, characterized in that: The lead screw (39) is threaded to the inner wall of the lead screw nut (302), and the internal spline (37) passes through the support sleeve (32) and rotates.
3. The ore unloading gap adjustment device for the bottom box of a drum magnetic separator according to claim 1, characterized in that: The support base (34) has rotating holes on both the front and back sides, and the worm gear (35) is rotatably connected to the inner wall of the rotating hole.
4. The ore unloading gap adjustment device for the bottom box of a drum magnetic separator according to claim 1, characterized in that: A handwheel is fixedly connected to the front end of the worm (35).