Liftable split type foam scraper structure for a flotation device
The split-type foam scraper structure and adjustable lifting design solve the problem of insufficient contact of the rotating scraper when the liquid level changes, thereby improving flotation efficiency and simplifying the maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-05
AI Technical Summary
The existing rotating scraper structure of flotation equipment cannot fully contact the flotation foam when the liquid level drops, and the maintenance is complicated, which brings inconvenience to maintenance.
It adopts a split foam scraper structure, combined with an adjustable lifting design. The left and right lifting groups drive the rotating shaft and its scraper to lift and lower. The rotating shaft drive unit enables flexible adjustment and disassembly of the scraper, which facilitates full contact with the flotation foam.
It achieves adaptive contact of the scraper under different liquid level conditions, improves flotation efficiency, simplifies the maintenance process, and reduces maintenance difficulty.
Smart Images

Figure CN224321594U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flotation machine foam scraper technology, and in particular to a liftable and split foam scraper structure for flotation equipment. Background Technology
[0002] The foam scraper structure is a mechanical structure installed on flotation equipment to scrape off flotation foam and place it into a guide tank. Existing flotation equipment uses a rotating scraper structure, in which the scraper is fixedly mounted on a rotating shaft. At the same time, the rotating shaft is fixedly mounted at the opening of the flotation cell via a bearing seat. In this installation structure, when the liquid level in the flotation equipment decreases during flotation operation, the foam level also decreases. At this time, the rotating scraper cannot fully contact the flotation foam. In addition, when the rotating scraper is fixedly mounted on the rotating shaft, the entire scraper device needs to be disassembled for maintenance, which is complicated and causes great inconvenience to maintenance personnel. Utility Model Content
[0003] The purpose of this utility model is to provide a liftable split foam scraper structure for flotation equipment. It adopts a split foam scraper structure design, which makes it easy to disassemble and assemble the scraper. At the same time, the foam scraper structure as a whole adopts a liftable and adjustable design, which makes it easy for the foam scraper to fully contact the flotation foam and ensure flotation efficiency.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A liftable split-type foam scraper structure for flotation equipment includes a left support, a right support, a left lifting group, a right lifting group, a rotating shaft, a split scraper assembly, and a rotating shaft drive unit.
[0006] The left and right supports are mounted on the external equipment rack; a left lifting assembly is mounted on the left support and is connected to the left support by bolts; a right lifting assembly is mounted on the right support and is connected to the right support by bolts.
[0007] A rotating shaft is provided on the left and right lifting groups to drive the split scraper assembly to rotate. The split scraper assembly is bolted to the rotating shaft for flotation and scraping of flotation foam. A rotating shaft drive unit is provided at one end of the rotating shaft to drive the rotating shaft to rotate.
[0008] The left and right lifting groups have the same structure, each including a support frame, a working cylinder, a cylinder telescopic rod, a connector, and a rotating shaft support. The working cylinder is mounted on the support frame, and a telescopic cylinder telescopic rod is installed on the working cylinder. A connector is provided at the outer end of the cylinder telescopic rod. The cylinder telescopic rod is connected to the rotating shaft support through the connector and drives the rotating shaft support to adjust its lifting displacement.
[0009] Furthermore, a guide rail is provided on the load-bearing frame, and the guide rail is installed and connected to the load-bearing frame by bolts. A slider is slidably engaged on the guide rail, and the rotating shaft support is installed and connected to the slider.
[0010] The rotating shaft support includes an adjustment frame, a bearing support, and a supporting bearing; the adjustment frame is mounted on the slider, the bearing support is mounted on the adjustment frame, and the supporting bearing is mounted on the bearing support for supporting the rotating shaft.
[0011] The split-type scraper assembly includes a mounting sleeve, a locking bolt, a connecting bolt, and a scraper body. The mounting sleeve has a through hole, which is fitted onto the rotating shaft and connected to the rotating shaft by the locking bolt. A scraper body for scraping away foam is provided on the outer periphery of the mounting sleeve, and the scraper body is connected to the mounting sleeve by the connecting bolt.
[0012] The rotary shaft drive unit includes a drive motor, a reducer, a drive shaft, and a coupling. The reducer is mounted on an adjustment frame, and the drive motor is mounted on the power input end of the reducer to provide rotational torque to the reducer. A drive shaft is mounted on the power output end of the reducer, and the drive shaft is connected to the rotary shaft through a coupling to drive the rotary shaft to rotate.
[0013] The beneficial effects of this utility model are as follows: In practical use, the liftable split-type foam scraper structure of this utility model allows for adaptive foam scraping operations on mining flotation equipment through the coordinated operation of components such as the left lifting group, right lifting group, rotating shaft, split-type scraper assembly, and rotating shaft drive unit. The split-type scraper assembly adopts a split-type foam scraper structure design, which facilitates the disassembly and assembly of the scraper. Specifically, the working cylinders in the left and right lifting groups can drive the cylinder extension rod to adjust the lifting displacement of the rotating shaft support unit through the connecting head. The rotating shaft support unit can drive the rotating shaft and its split-type scraper assembly to make adaptive height adjustments to ensure sufficient contact with the flotation liquid surface and guarantee the flotation effect. Furthermore, the split-type scraper assembly is assembled using an installation sleeve, locking bolts, connecting bolts, and scraper body, making disassembly and maintenance convenient. Attached Figure Description
[0014] Figure 1This is a schematic diagram of the overall structure of the liftable and split foam scraper structure of this utility model;
[0015] Figure 2 This is a structural schematic diagram of the left lifting assembly and the right lifting assembly of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the rotating shaft support part in this utility model;
[0017] Figure 4 This is a structural schematic diagram of the split scraper assembly in this utility model;
[0018] Figure 5 This is a schematic diagram of the rotating shaft drive unit in this utility model;
[0019] The numbers in the diagram are as follows: 1-Left side support, 2-Right side support, 3-Left lifting assembly, 4-Right lifting assembly, 5-Rotating shaft, 6-Split scraper assembly, 7-Rotating shaft drive unit; 31-Bearing frame, 32-Working cylinder, 33-Cylinder telescopic rod, 34-Connector, 35-Rotating shaft support unit, 36-Guide rail; 351-Adjusting frame, 352-Bearing support, 353-Support bearing; 61-Mounting sleeve, 62-Locking bolt, 63-Connecting bolt, 64-Scraper body; 71-Drive motor, 72-Reducer, 73-Drive shaft, 74-Coupling. Detailed Implementation
[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly or indirectly connected to the other element. When an element is referred to as "connected to" another element, it can be directly or indirectly connected to the other element. The terms "left" and "right" used in this application to indicate orientation are based on the specific structure shown in the accompanying drawings and do not constitute a limitation on the structure.
[0021] Specific Embodiment 1: As shown in the appendix to the specification of this utility model. Figure 1As shown, to address the problems of complex maintenance and the inability to adjust the scraper position during maintenance of a rotating scraper fixedly mounted on a rotating shaft, requiring disassembly of the entire scraper assembly, this invention provides a liftable, split-type foam scraper structure for flotation equipment. It mainly includes a left support 1, a right support 2, a left lifting assembly 3, a right lifting assembly 4, a rotating shaft 5, a split-type scraper assembly 6, and a rotating shaft drive unit 7. The left support 1 and right support 2 are mounting supports used to support the left lifting assembly 3 and right lifting assembly 4. During installation, the left support 1 and right support 2 are mounted on an external frame. A left lifting assembly 3 is installed to drive the rotating shaft 5 to rise and fall. During installation, the left lifting assembly 3 is connected to the left support 1 by bolts. A right lifting assembly 4, which also drives the rotating shaft 5 to rise and fall, is installed on the right support 2. During installation, the right lifting assembly 4 is connected to the right support 2 by bolts. A rotating shaft 5 is provided on the left lifting assembly 3 and the right lifting assembly 4 to drive the split scraper assembly 6 to rotate. The split scraper assembly 6 is installed on the rotating shaft 5 by bolts for flotation and scraping off flotation foam. A rotating shaft drive unit 7 is provided at one end of the rotating shaft 5 to drive the rotating shaft 5 to rotate.
[0022] As per the specification attached to this utility model Figure 2 As shown, the left lifting group 3 and the right lifting group 4, which are used to drive the rotating shaft 5 to adjust its height, have the same structure. Both include a support frame 31, a working cylinder 32, a cylinder telescopic rod 33, a connector 34, and a rotating shaft support 35. The working cylinder 32 is used to drive the cylinder telescopic rod 33 to extend and retract. During installation, the working cylinder 32 is mounted on the support frame 31, and the telescopic cylinder telescopic rod 33 is mounted on the working cylinder 32. A connector 34 is provided at the outer end of the cylinder telescopic rod 33. During installation, the cylinder telescopic rod 33 is connected to the rotating shaft support 35 through the connector 34 and drives the rotating shaft support 35 to adjust its height.
[0023] To ensure smooth movement of the rotating shaft support 35 during the lifting and lowering adjustment process, a guide rail 36 is provided on the bearing frame 31. The guide rail 36 is connected to the bearing frame 31 by bolts. A slider is slidably engaged on the guide rail 36. The rotating shaft support 35 is connected to the slider. During adjustment, the slider can support the rotating shaft support 35 under the guidance of the guide rail 36 to achieve smooth adjustment.
[0024] As per the specification attached to this utility model Figure 3As shown, the rotating shaft support 35, which supports the rotating shaft 5 and drives its lifting and adjustment, includes an adjustment frame 351, a bearing support 352, and a support bearing 353. The adjustment frame 351 is used to support the bearing support 352. During installation, the adjustment frame 351 is mounted on the slider, and the bearing support 352 adapted to the bearing installation is mounted on the adjustment frame 351. The support bearing 353 is mounted on the bearing support 352 to support the rotating shaft 5.
[0025] As per the specification attached to this utility model Figure 4 As shown, the split scraper assembly 6 for scraping flotation foam includes a mounting sleeve 61, a locking bolt 62, a connecting bolt 63, and a scraper body 64. The mounting sleeve 61 is mainly used for mounting and connecting the scraper body 64. A smooth circular through hole is machined on the mounting sleeve 61. The mounting sleeve 61 is fitted onto the rotating shaft 5 through the through hole and connected to the rotating shaft 5 by the locking bolt 62. The scraper body 64 for scraping flotation foam is provided on the outer periphery of the mounting sleeve 61. The scraper body 64 is mounted and connected to the mounting sleeve 61 by the connecting bolt 63.
[0026] As per the specification attached to this utility model Figure 5 As shown, the rotary drive unit 7 for driving the rotation of the rotating shaft includes a drive motor 71, a reducer 72, a drive shaft 73, and a coupling 74. The drive motor 71 drives the reducer 72. During installation, the reducer 72 is mounted on the adjustment frame 351, and the drive motor 71 is mounted on the power input end of the reducer 72 to provide rotational torque to the reducer 72. The drive shaft 73, which drives the rotation of the rotating shaft 5, is mounted on the power output end of the reducer 72. During installation, the drive shaft 73 is connected to the rotating shaft 5 through the coupling 74 and drives the rotating shaft 5 to rotate.
[0027] The installation and use process of the liftable split-type foam scraper structure for the flotation equipment of this utility model is as follows:
[0028] I. The installation process is as follows:
[0029] First, the installer can install the left support 1 and the right support 2 on the external rack. Then, install the left lifting assembly 3, which drives the rotating shaft 5 to rise and fall, on the left support 1, and the right lifting assembly 4, which also drives the rotating shaft 5 to rise and fall, on the right support 2. Since the left lifting assembly 3 and the right lifting assembly 4 have the same structure, the installation process of the right lifting assembly 4 will be explained as an example. Specifically, first, the bearing frame 31 can be installed on the right support 2. Then, the working cylinder 32 can be installed on the bearing frame 31. A telescopic cylinder extension rod 33 can be installed on the working cylinder 32. A connector 34 can be installed on the outer end of the cylinder extension rod 33. The cylinder extension rod 33 can be connected to the adjusting frame 351 in the rotating shaft support 35 through the connector 34. A bearing support 352 can be installed on the adjusting frame 351, and a support bearing 353 can be installed on the bearing support 352. Meanwhile, to ensure smooth movement during the lifting and falling adjustment process of the rotating shaft support 35... To ensure stability, a guide rail 36 is installed on the bearing frame 31, and a slider is slidably engaged on the guide rail 36. The adjusting frame 351 in the rotating shaft support 35 is connected to the slider. After the above installation is completed, the split scraper assembly 6 is installed. First, the mounting sleeve 61 is fitted onto the rotating shaft 5 through the through hole and locked to the rotating shaft 5 by the locking bolt 62. The scraper body 64 for scraping off flotation foam is installed on the outer periphery of the mounting sleeve 61. The scraper body 64 is installed together with the mounting sleeve 61 by the connecting bolt 63. Then, the rotating shaft 5 is assembled on the support bearing 353. Finally, the rotating shaft drive unit 7 is installed. Specifically, the reducer 72 is installed on the adjusting frame 351, and the drive motor 71 is installed on the power input end of the reducer 72. The drive shaft 73 is installed on the power output end of the reducer 72 and connected to the rotating shaft 5 by the coupling 74. Thus, the installation process of this utility model is completed.
[0030] II. The specific work process is as follows:
[0031] In practical use, when the flotation liquid level decreases, the contact between the scraper body 64 and the flotation foam decreases. At this time, the operator can control the working cylinder 32 in the left lifting group 3 and the right lifting group 4 to start. The working cylinder 32 controls the cylinder extension rod 33 to extend and move downward. At the same time, the cylinder extension rod 33 drives the rotating shaft support part 35 to move downward through the connector 34. When the rotating shaft support part 35 moves downward, it will drive the rotating shaft 5 and the rotating shaft drive part 7 mounted on it to move downward. At this time, the split scraper assembly 6 mounted on the rotating shaft 5, together with the scraper body 64, moves downward, and the scraper body 64 increases its contact with the flotation foam. The power system of this utility model is that the drive motor 71 drives the reducer 72 to rotate, the reducer 72 drives the drive shaft 73 to rotate, and the drive shaft 73 drives the rotating shaft 5 and the split scraper assembly 6 (and the scraper body 64) on it through the coupling 74. The rotating scraper body 64 contacts the flotation foam and scrapes the flotation foam away from the flotation cell during rotation; the above shows and describes the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.
Claims
1. A liftable, split-type foam scraper structure for flotation equipment, characterized in that, It includes a left support (1), a right support (2), a left lifting assembly (3), a right lifting assembly (4), a rotating shaft (5), a split scraper assembly (6), and a rotating shaft drive unit (7); A left lifting assembly (3) is installed on the left support (1), and the left lifting assembly (3) is connected to the left support (1) by bolts; a right lifting assembly (4) is installed on the right support (2), and the right lifting assembly (4) is connected to the right support (2) by bolts. A rotating shaft (5) is provided on the left lifting group (3) and the right lifting group (4) to drive the split scraper assembly (6) to rotate. The split scraper assembly (6) is installed on the rotating shaft (5) by bolts for flotation and scraping of flotation foam. A rotating shaft drive unit (7) is provided at one end of the rotating shaft (5) to drive the rotating shaft (5) to rotate.
2. The liftable split-type foam scraper structure for flotation equipment according to claim 1, characterized in that, The left lifting group (3) and the right lifting group (4) have the same structure. They both include a support frame (31), a working cylinder (32), a cylinder telescopic rod (33), a connector (34), and a rotating shaft support (35). The working cylinder (32) is installed on the support frame (31). A telescopic cylinder telescopic rod (33) is installed on the working cylinder (32). A connector (34) is provided at the outer end of the cylinder telescopic rod (33). The cylinder telescopic rod (33) is connected to the rotating shaft support (35) through the connector (34).
3. The liftable split-type foam scraper structure for flotation equipment according to claim 2, characterized in that, A guide rail (36) is provided on the bearing frame (31). The guide rail (36) is connected to the bearing frame (31) by bolts. A slider is slidably engaged on the guide rail (36). The rotating shaft support (35) is connected to the slider.
4. The liftable split-type foam scraper structure for flotation equipment according to claim 2, characterized in that, The rotating shaft support (35) includes an adjustment frame (351), a bearing support (352), and a support bearing (353); the adjustment frame (351) is mounted on the slider, the bearing support (352) is mounted on the adjustment frame (351), and the support bearing (353) is mounted on the bearing support (352).
5. The liftable split-type foam scraper structure for flotation equipment according to claim 1, characterized in that, The split scraper assembly (6) includes a mounting sleeve (61), a locking bolt (62), a connecting bolt (63), and a scraper body (64). The mounting sleeve (61) has a through hole, which is fitted onto the rotating shaft (5) and connected to the rotating shaft (5) by the locking bolt (62). A scraper body (64) for scraping away foam is provided on the outer periphery of the mounting sleeve (61), and the scraper body (64) is connected to the mounting sleeve (61) by the connecting bolt (63).
6. The liftable split-type foam scraper structure for flotation equipment according to claim 4, characterized in that, The rotary shaft drive unit (7) includes a drive motor (71), a reducer (72), a drive shaft (73), and a coupling (74). The reducer (72) is mounted on an adjusting frame (351), and the drive motor (71) is mounted on the power input end of the reducer (72). The drive shaft (73) is mounted on the power output end of the reducer (72), and the drive shaft (73) is connected to the rotary shaft (5) through the coupling (74).