Flotation machine rotating shaft
By attaching a PP pipe to the rotating shaft of the flotation machine and setting a limiting groove and an inner protrusion, combined with bearing connection and epoxy resin coating, the corrosion and wear problems of the rotating shaft are solved, achieving higher stability and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUMADIAN BOYUE OPTOELECTRONICS CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-19
AI Technical Summary
The rotating shaft of existing flotation machines is susceptible to corrosion and wear during use, resulting in a shortened service life. Furthermore, the relative rotation of the plastic tube and the rotating shaft affects stability.
A PP tube is fitted onto the rotating shaft body, and a limiting groove is opened on its side. An inner protrusion is set on the inner side to prevent relative rotation between the sleeve and the rotating shaft. At the same time, a mounting seat is set directly below the rotating shaft and connected by a bearing. An epoxy resin coating is sprayed on the outer side to improve corrosion resistance.
It improves the corrosion resistance and stability of the rotating shaft, and extends its service life.
Smart Images

Figure CN224253081U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of flotation machine technology, and in particular relates to a flotation machine rotating shaft. Background Technology
[0002] Flotation machines are essential equipment in mineral processing and other industries for mineral separation. Their working principle utilizes the differences in the physicochemical properties of mineral surfaces. By adding reagents, aerating, and stirring the slurry, the target mineral adheres to the air bubbles, thus achieving separation from gangue minerals. The rotating shaft, as the core component of the flotation machine's agitation mechanism, directly affects the machine's efficiency and stability. During flotation, the slurry has a certain degree of corrosiveness and abrasiveness, making the rotating shaft susceptible to corrosion and wear, leading to a shortened service life.
[0003] Currently, most flotation machines isolate the slurry and improve its corrosion resistance by attaching a plastic tube to the rotating shaft of the flotation machine. However, in actual use, the plastic tube will rotate relative to the rotating shaft of the flotation machine, which will affect normal use. Moreover, the stability of the rotating shaft of the flotation machine when driving the impeller is poor, which will further affect the normal operation of the flotation machine. Utility Model Content
[0004] To address the problems existing in the prior art, this utility model provides a flotation machine rotating shaft. By attaching a sleeve (made of PP pipe) to the rotating shaft body, the corrosion resistance of the rotating shaft body to mortar is improved. By creating a limiting groove on the side of the rotating shaft body and providing an inner protrusion on the inside of the sleeve that engages with the limiting groove, relative rotation between the sleeve and the rotating shaft body can be effectively prevented, thus improving the stability between the sleeve and the rotating shaft body. By providing a mounting base directly below the rotating shaft body and creating a groove on the mounting base, and by rotatably connecting the bottom end of the rotating shaft body to the groove via a bearing, the stability of the rotating shaft body during use is effectively improved.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A flotation machine rotary shaft includes a rotary shaft body and a mounting base. The upper end of the rotary shaft body has a mounting portion, and a sleeve (PP pipe) is fitted onto the side of the rotary shaft body. At least three limiting grooves are formed on the side of the rotary shaft body, and these grooves are equidistantly arranged around the central axis of the rotary shaft body. An inner protrusion, fitted into the limiting groove, is provided on the inner side of the sleeve. The mounting base is located directly below the rotary shaft body, and a mounting hole is formed on the outer side of the bottom end of the mounting base. A groove is formed on the upper side of the mounting base. The bottom end of the rotary shaft body is rotatably connected to the groove via a bearing. A shaft sealing ring, which mates and seals with the mounting base, is fitted onto the rotary shaft body. A limiting ring is detachably installed on the rotating shaft body via fastening bolts. The limiting ring engages with the upper end of the sleeve. By fitting the sleeve, which is made of PP pipe, onto the rotating shaft body, the corrosion resistance of the rotating shaft body to mortar is improved. By creating a limiting groove on the side of the rotating shaft body and providing an inner protrusion on the inside of the sleeve that engages with the limiting groove, relative rotation between the sleeve and the rotating shaft body can be effectively prevented, thus improving the stability between the sleeve and the rotating shaft body. By providing a mounting base directly below the rotating shaft body and creating a groove on the mounting base, and by rotatably connecting the bottom end of the rotating shaft body to the groove via a bearing, the stability of the rotating shaft body during use is effectively improved.
[0007] Furthermore, the outer side of the rotating shaft body is coated with an anti-corrosion layer, which is an epoxy resin coating. By coating the outer side of the rotating shaft body with an anti-corrosion layer, and the anti-corrosion layer being an epoxy resin coating, the corrosion resistance of the rotating shaft body is further improved, and the service life of the rotating shaft body is increased.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: By sleeved onto the rotating shaft body, and the sleeve being a PP pipe, the corrosion resistance of the rotating shaft body to mortar is improved; by opening a limiting groove on the side of the rotating shaft body and setting an inner protrusion that engages with the limiting groove on the inner side of the sleeve, relative rotation between the sleeve and the rotating shaft body can be effectively prevented, thus improving the stability between the sleeve and the rotating shaft body; by setting a mounting base directly below the rotating shaft body and opening a groove on the mounting base, and by rotatably connecting the bottom end of the rotating shaft body to the groove through a bearing, the stability of the rotating shaft body during use is effectively improved; by spraying an anti-corrosion layer on the outside of the rotating shaft body, and the anti-corrosion layer being an epoxy resin coating, the corrosion resistance of the rotating shaft body is further improved, thus extending the service life of the rotating shaft body. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model.
[0010] Figure 2 This is a schematic diagram of the connection structure between the rotating shaft body and the sleeve of this utility model.
[0011] In the figure: 1 Rotary shaft body, 2 Mounting part, 3 Mounting seat, 4 Sleeve, 5 Mounting hole, 6 Groove, 7 Bearing, 8 Shaft sealing ring, 9 Fastening bolt, 10 Limiting ring, 11 Limiting groove, 12 Inner protrusion. Detailed Implementation
[0012] 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, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0013] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example
[0014] See appendix Figure 1-2 As shown, a flotation machine rotating shaft includes a rotating shaft body 1 and a mounting base 3. The upper end of the rotating shaft body 1 is provided with a mounting part 2, and a sleeve 4 is fitted onto the side of the rotating shaft body 1. The sleeve 4 is a PP pipe. At least three limiting grooves 11 are formed on the side of the rotating shaft body 1, and the limiting grooves 11 are arranged in an equidistant array around the central axis of the rotating shaft body 1. An inner protrusion 12 is provided on the inner side of the sleeve 4, which engages with the limiting grooves 11. The mounting base 3 is located directly below the rotating shaft body 1. A mounting hole 5 is formed on the outer side of the bottom end of the mounting base 3, and a groove 6 is formed on the upper side of the mounting base 3. The bottom end of the rotating shaft body 1 is rotatably connected to the groove 6 via a bearing 7. A shaft sealing ring 8 is fitted onto the rotating shaft body 1 and is sealed to the mounting base 3. A limiting ring 10 can be detachably installed via the tightening bolt 9. The limiting ring 10 engages with the upper end of the sleeve 4. By sleeve 4, which is made of PP pipe, the corrosion resistance of the rotating shaft body 1 to mortar is improved. By opening a limiting groove 11 on the side of the rotating shaft body 1 and setting an inner protrusion 12 that engages with the limiting groove 11 on the inner side of the sleeve 4, relative rotation between the sleeve 4 and the rotating shaft body 1 can be effectively prevented, thus improving the stability between the sleeve 4 and the rotating shaft body 1. By setting a mounting base 3 directly below the rotating shaft body 1 and opening a groove 6 on the mounting base 3, and rotatably connecting the bottom end of the rotating shaft body 1 to the groove 6 via a bearing 7, the stability of the rotating shaft body 1 during use is effectively improved.
[0015] The outer side of the rotating shaft body 1 is coated with an anti-corrosion layer, which is an epoxy resin coating. By spraying an anti-corrosion layer on the outer side of the rotating shaft body 1, and the anti-corrosion layer is an epoxy resin coating, the corrosion resistance of the rotating shaft body 1 is further improved, and the service life of the rotating shaft body 1 is increased.
[0016] Working principle: By setting a mounting base 3 directly below the rotating shaft body 1 and opening a groove 6 on the mounting base 3, and rotatably connecting the bottom end of the rotating shaft body 1 to the groove 6 via a bearing 7, the stability of the rotating shaft body 1 during use is effectively improved. The mounting hole 5 facilitates the fixing of the mounting base 3. By sleeve 4, which is made of PP pipe, on the rotating shaft body 1, the corrosion resistance of the rotating shaft body 1 to mortar is improved. By opening a limiting groove 11 on the side of the rotating shaft body 1 and setting an inner protrusion 12 that fits and engages with the limiting groove 11 on the inner side of the sleeve 4, relative rotation between the sleeve 4 and the rotating shaft body 1 can be effectively prevented, improving the stability between the sleeve 4 and the rotating shaft body 1. By spraying an anti-corrosion layer, which is an epoxy resin coating, on the outside of the rotating shaft body 1, the corrosion resistance of the rotating shaft body 1 is further improved, and the service life of the rotating shaft body 1 is extended.
[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.
[0018] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A flotation machine rotating shaft, comprising a rotating shaft body and a mounting seat, an upper end of the rotating shaft body is provided with a mounting portion, and a sleeve pipe is sleeved on a side surface of the rotating shaft body, characterized in that: The sleeve is a PP pipe. At least three limiting grooves are provided on the side of the rotating shaft body. The limiting grooves are arranged in an equidistant array around the central axis of the rotating shaft body. The inner side of the sleeve is provided with an inner protrusion that fits and engages with the limiting groove. A mounting seat is provided directly below the rotating shaft body. A mounting hole is provided on the outer side of the bottom end of the mounting seat. A groove is provided on the upper side of the mounting seat. The bottom end of the rotating shaft body is rotatably connected to the groove through a bearing. A shaft sealing ring is sleeved on the rotating shaft body and is sealed and connected with the mounting seat. A limiting ring is detachably installed on the rotating shaft body through fastening bolts. The limiting ring is in contact with the upper end of the sleeve.
2. A rotating shaft for a flotation machine according to claim 1, characterized in that: The outer side of the rotating shaft body is coated with an anti-corrosion layer, which is an epoxy resin coating.