Improved center pivot and center pivot cage with automatic rake

Abstract

The utility model discloses an improved type center rotary mechanism and center rotary cage take automatic rake device, including thickener pool body, the outside fixed installation platform of thickener pool body, the inside setting of thickener pool body has rotary mechanism, the rotary mechanism includes motor mounting seat, speed reducer motor A, drive link, drive rotary cage and limit support, the bottom of installation platform is provided with the distributing mechanism, the bottom of drive rotary cage is provided with the scraping mechanism, the scraping mechanism includes installation sliding sleeve, main rake frame, vice rake frame, the inner wall of drive rotary cage is provided with the lifting mechanism, in the rotary process, through limit support to drive rotary cage and limit support, avoid appearing drive rotary cage and offset situation, guarantee the stability of device operation, through lifting mechanism according to the height of rake frame of thickener's operation situation and adjust, keep the scraping collection resistance of rake frame at reasonable level, avoid causing damage to rake frame, prevent the emergence of press rake accident.

Description

Technical Field

[0001] This utility model relates to the field of thickener technology, and in particular to an improved central rotary mechanism and a central rotating cage with an automatic rake lifting device. Background Technology

[0002] A thickener is an important piece of equipment used for solid-liquid separation, operating on the principle of gravity sedimentation. When the slurry enters the tank through the feed pipe, solid particles gradually settle to the bottom under gravity, forming a dense sediment layer. A rotating rake continuously scrapes away this sediment and transports it to a central discharge funnel. Simultaneously, the clarified liquid flows out from an overflow weir at the top of the tank, making it widely used in mineral processing.

[0003] Compared with existing technologies, the existing center-driven thickeners have two main problems: First, the rotating rod is prone to deviation during the drum drive, which affects the accuracy of the rake frame operation and the stability of the equipment; second, traditional rake frames are mostly fixed structures and cannot be adjusted in height as needed. When the sediment concentration is too high or the feed rate is too large, the scraping resistance of the rake frame increases, which can easily lead to rake frame damage, rake crushing accidents, and reduced service life of the thickener. To address these issues, we propose an improved center-rotating mechanism and a center drum with an automatic rake lifting device. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an improved central rotary mechanism and a central rotating cage belt automatic rake lifting device.

[0005] The present invention solves its technical problem through the following technical solution: It includes a thickener tank, an installation platform fixed to the outside of the thickener tank, a rotating mechanism inside the thickener tank, a motor mounting base, the motor mounting base being fixed to the top of the installation platform by bolts, a reduction motor A being fixed to the top of the motor mounting base by bolts, a drive rod being provided at the output end of the reduction motor A, a drive rotating cage being fixed to the outside of the drive rod, a limit bracket being rotatably connected to the outside of the drive rotating cage, the limit bracket being fixedly connected to the thickener tank, a material distribution mechanism being provided at the bottom of the installation platform, and a scraping mechanism being provided at the bottom of the drive rotating cage. The scraping mechanism includes a mounting sleeve that is slidably connected to the outside of the drive drum. A pair of main rake frames are fixed to the outside of the mounting sleeve, and a pair of auxiliary rake frames are fixed to the outside of the mounting sleeve near the main rake frames. A lifting mechanism is provided on the inner wall of the drive drum, and a material guiding mechanism is provided at the bottom of the lifting mechanism.

[0006] As a further improvement of this utility model, a discharge pipe is fixed at the bottom of the thickener tank.

[0007] As a further improvement of this utility model, a control cabinet is provided on the top of the installation platform.

[0008] As a further embodiment of this utility model: the material distribution mechanism includes a flow stabilizer cylinder, which is fixed to the bottom of the installation platform by bolts. An inlet pipe is fixed to the outside of the flow stabilizer cylinder, and a material distribution plate is fixed to the bottom of the flow stabilizer cylinder.

[0009] As a further improvement of this utility model, a limit ring is fixed near the outer side of the mounting sleeve of the drive rotating cage.

[0010] As a further embodiment of this utility model: the lifting mechanism includes a mounting plate, which is fixed to the inner wall of the drive rotating cage by bolts. A reduction motor B is fixed to the top of the mounting plate. A lead screw is provided at the output end of the reduction motor B. A sliding seat is provided on the outside of the lead screw. A connecting block is fixed on the outside of the sliding seat. The connecting block is fixedly connected to the mounting sliding sleeve.

[0011] As a further embodiment of this utility model: the material guiding mechanism includes a mounting beam, which is fixed to the inner wall of the drive drum by bolts. A drive motor is fixed to the top of the mounting beam, and a drive shaft is provided at the output end of the drive motor. A material guiding blade is fixed to the outside of the drive shaft.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. The drive rod is driven to rotate by the geared motor A, which in turn drives the drive drum to rotate. The rotation of the drive drum drives the mounting sleeve to rotate, which in turn drives the main rake frame and the auxiliary rake frame to rotate. The main rake frame and the auxiliary rake frame work together to scrape the sediment in the slurry, thus realizing the driving operation of the scraping mechanism. During the process, the drive drum is limited and supported by the limit bracket to prevent the drive drum from deviating, thereby stabilizing the operation of the rake frame and ensuring the stability of the device operation. 2. When the height of the rake frame needs to be adjusted, the lifting mechanism drives the mounting sleeve to move up and down, which in turn drives the main rake frame and the auxiliary rake frame to move up and down, thereby realizing the height adjustment of the rake frame. The height of the rake frame can be adjusted according to the operation of the thickener, keeping the scraping resistance of the rake frame at a reasonable level, avoiding damage to the rake frame, preventing rake crushing accidents, and improving the service life of the thickener. Attached Figure Description

[0013] Figure 1 A schematic diagram of an isometric structure according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of an isometric sectional view of a structure according to an embodiment of the present invention is shown; Figure 3 The present invention provides an embodiment of the present invention. Figure 2 Enlarged structural diagram of part A in the middle; Figure 4 A schematic diagram of the front cross-sectional structure according to an embodiment of the present invention is shown; Figure 5 The present invention provides an embodiment of the present invention. Figure 4 Enlarged structural diagram of section B in the middle; Figure 6 A partial structural schematic diagram according to an embodiment of the present invention is shown.

[0014] Legend: 100 Thickener tank, 110 Discharge pipe, 120 Mounting platform, 130 Control cabinet, 210 Motor mounting base, 220 Gear motor A, 230 Drive rod, 240 Drive drum, 250 Limit bracket, 310 Flow stabilizer, 320 Feed pipe, 330 Distributor plate, 410 Mounting sleeve, 411 Limit ring, 420 Main rake frame, 430 Auxiliary rake frame, 510 Mounting plate, 520 Gear motor B, 521 Lead screw, 530 Sliding seat, 540 Connecting block, 610 Mounting beam, 620 Drive motor, 630 Drive shaft, 640 Guide blade. Detailed Implementation

[0015] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Please see Figure 1-6 This utility model provides a technical solution: it includes a thickener tank 100, a discharge pipe 110 fixed at the bottom of the thickener tank 100, an installation platform 120 fixed on the outside of the thickener tank 100, a control cabinet 130 on the top of the installation platform 120, a rotary mechanism inside the thickener tank 100, the rotary mechanism including a motor mounting base 210, a reduction motor A220, a drive rod 230 and a drive rotating cage 240, a limit bracket 250 rotatably connected to the outside of the drive rotating cage 240, the limit bracket 250 being fixedly connected to the thickener tank 100, a material distribution mechanism at the bottom of the installation platform 120, and a scraping mechanism at the bottom of the drive rotating cage 240; The scraping mechanism includes a mounting sleeve 410, which is slidably connected to the outside of the drive drum 240. A pair of main rake frames 420 are fixed to the outside of the mounting sleeve 410, and a pair of auxiliary rake frames 430 are fixed to the outside of the mounting sleeve 410 near the main rake frames 420. A lifting mechanism is provided on the inner wall of the drive drum 240, and a material guiding mechanism is provided at the bottom of the lifting mechanism. A rotation mechanism and a scraping mechanism are provided. A reduction motor A220 drives a drive rod 230 to rotate, which in turn drives the drive drum 240 to rotate. The rotation of the drive drum 240 drives the mounting sleeve 410 to rotate, which in turn drives the main rake frames 420 and auxiliary rake frames 430 to rotate. The auxiliary rake frame 430 works in conjunction with the slurry to scrape away sediment, driving the scraping mechanism. During this process, the drive drum 240 is limited and supported by the limiting bracket 250 to prevent it from shifting, thus ensuring the stability of the rake frame operation and the overall stability of the device. When the height of the rake frame needs to be adjusted, the lifting mechanism moves the mounting sleeve 410 up and down, which in turn moves the main rake frame 420 and the auxiliary rake frame 430 up and down, allowing for height adjustment. This adjustment can be made according to the thickener's operating conditions, maintaining the scraping resistance at a reasonable level, preventing damage to the rake frame, avoiding rake crushing accidents, and extending the thickener's service life.

[0019] Specifically, the material distribution mechanism includes a flow stabilizer 310, which is fixed to the bottom of the mounting platform 120 by bolts. An inlet pipe 320 is fixed to the outside of the flow stabilizer 310, and a material distribution plate 330 is fixed to the bottom of the flow stabilizer 310. With the material distribution mechanism, the slurry enters the flow stabilizer 310 through the inlet pipe 320, and the material distribution plate 330 disperses the slurry, so as to evenly introduce the slurry into the thickener tank 100.

[0020] Specifically, a limit ring 411 is fixed on the outer side of the drive rotating cage 240 near the mounting sleeve 410; by setting the limit ring 411, the sliding of the mounting sleeve 410 is limited and blocked, preventing the mounting sleeve 410 from moving too far and ensuring the stability of the lifting operation.

[0021] Specifically, the lifting mechanism includes a mounting plate 510, which is fixed to the inner wall of the drive drum 240 by bolts. A reduction motor B520 is fixed to the top of the mounting plate 510. A lead screw 521 is provided at the output end of the reduction motor B520. A sliding seat 530 is provided on the outside of the lead screw 521. A connecting block 540 is fixed on the outside of the sliding seat 530. The connecting block 540 is fixedly connected to the mounting sleeve 410. By setting up the lifting mechanism, the main rake frame 420 and the auxiliary rake frame 430 are moved up and down, thereby realizing the height adjustment of the rake frame. The height of the rake frame can be adjusted according to the operation of the thickener, keeping the scraping resistance of the rake frame at a reasonable level, avoiding damage to the rake frame, preventing rake crushing accidents, and improving the service life of the thickener.

[0022] Specifically, the material guiding mechanism includes a mounting beam 610, which is fixed to the inner wall of the drive rotating cage 240 by bolts. A drive motor 620 is fixed to the top of the mounting beam 610, and a drive shaft 630 is provided at the output end of the drive motor 620. A material guiding blade 640 is fixed to the outside of the drive shaft 630. By providing the material guiding mechanism, during the discharge operation, the drive motor 620 drives the drive shaft 630 to rotate, and the rotation of the drive shaft 630 drives the material guiding blade 640 to rotate. The material guiding blade 640 assists in guiding the sediment, which can accelerate the discharge of the sediment.

[0023] Working Principle: During operation, the slurry is controlled by the control cabinet 130. It enters the flow stabilizer 310 through the feed pipe 320 and is dispersed by the distribution plate 330, evenly guiding it into the thickener tank 100. The geared motor A220 drives the drive rod 230 to rotate, which in turn drives the drive drum 240. This rotation of the drive drum 240, in turn, drives the mounting sleeve 410, which in turn drives the main rake frame 420 and the auxiliary rake frame 430. The main rake frame 420 and the auxiliary rake frame 430 work together to scrape away sediment from the slurry, thus driving the scraping mechanism. During this process, the limit bracket 250 provides limiting support for the drive drum 240 to prevent it from shifting, thereby ensuring proper material handling. The stable operation of the rake frame is achieved by discharging the collected sediment through the discharge pipe 110. When the height of the rake frame needs to be adjusted, the reducer motor B520 drives the lead screw 521 to rotate. The rotation of the lead screw 521 drives the sliding seat 530 to move up and down. The sliding seat 530 drives the mounting sleeve 410 to move through the connecting block 540, which in turn drives the main rake frame 420 and the auxiliary rake frame 430 to move up and down, thereby achieving height adjustment of the rake frame. The height of the rake frame can be adjusted according to the operation of the thickener to keep the scraping resistance of the rake frame at a reasonable level. During the discharge operation, the drive motor 620 drives the drive shaft 630 to rotate. The rotation of the drive shaft 630 drives the guide blade 640 to rotate. The guide blade 640 assists in guiding the sediment, which can accelerate the discharge of sediment.

[0024] The motor involved in the embodiments, its matching control system, electromagnetic switch and pipeline circuit can also be provided by the manufacturer. Apart from that, the power supply module, circuit and electronic components and control module involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0025] Although the present invention discloses embodiments and accompanying drawings, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and accompanying drawings.

Claims

1. An improved central rotary mechanism and a central rotating cage belt automatic rake lifting device, characterized in that, The system includes a thickener tank (100), an installation platform (120) fixed to the outside of the thickener tank (100), a rotary mechanism inside the thickener tank (100), a motor mounting base (210) fixed to the top of the installation platform (120) by bolts, a geared motor A (220) fixed to the top of the motor mounting base (210) by bolts, a drive rod (230) at the output end of the geared motor A (220), a drive rotating cage (240) fixed to the outside of the drive rod (230), a limit bracket (250) rotatably connected to the outside of the drive rotating cage (240), the limit bracket (250) fixedly connected to the thickener tank (100), a material distribution mechanism at the bottom of the installation platform (120), and a scraping mechanism at the bottom of the drive rotating cage (240). The scraping mechanism includes a mounting sleeve (410), which is slidably connected to the outside of the drive drum (240). A pair of main rake frames (420) are fixed to the outside of the mounting sleeve (410), and a pair of auxiliary rake frames (430) are fixed to the outside of the mounting sleeve (410) near the main rake frames (420). A lifting mechanism is provided on the inner wall of the drive drum (240), and a material guiding mechanism is provided at the bottom of the lifting mechanism.

2. The improved central rotary mechanism and the central rotating cage belt automatic rake lifting device according to claim 1, characterized in that, The bottom of the thickener tank (100) is fixed with a discharge pipe (110).

3. The improved central rotary mechanism and the central rotating cage with automatic rake lifting device according to claim 1, characterized in that, A control cabinet (130) is installed on the top of the installation platform (120).

4. The improved central rotary mechanism and the central rotating cage with automatic rake lifting device according to claim 1, characterized in that, The material distribution mechanism includes a flow stabilizer (310), which is fixed to the bottom of the mounting platform (120) by bolts. An inlet pipe (320) is fixed to the outside of the flow stabilizer (310), and a material distribution plate (330) is fixed to the bottom of the flow stabilizer (310).

5. The improved central rotary mechanism and the central rotating cage belt automatic rake lifting device according to claim 1, characterized in that, The drive cylinder (240) is fixed with a limit ring (411) near the outer side of the mounting sleeve (410).

6. The improved central rotary mechanism and the central rotating cage with automatic rake lifting device according to claim 1, characterized in that, The lifting mechanism includes a mounting plate (510), which is fixed to the inner wall of the drive rotating cage (240) by bolts. A geared motor B (520) is fixed to the top of the mounting plate (510). A lead screw (521) is provided at the output end of the geared motor B (520). A sliding seat (530) is provided on the outside of the lead screw (521). A connecting block (540) is fixed on the outside of the sliding seat (530). The connecting block (540) is fixedly connected to the mounting sleeve (410).

7. The improved central rotary mechanism and the central rotating cage with automatic rake lifting device according to claim 1, characterized in that, The material guiding mechanism includes a mounting beam (610), which is fixed to the inner wall of the drive drum (240) by bolts. A drive motor (620) is fixed to the top of the mounting beam (610), and a drive shaft (630) is provided at the output end of the drive motor (620). A material guiding blade (640) is fixed to the outside of the drive shaft (630).

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