Rotary distributor

Abstract

The utility model discloses a rotary distributor, which belongs to the technical field of distributors, and comprises a bottom plate, a lower upright post is fixedly connected onto the bottom plate, a height adjusting mechanism is arranged on the lower upright post, and an upper upright post is arranged at the top end of the height adjusting mechanism. According to the utility model, the hopper is supported by adopting the vertical shaft structure, the vertical and transverse occupied space of the chute in the material transfer process is saved, the floor height is reduced, the engineering design cost is reduced, and meanwhile, the friction resistance in the rotation process is reduced by utilizing the structures such as the rotating bearing, the upper radial bearing and the thrust bearing; a band-type brake motor is used for driving a transmission shaft and a first gear to rotate, and a seamless steel pipe, an upper shaft sleeve, an upper flat welding steel flange, a supporting frame and a hopper are driven to rotate through meshing transmission between the first gear and a second gear, so that the hopper can distribute materials in a 360-degree omnibearing mode, and the problem that a chute can only conduct fixed-point feeding is solved.

Description

Technical Field

[0001] This utility model relates to the field of feeder technology, and more specifically, to a rotary feeder. Background Technology

[0002] In coal mines, the joints of belt conveyors typically use mining transfer chutes to guide and redirect the transported coal. Therefore, the transfer chutes are a very important part of the belt conveyor system, and their working condition directly determines whether the underground belt conveyor can operate normally.

[0003] A search revealed that invention patent CN111674891A discloses a material distributor, comprising a feeding component, a discharging assembly, and a rotating distributing component. The discharging assembly has several circumferentially distributed discharge ports. The rotating distributing component rotates in conjunction with the discharging assembly. A cover is provided outside the rotating distributing component, and the rotating distributing component rotates in conjunction with the feeding component. The rotating distributing component is characterized by a rotating air duct that rotates in conjunction with the discharge chamber; several high-pressure air source interfaces are provided on the cover or the feeding component, providing high-pressure gas to the rotating air duct, and these interfaces rotate in conjunction with the rotating air duct. This patent enables continuous, uninterrupted, uniform, residue-free, and automatically cleaned material distribution with high precision. However, the above patent still has the following shortcomings: although the direction of material distribution can be adjusted, it can only distribute materials in a specific direction, which is not very practical; and it is not convenient to adjust the height of the hopper. At the same time, the support bracket for the hopper is large in size and requires a large amount of space. Therefore, we have proposed a rotating material distributor. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a rotary feeder.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A rotary feeder includes a base plate, a lower column fixedly connected to the base plate, a height adjustment mechanism on the lower column, an upper column at the top of the height adjustment mechanism, a rotary bearing fixedly sleeved on the outer side of the upper column, a seamless steel pipe fixedly sleeved on the outer side of the rotary bearing, a drive mechanism on the outer side of the upper column, a middle flat welded steel flange fixedly sleeved on both the top and bottom surfaces of the seamless steel pipe, a lower radial bearing fixedly sleeved on the side of the bottom end of the upper column, a lower bushing fixedly sleeved on the outer side of the lower radial bearing, a lower flat welded steel flange fixedly sleeved on both the top and bottom ends of the outer side of the lower bushing, a through-cover flange fixedly sleeved on the outer side of the upper column, and a space between the through-cover flange and the upper column. The structure includes a felt cover, a plurality of first bolt combinations fixedly installed between the cover flange and a lower flat welded steel flange, a plurality of second bolt combinations fixedly installed between the other lower flat welded steel flange and a middle flat welded steel flange, an upper radial bearing fixedly sleeved on the outer side of the top of the upper column, an upper bushing fixedly sleeved on the outer side of the upper radial bearing, upper flat welded steel flanges fixedly sleeved at both the top and bottom of the outer side of the upper bushing, a plurality of third bolt combinations fixedly installed between one upper flat welded steel flange and another middle flat welded steel flange, a thrust bearing provided at the top of the upper column and inside the upper radial bearing, a support frame installed at the top of the other upper flat welded steel flange, and a hopper fixedly connected to the top of the support frame.

[0007] As a preferred embodiment of this utility model, the height adjustment mechanism includes a square groove formed on the top surface of the lower column, an electric hydraulic cylinder fixedly installed at the bottom of the inner cavity of the square groove, a square column fixedly connected to the top of the electric hydraulic cylinder, the top of the square column extending to the top of the lower column and connected to the bottom of the upper column, and the side of the square column fitting against the inner wall of the square groove.

[0008] As a preferred embodiment of this utility model, the driving mechanism includes a mounting bracket fixedly sleeved on the outside of the upper column. A brake motor is fixedly mounted on the bottom surface of the mounting bracket. The output shaft of the brake motor extends to the top of the mounting bracket and is fixedly connected to a transmission shaft. A first gear is fixedly sleeved on the outside of the top end of the transmission shaft. A second gear is meshed with the side of the first gear. The second gear is fixedly sleeved on the outside of the seamless steel pipe.

[0009] As a preferred embodiment of this utility model, the top surface of the base plate is fixedly connected with a plurality of reinforcing ribs, and the side portions of the plurality of reinforcing ribs are respectively attached to the side portions of the lower column.

[0010] As a preferred embodiment of this utility model, a plurality of fourth bolt combinations are fixedly installed between the support frame and another upper flat welded steel flange, and an oil can is provided on the support frame.

[0011] As a preferred embodiment of this utility model, a sleeve is fixedly sleeved on the side of the bottom end of the upper column, the bottom end of the sleeve extends to the outside of the lower column, and the inner wall of the sleeve is in contact with the outer side of the lower column.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] (1) In this utility model, by using the combined use of structures such as the lower column, height adjustment mechanism, upper column, rotating bearing, seamless steel pipe, upper radial bearing, upper bushing, and support frame, the hopper is supported by a vertical shaft structure, which saves the vertical and horizontal space occupied by the chute during material transfer, reduces the floor height, and reduces the engineering design cost. At the same time, the rotating bearing, upper radial bearing, thrust bearing and other structures reduce the frictional resistance during rotation. In addition, the brake motor drives the transmission shaft and the first gear to rotate. Through the meshing transmission between the first gear and the second gear, the seamless steel pipe, upper bushing, upper flat welded steel flange, support frame and hopper are driven to rotate, so that the hopper can deliver materials in all directions of 360 degrees, solving the problem that the chute can only deliver materials at fixed points.

[0014] (2) In this utility model, the electric hydraulic cylinder can drive the square column, the upper column and the hopper to move up and down, thereby adjusting the height of the hopper. At the same time, the calculation of the material throwing path is used to locate the position of the rotating distributor. This solves the problems of material loss, dust generation, harm to workers' health and environmental pollution caused by material throwing. It has good practicality. Attached Figure Description

[0015] Figure 1 This is a schematic cross-sectional view of the present invention;

[0016] Figure 2 This is a cross-sectional schematic diagram of the lower column of this utility model;

[0017] Figure 3 This utility model Figure 1 Enlarged diagram of point A in the diagram;

[0018] Figure 4 This utility model Figure 1 Enlarged diagram of point B in the image;

[0019] Figure 5 This is an installation diagram of the present invention;

[0020] Figure 6 This is a cross-sectional schematic diagram of the hopper of this utility model;

[0021] Figure 7 This is a top view of the hopper of this utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the hopper of this utility model;

[0023] Figure 9 This is a parameter table for the material throwing analysis and calculation of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Base plate; 2. Lower column; 3. Height adjustment mechanism; 4. Upper column; 5. Rotary bearing; 6. Seamless steel pipe; 7. Drive mechanism; 8. Through-cover flange; 9. Felt; 10. Lower radial bearing; 11. Lower bushing; 12. Lower flat welded steel flange; 13. First bolt assembly; 14. Second bolt assembly; 15. Middle flat welded steel flange; 16. Upper radial bearing; 17. Upper bushing; 18. Upper flat welded steel flange; 19. Third bolt assembly; 20. Fourth bolt assembly; 21. Thrust bearing; 22. Oil can; 23. Support frame; 24. Hopper; 25. Square channel; 26. Electro-hydraulic cylinder; 27. Square column; 28. Sleeve; 29. ​​Mounting frame; 30. Brake motor; 31. Drive shaft; 32. First gear; 33. Second gear; 34. Reinforcing rib. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," 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 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] 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.

[0029] Example:

[0030] Please see Figures 1-9 A rotating feeder includes a base plate 1, a lower column 2 fixedly connected to the base plate 1, a height adjustment mechanism 3 on the lower column 2, an upper column 4 at the top of the height adjustment mechanism 3, a rotating bearing 5 fixedly sleeved on the outer side of the upper column 4, a seamless steel pipe 6 fixedly sleeved on the outer side of the rotating bearing 5, a drive mechanism 7 on the outer side of the upper column 4, a middle flat welded steel flange 15 fixedly sleeved on both the top and bottom surfaces of the seamless steel pipe 6, a lower radial bearing 10 fixedly sleeved on the side of the bottom end of the upper column 4, a lower bushing 11 fixedly sleeved on the outer side of the lower radial bearing 10, a lower flat welded steel flange 12 fixedly sleeved on both the top and bottom ends of the outer side of the lower bushing 11, a through-cover flange 8 fixedly sleeved on the outer side of the upper column 4, and a felt 9 between the through-cover flange 8 and the upper column 4. Multiple first bolt combinations 13 are fixedly installed between the upper flange 8 and the lower flat welded steel flange 12. Multiple second bolt combinations 14 are fixedly installed between the other lower flat welded steel flange 12 and the middle flat welded steel flange 15. An upper radial bearing 16 is fixedly sleeved on the outer side of the top of the upper column 4. An upper bushing 17 is fixedly sleeved on the outer side of the upper radial bearing 16. An upper flat welded steel flange 18 is fixedly sleeved on both the top and bottom of the outer side of the upper bushing 17. Multiple third bolt combinations 19 are fixedly installed between one upper flat welded steel flange 18 and the other middle flat welded steel flange 15. A thrust bearing 21 is provided on the top of the upper column 4 and inside the upper radial bearing 16. A support frame 23 is installed on the top of the other upper flat welded steel flange 18. A hopper 24 is fixedly connected to the top of the support frame 23.

[0031] In this embodiment, the thrust bearing 21 is a copper rolling bearing, which can increase the service life of the bearing.

[0032] In addition, industrial transfer chutes are commonly used as connecting transfer components between equipment. However, they suffer from severe material spillage, primarily due to improper structural design and positioning. This causes material, after being ejected from the conveyor head, to fail to fall properly into the chute's receiving center; instead, only a portion falls into the chute, while the rest falls outside. To ensure that all material falls into the lower transfer chute during the belt conveyor transfer process, this study analyzes and calculates the severe material spillage problem. It identifies the receiving center of the rotating distributor, determines its positioning and design dimensions, and plots the material spillway trajectory based on the calculation results. The selected calculation parameters are shown in the appendix. Figure 9 ;

[0033] To determine the positioning distance of the rotary distributor, the bottom, center of mass of the material, and top of the material should be selected for analysis and calculation based on the diameter of the belt conveyor's rollers and the belt speed. This yields the material throwing trajectory, calculates the horizontal receiving center of the rotary distributor, and positions the distributor accordingly. During material transfer, the tangent angle at the instant the material leaves the head roller of the belt conveyor varies depending on the selected parameters of the belt speed and head roller diameter, resulting in different points where the material is thrown off the head roller.

[0034] Maximum cross-sectional area of ​​the material: S = area of ​​the upper part S1 + area of ​​the lower part S2;

[0035] To solve the problem of material throwing, the first step is to calculate the material throwing trajectory. The equation of motion for calculating the trajectory is related to factors such as the operating speed of the belt conveyor, the diameter of the head roller, and relevant parameters of the transported material. The equation for the material throwing trajectory is calculated by substituting the designed inclination angle β of the belt conveyor and the belt speed into the equation. The calculation process involves analysis under different conditions to select the appropriate material throwing trajectory.

[0036] Formula for calculating the material throwing angle:

[0037]

[0038] Substituting α into the parabolic equation, we get:

[0039] The horizontal distance from the center of the belt conveyor head pulley to the center of the rotating distributor can be calculated. Therefore, the horizontal positioning of the rotating distributor can be determined so that the parabola can be accurately calculated according to the physical characteristics of the material, thus solving the problem of material loss due to material thrown out of the belt conveyor head during unloading.

[0040] For details, please refer to Figure 1 and Figure 2The height adjustment mechanism 3 includes a square groove 25 opened on the top surface of the lower column 2. An electric hydraulic cylinder 26 is fixedly installed at the bottom of the inner cavity of the square groove 25. A square column 27 is fixedly connected to the top of the electric hydraulic cylinder 26. The top of the square column 27 extends to the top of the lower column 2 and is connected to the bottom of the upper column 4. The side of the square column 27 fits against the inner wall of the square groove 25.

[0041] In this embodiment, the electric hydraulic cylinder 26 is used to drive the square column 27, the upper column 4 and the hopper 24 to move up and down, thereby adjusting the height of the hopper 24. In addition, the stability between the lower column 2 and the upper column 4 is ensured by the fit between the side of the square column 27 and the inner wall of the square groove 25.

[0042] For details, please refer to Figure 1 The drive mechanism 7 includes a mounting bracket 29 fixedly sleeved on the outside of the upper column 4. A brake motor 30 is fixedly mounted on the bottom surface of the mounting bracket 29. The output shaft of the brake motor 30 extends to the top of the mounting bracket 29 and is fixedly connected to a transmission shaft 31. A first gear 32 is fixedly sleeved on the outside of the top of the transmission shaft 31. A second gear 33 is meshed on the side of the first gear 32. The second gear 33 is fixedly sleeved on the outside of the seamless steel pipe 6.

[0043] In this embodiment, the brake motor 30 drives the transmission shaft 31 and the first gear 32 to rotate. The transmission between the first gear 32 and the second gear 33 drives the seamless steel pipe 6, the middle flat welded steel flange 15, the upper flat welded steel flange 18, the upper bushing 17, the support frame 23 and the hopper 24 to rotate, thereby adjusting the direction of material distribution in the hopper 24 by 360 degrees.

[0044] For details, please refer to Figure 2 The top surface of the base plate 1 is fixedly connected with multiple reinforcing ribs 34, and the side parts of the multiple reinforcing ribs 34 are respectively attached to the side of the lower column 2.

[0045] In this embodiment, reinforcing ribs 34 are used to strengthen the connection between the lower column 2 and the base plate 1.

[0046] For details, please refer to Figure 4 Multiple fourth bolt assemblies 20 are fixedly installed between the support frame 23 and another upper flat welded steel flange 18, and an oil can 22 is provided on the support frame 23.

[0047] In this embodiment, a flat welded steel flange 18 and a support frame 23 are connected by a fourth bolt assembly 20. The fourth bolt assembly 20, the third bolt assembly 19, the second bolt assembly 14, and the first bolt assembly 13 are all composed of bolts, hexagonal nuts, and washers. An oil well is provided at the top of the rotating bearing 5, and a spiral-shaped oil passage is designed on the inner wall of the thrust bearing 21 so that the oil in the oil reservoir 22 can enter the rotating bearing 5 through the spiral-shaped oil passage to lubricate the rotating bearing 5, reduce friction during rotation, and facilitate operation.

[0048] For details, please refer to Figure 2 A sleeve 28 is fixedly sleeved on the side of the bottom end of the upper column 4. The bottom end of the sleeve 28 extends to the outside of the lower column 2, and the inner wall of the sleeve 28 fits against the outer side of the lower column 2.

[0049] In this embodiment, the vertical strength between the lower column 2 and the upper column 4 is reinforced by the sleeve 28 to ensure the strength of the material distributor.

[0050] Working principle: In use, firstly, the position of the rotating distributor is calculated and determined according to the material throwing line, and then the electric hydraulic cylinder 26 is started to drive the square column 27 to move up and down. The square column 27 drives the upper column 4, rotating bearing 5, seamless steel pipe 6, upper bushing 17, upper flat welded steel flange 18, support frame 23 and hopper 24 to move up and down, thereby adjusting the height of the hopper 24. Then, the material is put into the hopper 24 by the conveyor. The hopper 24 guides and transports the material. In addition, the brake motor 30 is started to drive the transmission shaft 31 and the first gear 32 to rotate. Through the meshing transmission between the first gear 32 and the second gear 33, the seamless steel pipe 6, upper bushing 17, upper flat welded steel flange 18, support frame 23 and hopper 24 are rotated, thereby adjusting the direction of material distribution in the hopper 24.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A rotating feeder, comprising a base plate (1), characterized in that: A lower column (2) is fixedly connected to the base plate (1). A height adjustment mechanism (3) is provided on the lower column (2). An upper column (4) is provided at the top of the height adjustment mechanism (3). A rotating bearing (5) is fixedly sleeved on the outside of the upper column (4). A seamless steel pipe (6) is fixedly sleeved on the outside of the rotating bearing (5). A drive mechanism (7) is provided on the outside of the upper column (4). The top and bottom surfaces of the seamless steel pipe (6) are both fixedly sleeved. A flat welded steel flange (15) is provided. A lower radial bearing (10) is fixedly sleeved on the side of the bottom end of the upper column (4). A lower bushing (11) is fixedly sleeved on the outside of the lower radial bearing (10). A lower flat welded steel flange (12) is fixedly sleeved on the top and bottom of the outer side of the lower bushing (11). A through-cover flange (8) is fixedly sleeved on the outside of the upper column (4). A felt (9) is provided between the through-cover flange (8) and the upper column (4). Multiple first bolt combinations (13) are fixedly installed between the flange (8) and a lower flat welded steel flange (12), and multiple second bolt combinations (14) are fixedly installed between the other lower flat welded steel flange (12) and a middle flat welded steel flange (15). An upper radial bearing (16) is fixedly sleeved on the outer side of the top of the upper column (4), and an upper bushing (17) is fixedly sleeved on the outer side of the upper radial bearing (16). An upper flat welded steel flange (18) is fixedly sleeved on the top and bottom of the outer side of the upper bushing (17). Multiple third bolt combinations (19) are fixedly installed between one upper flat welded steel flange (18) and another middle flat welded steel flange (15). A thrust bearing (21) is provided on the top of the upper column (4) and inside the upper radial bearing (16). A support frame (23) is installed on the top of the other upper flat welded steel flange (18), and a hopper (24) is fixedly connected to the top of the support frame (23).

2. The rotary feeder according to claim 1, characterized in that: The height adjustment mechanism (3) includes a square groove (25) on the top surface of the lower column (2). An electric hydraulic cylinder (26) is fixedly installed at the bottom of the inner cavity of the square groove (25). A square column (27) is fixedly connected to the top of the electric hydraulic cylinder (26). The top of the square column (27) extends to the top of the lower column (2) and is connected to the bottom of the upper column (4). The side of the square column (27) fits against the inner wall of the square groove (25).

3. A rotary feeder according to claim 1, characterized in that: The drive mechanism (7) includes a mounting bracket (29) fixedly sleeved on the outside of the upper column (4). A brake motor (30) is fixedly mounted on the bottom surface of the mounting bracket (29). The output shaft of the brake motor (30) extends to the top of the mounting bracket (29) and is fixedly connected to a transmission shaft (31). A first gear (32) is fixedly sleeved on the outside of the top end of the transmission shaft (31). A second gear (33) is meshed with the side of the first gear (32). The second gear (33) is fixedly sleeved on the outside of the seamless steel pipe (6).

4. A rotary distributor according to claim 1, characterized in that: The top surface of the base plate (1) is fixedly connected with a plurality of reinforcing ribs (34), and the side portions of the plurality of reinforcing ribs (34) are respectively attached to the side of the lower column (2).

5. A rotary feeder according to claim 1, characterized in that: Multiple fourth bolt assemblies (20) are fixedly installed between the support frame (23) and another upper flat welded steel flange (18), and an oil can (22) is provided on the support frame (23).

6. A rotary feeder according to claim 2, characterized in that: A sleeve (28) is fixedly sleeved on the side of the bottom end of the upper column (4). The bottom end of the sleeve (28) extends to the outside of the lower column (2). The inner wall of the sleeve (28) is in contact with the outer side of the lower column (2).

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