A two-way discharge clearing machine

Abstract

The utility model discloses a kind of two-way discharging clearing machine, comprising: slewing bearing, fixed in the round hole of bin bottom center frame, outer ring outer periphery is equipped with slewing gear, outer ring top is higher than inner ring and is fixed with slewing ring;Discharging slewing cylinder, upper end is coaxially fixed with slewing ring, lower end is rotatably sealed butt joint with fixed discharging cylinder, and be separated into material passing space and equipment installation space by vertical partition plate;Revolute driving device, including two revolute driving hydraulic motor, motor output shaft upper end is equipped with driving pinion, driving pinion is engaged with slewing gear, revolute driving hydraulic motor is connected with the hydraulic pump station located outside bin by reversing valve and oil pipe;Radial beam, inner end head is equipped with vertical baffle and is supported on slewing ring, bottom is supported on bin bottom by roller;First auger, suspension is in the front side of radial beam;Second auger, suspension is in the back side of radial beam.This clearing machine can reliably discharge clearing material of high board material, and efficiency is high, safety is good.

Description

Technical Field

[0001] This utility model relates to a warehouse cleaning machine, and more particularly to a bidirectional discharge warehouse cleaning machine, belonging to the technical field of bulk material discharge equipment. Background Technology

[0002] Currently, circular silos used for storing grains and other materials have multiple gravity-flow inlets along the radial direction at their bottom. Before feeding, a spiral cleaning machine stops above the gravity-flow inlets, and the material enters the silo for storage. During discharge, the gates of each inlet are opened first, and the material in the middle flows out by gravity, exposing the spiral cleaning machine. The remaining material after gravity flow is completed is output by the spiral cleaning machine.

[0003] Because materials tend to clump together after accumulating in the silo for extended periods, the auger cleaner frequently collapses and buries the machine during cleaning operations. When buried, the load on the auger shaft increases, causing the main motor driving the shaft to overload and preventing it from starting under heavy load. Furthermore, when buried, the auger cleaner may overshoot the baffle behind the cleaning auger, preventing it from reversing to unload the load and restart. Often, manual intervention is required to clear the collapsed material behind the auger, then reverse the machine to remove the material, unload the auger shaft, and attempt to restart. This results in low cleaning efficiency, and the clumps can reach several meters high, posing a safety hazard to workers entering the silo.

[0004] Chinese patent CN108996264B discloses "a clearing device," including a frame and a rotating centering device. The rotating centering device is located at the end of the frame. The frame is also equipped with a conveying device for conveying materials and a drive device for controlling the movement of the frame. The conveying device includes a first auger and a second auger, which are respectively located on the front and rear sides of the frame, giving the device a bidirectional discharge function. However, this technical solution still has the following drawbacks: 1. When storing raw materials that are prone to caking, such as soybeans from Brazil, which have high moisture content and many impurities, the storage machine is prone to caking and the caking strength is high. When the equipment is buried deep, the cleaning machine does not have enough torque and strength to start under heavy load. 2. The bottom of the bin is equipped with a circular "I"-shaped track along the middle diameter. In case of emergency or special circumstances, if the bin cleaning equipment cannot be started, a loader needs to be driven into the bin to assist in unloading. However, if there is a raised track on the bottom of the bin, it will affect the movement of the loader for cleaning or may damage the track. 3. Under the general trend of increasing national requirements for explosion protection, the drive unit is located inside the silo, making it impossible to maintain and repair it when there is material. It requires manual removal of materials from the silo, which is a huge workload and quite dangerous. At the same time, it will affect the heat dissipation of the drive unit itself, which also poses certain safety hazards. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems existing in the above and / or prior art, this utility model is proposed.

[0007] The purpose of this utility model is to overcome the problems existing in the prior art and provide a bidirectional discharge cleaning machine that can reliably discharge and clean highly caking materials, with high cleaning efficiency and good safety.

[0008] To solve the above technical problems, this utility model provides a bidirectional discharge cleaning machine, comprising: The central frame of the silo bottom is fixed at the central opening of the silo bottom plate; A slewing bearing is installed in the circular hole of the central frame of the bin bottom. A large slewing gear is provided on the outer circumference of the outer ring, and the top of the outer ring is higher than the inner ring and is fixedly connected to a slewing ring. The upper end of the feeding rotary cylinder is coaxially fixed to the inner circumference of the rotary ring, and the lower end is rotatably and sealed to the fixed discharge cylinder (17), and is divided into a material passage space and an equipment installation space by a vertical partition. The revolution drive device includes two revolution drive hydraulic motors symmetrically arranged relative to the large rotary gear. The output shaft of the revolution drive hydraulic motor is provided with a driving pinion, which meshes with the large rotary gear. The revolution drive hydraulic motor is connected to a hydraulic pump station located outside the warehouse through a reversing valve and an oil pipe. The radial beam has a vertical baffle plate at its inner end, which is supported on the rotating ring. The bottom along the length direction is supported on the bottom of the bin by multiple rollers. The first auger is suspended on the front side of the radial beam; The second auger is suspended on the rear side of the radial beam.

[0009] Furthermore, the first auger is a heavy-duty auger, and the second auger is a light-duty auger; a heavy-duty reducer and a light-duty reducer are fixed on the side of the vertical baffle plate opposite to the radial beam. The lower end of the input shaft of the heavy-duty reducer is driven by the first discharge motor, and the output shaft of the heavy-duty reducer is connected to the input end of the first auger through a heavy-duty coupling; the lower end of the input shaft of the light-duty reducer is driven by the second discharge motor, and the output shaft of the light-duty reducer is connected to the input end of the second auger through a light-duty coupling; the first discharge motor and the second discharge motor are respectively located in the equipment installation space separated by the discharge rotary cylinder.

[0010] Furthermore, the equipment installation space is provided with a conductive slip ring that supplies power to the first discharge motor and the second discharge motor.

[0011] Furthermore, the first and second augers are respectively provided with arc-shaped baffles on their rear sides in the direction of revolution, and the concave arc surfaces of the two arc-shaped baffles are respectively matched with the outer edges of the corresponding augers.

[0012] Furthermore, the radial beam is covered with a cap that extends along its entire length and is higher in the middle and lower on both sides. Adjustable baffles are connected to the lower edges of the two sides of the cap. The distance between the lower edge of the adjustable baffle and the outer edge of the corresponding auger is adjustable to control the feed rate of the auger.

[0013] Furthermore, the lower edge of the adjustable baffle is a bevel, and the closer it is to the center of the bin, the smaller the distance between its lower edge and the outer edge of the auger.

[0014] Furthermore, the outermost roller is a grooved roller, and a matching annular steel rail is pre-embedded at the bottom of the bin.

[0015] Furthermore, the first discharge motor, the second discharge motor, the heavy-duty reducer, and the light-duty reducer are all located within the equipment installation space of the open opening of the discharge rotary cylinder, forming an overall explosion-proof and maintenance-free drive unit.

[0016] Compared to the prior art, the advantages or beneficial effects of the embodiments of this application include at least the following: 1. Under normal conditions, the equipment revolves towards the high material pile, with a high-power, high-torque, and high-strength heavy-duty cleaning auger facing the high material pile. It has a strong arch-breaking ability and can smoothly discharge highly compacted materials. When the material pile collapses and buries the equipment, the equipment revolves in the opposite direction and the light-duty cleaning auger at the rear discharges the material. Since the collapsed material pile behind the equipment is relatively low and already in a loose state, the light-duty cleaning auger can smoothly send it into the central cylinder for discharge without waiting for the equipment to complete one revolution. 2. No raised tracks are required inside the bin. Under certain circumstances, the loader can enter the bin and move normally to carry out the cleaning operation. 3. The revolution drive consists of two symmetrical hydraulic motors with high torque and stable output; at the same time, the revolution hydraulic drive device and the self-rotation motor gearbox drive device of the cleaning device are both installed outside the warehouse, improving the overall explosion-proof requirements, allowing maintenance and repair at any time, and avoiding the possibility of lubricating oil contaminating materials. It eliminates the need to manually empty the materials inside the warehouse for maintenance, greatly reducing labor intensity; and maintenance does not require personnel to enter the warehouse, greatly reducing safety risks. 4. According to on-site statistics from customers, bidirectional walking material discharge can save about 600,000 yuan per unit in scheduling and electricity costs compared to unidirectional walking material discharge; maintenance costs of the discharge machine are reduced by 30%, equipment drive maintenance and repair are convenient, and the utilization rate of factory equipment is increased by 20%. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The drawings are provided for reference and illustration only and are not intended to limit this utility model. Wherein: Figure 1 This is a front view of the bidirectional discharge cleaning machine of this utility model; Figure 2 This is a top view of the bidirectional discharge and cleaning machine of this utility model; Figure 3 This is a right-side enlarged view of the bidirectional discharge cleaning machine of this utility model; Figure 4 This is a magnified left view of the bidirectional discharge cleaning machine of this utility model; Figure 5 This is a rear view of the bidirectional discharge cleaning machine of this utility model; Figure 6 This is a top view of the drive device after removing the rotary ring and cover plate in this utility model; Figure 7 This is a perspective view of the driving component in this utility model; Attached reference numerals: 1. Bottom center frame; 2. Slewing bearing; 2a. Slewing ring; 2b. Large slewing gear; 3. Discharge slewing cylinder; 4. Vertical partition; 5. Radial beam; 5a. Roller; 5b. Curved baffle plate; 6. Hydraulic pump station; 7. Revolutionary drive hydraulic motor; 7a. Drive pinion; 8. First discharge motor; 9. Heavy-duty reducer; 10. First auger; 10a. First auger suspension; 11. Second discharge motor; 12. Light-load reducer; 13. Second auger; 13a. Second auger suspension; 14. Cap top; 15. Adjustable baffle; 16. Conductive slip ring; 17. Fixed discharge cylinder; 18. Limiting ring groove. Detailed Implementation

[0018] In the following description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship 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 mean that the device must have a specific orientation.

[0019] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0021] like Figures 1 to 7 As shown, the bidirectional discharge and cleaning machine of this utility model includes a slewing bearing 2, a discharge slewing cylinder 3, a revolution drive hydraulic motor 7, a first auger 10, and a second auger 13. The bottom center frame 1 is usually a square frame fixed in the center square opening of the circular silo bottom plate. The slewing bearing 2 is fixed in the circular opening of the bottom center frame 1. The inner ring and bottom plate of the slewing bearing 2 are fixedly connected to the bottom center frame 1. The outer ring is supported on the outer periphery of the inner ring by a large bearing. A large rotating gear 2b is provided on the outer periphery of the outer ring. The top of the outer ring is higher than the top of the inner ring and is fixedly connected to a rotating ring 2a that rotates with the outer ring. An annular cover plate is fixed above the circular opening of the bottom center frame 1, covering the outer periphery of the rotating ring 2a, the large rotating gear 2b, and the bearing of the slewing bearing 2.

[0022] The inner circumference of the rotating ring 2a is connected to a downwardly extending discharge rotating cylinder 3. The discharge rotating cylinder 3 is divided into a material passage space and an equipment installation space by a vertical partition 4. The lower end of the discharge rotating cylinder 3 is rotatably connected to the fixed discharge cylinder 17 and they are mutually sealed. The material passage space is a closed structure that runs vertically through the cylinder. The upper end of the discharge rotating cylinder 3 receives the material from the discharge ends of the first auger 10 and the second auger 13. The equipment installation space has its arc-shaped cylinder wall cut off to form an open structure, which facilitates installation and maintenance.

[0023] A vertical partition is also fixedly connected above the rotary ring 2a to separate the discharge space from the equipment space. The inner end of the radial beam 5 is connected to the vertical partition and supported on the rotary ring 2a. The cross-section of the radial beam 5 is T-shaped with a wider top and a narrower bottom, and the bottom along the length direction is supported on the ground by multiple rollers 5a.

[0024] Two symmetrical, diagonally mounted, revolution-driven hydraulic motors 7 are installed below the central frame 1 at the bottom of the storage silo. Each revolution-driven hydraulic motor 7 has a drive pinion 7a fixed to its upper output shaft, and the two drive pinions 7a mesh symmetrically on both sides of the rotating large gear 2b. The revolution-driven hydraulic motors 7 are connected to a hydraulic pump station 6 via high-pressure oil pipes and a reversing valve. The hydraulic pump station 6 provides power to the revolution-driven hydraulic motors 7 and controls their forward and reverse rotation via the reversing valve.

[0025] A first auger 10 is located on the front side of the radial beam 5 in its revolution direction, and a second auger 13 is located on the rear side of the radial beam 5 in its revolution direction. The first auger 10 is located on the front side of the radial beam 5, and its end is suspended below the radial beam 5 by a first auger hanger 10a. Multiple second auger hangers 13a suspend the second auger 13 on the rear side of the radial beam 5 along its length. The first auger 10 is a heavy-duty auger, and the second auger 13 is a light-duty auger. A heavy-duty reducer 9 and a light-duty reducer 12 are fixed on the upper part of the vertical partition 4, opposite to the radial beam 5. The lower end of the input shaft of the heavy-duty reducer 9 is driven by a first discharge motor 8, and the lower end of the input shaft of the light-duty reducer 12 is driven by a second discharge motor 11. The first discharge motor 8 and the second discharge motor 11 are located in the equipment installation space separated by the discharge rotary drum 3.

[0026] The output shafts of the heavy-duty reducer 9 and the light-duty reducer 12 pass through the vertical partition 4 and enter the space below the radial beam 5. The output shaft of the heavy-duty reducer 9 is connected to the input end of the first auger 10 through a heavy-duty coupling, and the output shaft of the light-duty reducer 12 is connected to the input end of the second auger 13 through a light-duty coupling.

[0027] The circular silo bottom plate has multiple gravity-flow discharge ports along its diameter, with each discharge port and the central square opening located on the same diameter line. Before feeding, the radial beam 5 is positioned above the diameter of the gravity-flow discharge port, and then the material is fed in.

[0028] When discharging, the gates of each discharge port are opened first, allowing the material in the bin to flow out by gravity until the cleaning machine and each discharge port are exposed, forming two material piles inside the bin that are low in the middle and high on both sides.

[0029] Then, the two revolving hydraulic motors 7 rotate synchronously forward, and the two driving pinions 7a jointly drive the rotating gear 2b to rotate. The rotating gear 2b drives the vertical partition 4, the auger drive device, the feeding rotary cylinder 3, the radial beam 5, the inner ends of the first auger 10 and the second auger 13 to rotate synchronously counterclockwise through the rotary ring 2a. The radial beam 5 carries the first auger 10 and the second auger 13 forward towards the material pile. The first auger 10 conveys the material radially towards the center and it falls into the feeding rotary cylinder 3, and finally slides out through the fixed discharge cylinder 17.

[0030] When encountering hardened material, the first auger 10 can directly break the arch and discharge the material. When the material collapses and falls behind the radial beam 5, the sensor sends an alarm. At this time, the system automatically starts the second auger 13, and the electromagnetic reversing valve switches the oil circuit, causing the two revolving drive hydraulic motors 7 to synchronously reverse. The rotating ring 2a drives the vertical baffle 4, the auger drive equipment, the discharge rotary cylinder 3, the radial beam 5, and the inner ends of the first auger 10 and the second auger 13 to synchronously rotate clockwise. The second auger 13 clears the collapsed material behind it. After clearing, the second auger 13 stops running, the first auger 10 restarts, and the radial beam 5 resumes its counterclockwise forward movement.

[0031] Each support of the radial beam 5 is located between the first auger 10 and the second auger 13. Each support has a roller 5a at its bottom. A ring-shaped steel plate can be pre-embedded in the hopper floor for the rollers 5a to travel on, with the top of the ring-shaped steel plate flush with the ground. The outermost roller 5a can be a grooved wheel, and a ring-shaped steel rail matching the grooved wheel can be pre-embedded on the outer ring of the hopper floor. Because the grooves of the rollers 5a are shallow, the ring-shaped steel rail protrudes very low from the ground, not affecting the loader's entry into the hopper under special circumstances. A limiting ring groove 18, with its top flush with the ground, can also be pre-embedded in the hopper floor floor. The edge of the outermost roller 5a is embedded in the limiting ring groove 18 to limit its circumference of revolution.

[0032] The first auger 10 and the second auger 13 are respectively provided with arc-shaped baffles 5b on their rear sides in the material discharge forward state. The arcs of the two baffles are opposite to each other and match the outer edge shape of the corresponding augers to improve the auger conveying efficiency and ensure clean material removal.

[0033] The radial beam 5 is covered with a cap 14 that is high in the middle and low on both sides. The cap 14 extends along the entire length of the radial beam 5, which can improve the strength of the radial beam 5 and ensure that the equipment is not damaged when the material collapses.

[0034] Adjustable baffles 15 are fixed to the lower edges of both sides of the cap 14. The outer edges of the first auger 10 and the second auger 13 protrude from the lower edges of the adjustable baffles 15. The protrusion distance determines the feed rate of the augers. The protrusion distance of the adjustable baffles 15 can be adjusted according to different silo types. For materials with good flowability, since more material automatically flows into the auger, the protrusion distance of the auger's outer edge is reduced, thereby reducing the amount of material directly entering the auger from above. For materials with poor flowability, since less material automatically flows into the auger, the protrusion length of the auger's outer edge is increased, thereby increasing the feed rate of the auger.

[0035] As the amount of material conveyed increases from the bin wall to the bin center, the lower edge of the adjustable baffle 15 can be designed as a bevel, so that the distance of the auger exposed closer to the bin center is smaller, which can ensure stable material cleaning and stable output.

[0036] The back side of the vertical partition 4 is covered with a cover to shield the heavy-duty reducer 9, the light-duty reducer 12 and the slewing ring 2a below. The top of the cover is sloping and tilts towards the auger discharge end to prevent material accumulation at the top.

[0037] Both the first discharge motor 8 and the second discharge motor 11 are powered through a conductive slip ring 16. The conductive slip ring 16 is located between the first discharge motor 8 and the second discharge motor 11, which ensures stable power transmission during revolution and prevents the cables from getting tangled.

[0038] The above description is merely a preferred embodiment of the present utility model, showing and describing the basic principles, main features, and advantages of the present utility model. It is not intended to limit the scope of patent protection of the present utility model. Those skilled in the art should understand that the present utility model is not limited to the above embodiments. In addition to the above embodiments, the present utility model may have other implementations without departing from the spirit and scope of the present utility model. Various changes and improvements to the present utility model are also possible. All technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by the present utility model. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents. Technical features not described in the present utility model can be implemented by or using existing technology, and will not be elaborated here.

Claims

1. A bidirectional discharge and cleaning machine, characterized in that, include: The central frame of the silo bottom (1) is fixed at the central opening of the silo bottom plate; A slewing bearing (2) is installed in the circular hole of the central frame (1) at the bottom of the bin. A large slewing gear (2b) is provided on the outer circumference of the outer ring. The top of the outer ring is higher than the inner ring and is fixedly connected to a slewing ring (2a). The upper end of the feeding rotary cylinder (3) is coaxially fixed to the inner circumference of the rotary ring (2a), and the lower end is rotatably and sealed to the fixed discharge cylinder (17). It is divided into a material passage space and an equipment installation space by a vertical partition (4). The revolution drive device includes two revolution drive hydraulic motors (7) arranged symmetrically relative to the large rotary gear (2b). The output shaft of the revolution drive hydraulic motor (7) is provided with a driving pinion (7a). The driving pinion (7a) meshes with the large rotary gear (2b). The revolution drive hydraulic motor (7) is connected to a hydraulic pump station (6) located outside the warehouse through a reversing valve and an oil pipe. The radial beam (5) has a vertical baffle plate at its inner end and is supported on the rotary ring (2a). The bottom along the length direction is supported on the bottom of the bin by multiple rollers (5a). The first auger (10) is suspended on the front side of the radial beam (5); The second auger (13) is suspended on the rear side of the radial beam (5).

2. The bidirectional discharge and cleaning machine according to claim 1, characterized in that: The first auger (10) is a heavy-duty auger, and the second auger (13) is a light-duty auger. A heavy-duty reducer (9) and a light-duty reducer (12) are fixed on the side of the vertical baffle opposite to the radial beam (5). The lower end of the input shaft of the heavy-duty reducer (9) is driven by the first discharge motor (8), and the output shaft of the heavy-duty reducer (9) is connected to the input end of the first auger (10) through a heavy-duty coupling. The lower end of the input shaft of the light-duty reducer (12) is driven by the second discharge motor (11), and the output shaft of the light-duty reducer (12) is connected to the input end of the second auger (13) through a light-duty coupling. The first discharge motor (8) and the second discharge motor (11) are respectively located in the equipment installation space separated by the discharge rotary cylinder (3).

3. The bidirectional discharge and cleaning machine according to claim 2, characterized in that: The equipment installation space is provided with a conductive slip ring (16) that supplies power to the first discharge motor (8) and the second discharge motor (11).

4. The bidirectional discharge and cleaning machine according to claim 1, characterized in that: The first auger (10) and the second auger (13) are respectively provided with arc-shaped baffles on their rear sides in the direction of revolution, and the concave arc surfaces of the two arc-shaped baffles are respectively matched with the outer edges of the corresponding augers.

5. The bidirectional discharge and cleaning machine according to claim 1, characterized in that: The radial beam (5) is covered with a cap (14) that extends along the entire length and is high in the middle and low on both sides. The lower edges of the cap (14) are respectively connected to adjustable baffles (15). The distance between the lower edge of the adjustable baffle (15) and the corresponding outer edge of the auger is adjustable to control the feed rate of the auger.

6. The bidirectional discharge and cleaning machine according to claim 5, characterized in that: The lower edge of the adjustable baffle (15) is a slanted edge, and the closer it is to the center of the bin, the smaller the distance between its lower edge and the outer edge of the auger.

7. The bidirectional discharge and cleaning machine according to claim 1, characterized in that: The outermost roller (5a) is a grooved roller, and a matching annular steel rail is pre-embedded at the bottom of the bin.

8. The bidirectional discharge and cleaning machine according to claim 2, characterized in that: The first discharge motor (8), the second discharge motor (11), the heavy-duty reducer (9) and the light-duty reducer (12) are all located in the equipment installation space of the open discharge rotary cylinder (3), forming an overall explosion-proof and maintenance-free drive unit.

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