Movable automatic bin cleaning equipment for flat-bottom circular bin

Abstract

The utility model discloses a flat-bottom round bin movable type automatic bin cleaning device which comprises a central cofferdam, a movable cofferdam, a movable cofferdam, a movable cofferdam and a movable cofferdam. One end of the movable truss extends towards the central cofferdam, and the other end of the movable truss extends out of the round bin large door; the material conveying auger is arranged below the movable truss, and a plurality of supporting and adjusting assemblies are fixed to the material conveying auger in the length direction of the material conveying auger; the top of the central bracket is connected below one end, close to the center of the round bin, of the movable truss through a slewing bearing; the lower end is supported on the ground through a central bracket supporting leg and a roller; the walking mechanism is mounted on the rear side of the auger bracket and is used for driving the material conveying auger to rotate in the round bin; the material lifting unit is fixedly installed at the inner end of the movable truss and used for lifting the materials to a certain height; and the belt conveyor is fixedly installed in the movable truss, the inner end of the belt conveyor receives the discharged materials of the material lifting unit, and the outer end of the belt conveyor extends out of the round bin big door. According to the utility model, efficient and safe automatic delivery and clearance operation can be realized.

Description

Technical Field

[0001] This utility model relates to a flat-bottomed circular silo, and more particularly to a mobile automated silo cleaning device for a flat-bottomed circular silo, belonging to the technical field of circular silo cleaning equipment. Background Technology

[0002] Most existing equipment for unloading and cleaning silos and shallow circular silos is fixedly installed inside the silo. A typical method involves pre-setting channels below the silo floor for the installation of conveying equipment, while a spiral cleaning machine is installed at the silo bottom for circumferential cleaning, pushing the material to the discharge port and then transporting it outside the silo via the conveying equipment in the channels. This construction method for circular silos with fixed cleaning equipment has many drawbacks:

[0003] 1. Each warehouse is equipped with a set of clearing equipment, which significantly increases the cost per warehouse;

[0004] 2. The reserved storage bottom trenches and storage machinery tracks increase the difficulty of construction;

[0005] 3. The equipment is permanently installed inside the warehouse and used very infrequently. Over the years, it is prone to rust and failure, and maintenance is difficult.

[0006] Other grain silos are constructed with a simple flat bottom, without drainage ditches or any mechanical cleaning equipment, thus avoiding the drawbacks of the above methods. Due to the lack of fixed cleaning equipment, after the material has flowed by gravity, cleaning requires a significant amount of manpower to remove the remaining material at the bottom, often involving the introduction of various equipment, even excavators. This method is time-consuming and labor-intensive, generates severe dust, creates a harsh environment, is unsuitable for prolonged work, and also poses certain risks. Therefore, efficient automated cleaning of these flat-bottomed circular silos, eliminating the need for manual intervention, is currently a pressing need.

[0007] Patent document CN 213802020U discloses a mobile spiral cleaning machine. Although it achieves mobility and can be transferred and shared between multiple warehouses, it still requires the installation of trenches and conveying equipment at the bottom of the warehouses. This type of cleaning machine requires pushing materials to the discharge port and then conveying them out through the trenches; it cannot solve the problems of low usage frequency and difficult maintenance of the conveying equipment. Furthermore, before the machine enters the warehouse, a channel of a certain width needs to be manually cleared as its entry and exit route and installation surface, which cannot completely eliminate the risks associated with manual warehouse entry operations.

[0008] Patent document CN 111470342A discloses a tracked mobile spiral cleaning machine that enables the cleaning machine to move without the need for pre-installed conveying equipment at the bottom of the silo. However, this type of mobile cleaning machine requires continuous control of its propulsion and turning within the silo to ensure continuous cleaning. In actual implementation, it requires real-time manual observation and control to ensure that the cleaning machine can effectively contact the material surface. Utility Model Content

[0009] 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.

[0010] In view of the problems existing in the above and / or prior art, this utility model is proposed.

[0011] The purpose of this invention is to overcome the problems of low efficiency, high cost and poor safety of existing circular silo cleaning and unloading equipment, and to provide a mobile automated cleaning and unloading device for flat-bottomed circular silos that can achieve efficient and safe automated cleaning and unloading operations.

[0012] To solve the above technical problems, this utility model provides a flat-bottomed circular warehouse mobile automated cleaning device, comprising:

[0013] The central cofferdam 2 is set at the ground center of the circular silo 1 and can rotate around the axis of the circular silo;

[0014] The movable truss 4 is capable of translation, with one end extending towards the central cofferdam 2 and the other end extending out of the circular warehouse gate 1b;

[0015] The material conveying auger 6 is located below the movable truss 4, and multiple support adjustment components 5 are fixed along its length. Each support adjustment component 5 has a support caster 5c supported on the ground at its bottom.

[0016] The central support 8 has a slewing bearing 8a at the top, and is connected to the lower end of the movable truss 4 near the center of the silo via the slewing bearing 8a; the lower end is supported on the ground by the central support leg 8b and the central support roller 8c at the bottom.

[0017] The traveling mechanism 7 is installed on the rear side of the auger support 6a of the material conveying auger 6 and is used to drive the material conveying auger 6 to rotate inside the silo 1.

[0018] The material lifting unit 9 is fixedly installed at one end of the mobile truss 4 near the center of the silo, and is used to lift materials from the ground to a certain height;

[0019] The belt conveyor 10 is fixedly installed in the movable truss 4, located above the material conveying auger 6. Its inner end receives the material discharge from the material lifting unit 9, and its outer end extends along the movable truss 4 to the outside of the circular silo gate 1b.

[0020] Furthermore, the bottom of the central cofferdam 2 is welded to the cofferdam base 2a, the cofferdam base 2a is embedded in the bottom ground of the warehouse, and roller limiting plates 2b are welded to the lower part of the inner wall near both ends of the central cofferdam 2.

[0021] Furthermore, a pair of central support legs 8b are provided on the front and rear sides of the horizontal top plate of the central support 8, and the lower end of the central support legs 8b is supported on the ground by the central support rollers 8c; the bottom of the movable truss 4 near the center of the silo is provided with a truss circular flange 4c, and the truss circular flange 4c is fixed to the upper flange of the slewing bearing 8a by bolts.

[0022] Furthermore, the rear side of the material conveying auger 6 is an auger support 6a, and an auger drive motor 6b is installed at one end of the auger support 6a near the bin wall. The drive end of the auger drive motor 6b drives the auger shaft 6d to rotate through the transmission chain 6c. A bin wall support wheel 6e is installed at one end of the auger support 6a near the bin wall.

[0023] Furthermore, the support adjustment assembly 5 includes a support housing 5a, with a housing top cover 5g at the upper end of the support housing 5a. A pressure cap 5h is screwed into the inner thread of the housing top cover 5g. A support spring 5e is located below the pressure cap 5h. A telescopic adjustment seat 5d is located at the lower end of the support spring 5e. An axially positioned and rotatable telescopic adjustment screw 5f is inserted into the center hole of the pressure cap 5h. The lower end of the telescopic adjustment screw 5f is screwed into the center threaded hole of the telescopic adjustment seat 5d. A square tube 5b is welded to the lower end of the telescopic adjustment seat 5d. The square tube 5b extends from the lower port of the support housing 5a and the lower end is equipped with the support caster wheel 5c.

[0024] Furthermore, an adjustment handle 5j is inserted into the upper end of the telescopic adjustment screw 5f.

[0025] Furthermore, the walking mechanism 7 includes a walking motor 7a, a walking reducer 7b, a walking drive shaft 7c, and a walking wheel 7d. The rotor shaft of the walking motor 7a is connected to the input end of the walking reducer 7b, the output end of the walking reducer 7b is connected to the walking drive shaft 7c, and the walking wheel 7d is mounted on the walking drive shaft 7c.

[0026] Furthermore, the walking wheel 7d includes at least three hubs 7d1, the circumference of each hub 7d1 is connected as a whole by evenly distributed angle steels 7d2, and wear-resistant plates 7d3 are fixed to the vertical side of each angle steel 7d2 by bolts. The outer edge of each wear-resistant plate 7d3 extends beyond the outer diameter of the hub 7d1, and the support point of the vertical side of each angle steel 7d2 is embedded in the radial groove of the hub 7d1 and welded as a whole.

[0027] Furthermore, the central support 8 also includes a central support enclosure plate 8d, one end of which is reserved with a semi-circular clearance groove corresponding to the discharge end of the auger shaft 6d, and the other end of the central support enclosure plate 8d is bent in the direction of the central cofferdam 2.

[0028] Furthermore, the material lifting unit 9 includes a lifting motor 9a, a spiral lifting section 9b, and a rotary feeding head 9d. The spiral lifting section 9b is a vertical auger. The lifting motor 9a is installed above the spiral lifting section 9b, and the rotary feeding head 9d is rotatably connected below the spiral lifting section 9b and is coaxial with the spiral lifting section 9b.

[0029] Furthermore, an external gear ring 9d1 is fixed to the upper outer circumference of the rotary feed head 9d, and a feeding gear is meshed on one side of the external gear ring 9d1. The feeding gear is driven by a feed head drive motor 9c, which is mounted on a bracket on the lower outer circumference of the spiral lifting section 9b. A plurality of feed inlets 9d2 extending outward tangentially are symmetrically arranged on the lower circumference of the rotary feed head 9d.

[0030] Furthermore, the spiral lifting section 9b and the rotary feeding head 9d can be radially translated along the central cofferdam 2 under the drive of the reciprocating motion component 9e.

[0031] Furthermore, the reciprocating motion assembly 9e includes horizontal guide rods 9e1, a slide block 9e2, a reciprocating motor reducer 9e3, and a lead screw 9e4. The two horizontal guide rods 9e1 are parallel to the width direction of the movable truss 4. Guide holes are provided on both sides of the slide block 9e2. The horizontal guide rods 9e1 pass through the guide holes of the slide block 9e2 and are fixed at both ends to the movable truss 4. The lead screw 9e4 is connected to the middle of the slide block 9e2 and is driven by the reciprocating motor reducer 9e3. The cylinder of the spiral lifting section 9b passes through the central hole of the slide block 9e2 and is fixedly connected.

[0032] Furthermore, a chute 4d is fixed at the upper part of the inner end of the movable truss 4, which is used to guide the material sent out by the material lifting unit 9 to the belt conveyor 10 and send it out of the circular silo gate 1b.

[0033] Furthermore, a sensor is also installed on the material conveying auger 6 to detect whether there is still material around the material auger shaft 6d. When the sensor detects that there is no material, it triggers the walking mechanism 7 to move forward.

[0034] Compared with the prior art, the present invention has achieved the following beneficial effects: 1. No pre-installed conveying equipment is required in the warehouse. By using a combination of material conveying auger, material lifting unit and belt conveyor, the material can be transported to the outside of the warehouse by the equipment itself to achieve warehouse clearing. This avoids the additional investment and maintenance problems caused by installing equipment in the warehouse and greatly reduces the fixed investment of a single warehouse.

[0035] 2. During the process of the equipment entering the warehouse, the material lifting unit and belt conveyor work together to clean the warehouse entry channel by themselves. There is no need for manual cleaning of the radial channel before entering the warehouse, which greatly reduces the input of human labor, reduces the risk of workers entering the warehouse, and significantly improves work efficiency compared with manual cleaning.

[0036] 3. The material conveying auger is constrained by the bin walls and the central dike inside the bin, and can achieve 360° rotation and cleaning. The movement is simple and requires no manual intervention.

[0037] 4. Mobile cleaning equipment is easy to move and does not need to stay in the warehouse. It can enter the warehouse to work, and after cleaning, it can move to the next round warehouse, realizing the sharing of multiple warehouses and reducing equipment investment costs. Attached Figure Description

[0038] 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:

[0039] Figure 1 This is a diagram showing the state of the flat-bottomed circular warehouse mobile automated cleaning equipment of this utility model as it enters the warehouse body.

[0040] Figure 2 This is a diagram showing the state of the flat-bottomed circular warehouse mobile automated cleaning equipment of this utility model when it travels radially into position;

[0041] Figure 3 This is a diagram showing the state of the material conveying auger rotating and discharging material in this utility model.

[0042] Figure 4 This is the front view of the flat-bottomed circular warehouse mobile automated clearing equipment of this utility model;

[0043] Figure 5 for Figure 4 3D exploded view;

[0044] Figure 6 This is a perspective view of the central support in this utility model;

[0045] Figure 7 This is a perspective view of the material conveying auger in this utility model;

[0046] Figure 8 This is a perspective view of the support and adjustment component in this utility model;

[0047] Figure 9 This is a cross-sectional view of the support and adjustment component in this utility model;

[0048] Figure 10 A three-dimensional view of the traveling wheels in the traveling mechanism;

[0049] Figure 11 This is a perspective view of the material lifting unit in this utility model;

[0050] In the diagram: 1. Cylindrical silo; 1a. Gravity discharge port; 1b. Cylindrical silo gate;

[0051] 2. Central cofferdam; 2a. Cofferdam base; 2b. Roller limiting plate;

[0052] 3. Limit guide rail;

[0053] 4. Moving truss; 4a. Truss leg; 4b. Truss leg roller; 4c. Truss circular flange; 4d. Chute;

[0054] 5. Support adjustment assembly; 5a. Support housing; 5b. Square tube; 5c. Support casters; 5d. Telescopic adjustment seat; 5e. Support spring; 5f. Telescopic adjustment screw; 5g. Housing top cover; 5h. Pressure cap; 5j. Adjustment handle; 5k. Housing connection flange;

[0055] 6. Material conveying auger; 6a. Auger support frame; 6b. Auger drive motor; 6c. Transmission chain; 6d. Auger shaft; 6e. Bin wall support rollers;

[0056] 7. Traveling mechanism; 7a. Traveling motor; 7b. Traveling reducer; 7c. Traveling drive shaft; 7d. Traveling wheel; 7d1. Wheel hub; 7d2. Angle steel; 7d3. Wear-resistant plate;

[0057] 8. Central support; 8a. Slewing bearing; 8b. Central support leg; 8c. Central support roller; 8d. Central support enclosure plate;

[0058] 9. Material lifting unit; 9a. Lifting motor; 9b. Spiral lifting section; 9b1. Lifting outlet; 9c. Feeding head drive motor; 9d. Rotary feeding head: 9d1. External gear ring; 9d2. Feed inlet; 9e. Reciprocating motion assembly: 9e1. Horizontal guide rod; 9e2. Slide; 9e3. Reciprocating motor reducer; 9e4. Lead screw;

[0059] 10. Belt conveyor. Detailed Implementation

[0060] 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.

[0061] 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.

[0062] 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.

[0063] like Figures 1 to 5 As shown, in the flat-bottomed circular silo mobile automated cleaning equipment of this utility model, the bottom perimeter of the circular silo 1 is usually symmetrically provided with four self-flowing discharge ports 1a, each discharge port 1a is at a certain height from the ground, and the bottom of the circular silo 1 is also provided with a circular silo door 1b.

[0064] A central cofferdam 2, rising upwards, is located at the center of the ground of the circular silo 1. The bottom of the central cofferdam 2 is welded to a cofferdam base 2a, which is embedded in the ground at the bottom of the silo. The upper surface of the cofferdam base 2a is at the same level as the ground and can rotate around the center. A wear-resistant base plate is installed below the cofferdam base 2a to isolate the cofferdam base 2a from friction with the cement material at the bottom of the circular silo 1. The inner ring of the cofferdam base 2a may be equipped with a pressure cap or a limiting claw to prevent the cofferdam base 2a from jumping out of its groove while rotating automatically.

[0065] The central cofferdam 2 is semi-circular and is used to contain the material in the center and prevent it from flowing outward. Roller limiting plates 2b are welded to the lower part of the inner wall near both ends of the central cofferdam 2 to limit the movement of the truss 4 in the center of the silo 1.

[0066] The limiting guide rail 3 consists of two parallel straight strips that extend radially from the cylindrical gate 1b to near the central cofferdam 2 and are fixed to the ground of the cylindrical 1. They are used to guide the direction of travel of the moving truss 4 when it enters the cylindrical 1 and prevent it from deviating from its course.

[0067] The movable truss 4 extends radially along the silo 1, with one end connected to the central cofferdam 2 and the other end extending out of the silo gate 1b. Below the movable truss 4 is a material conveying auger 6, and multiple support and adjustment components 5 are fixed along the length of the material conveying auger 6. Each support and adjustment component 5 includes a support caster 5c supported on the ground, used to support the material conveying auger 6 and adjust its height.

[0068] like Figure 5 , Figure 6 As shown, the movable truss 4 is connected to a central support 8 at one end near the center of the silo. The central support 8 includes a horizontal top plate, and the front and rear sides of the horizontal top plate are supported on the ground by a pair of central support legs 8b and the central support rollers 8c at the bottom.

[0069] A slewing bearing 8a is provided at the center of the horizontal top plate. A truss circular flange 4c is provided at the bottom of one end of the movable truss 4 near the center of the silo. The truss circular flange 4c is fixed to the upper flange of the slewing bearing 8a by bolts, so that the central support 8 can rotate relative to the movable truss 4.

[0070] The movable truss 4 has truss legs 4a connected to the front and rear sides of the end closest to the outside of the warehouse. The lower ends of the truss legs 4a are supported on the ground by truss leg rollers 4b, forming a support for the movable truss 4. The truss legs 4a can be moved by the truss leg rollers 4b and the central support rollers 8c.

[0071] After the movable truss 4 moves to the point where the central support roller 8c abuts against the roller limit plate 2b, it is moved into place and fixed. The central support 8 can rotate 360° around the axis of the slewing bearing 8a.

[0072] Below the horizontal top plate, on the side near the material conveying auger 6, there is a downward-extending central support guard plate 8d. One end of the central support guard plate 8d has a semi-circular clearance groove, which corresponds to the inner end of the auger shaft 6d, so that the material conveyed by the auger shaft 6d in the radial direction can enter the central cofferdam 2. The other end of the central support guard plate 8d is bent in the direction of the central cofferdam 2.

[0073] like Figure 7 As shown, the rear side of the material conveying auger 6 is the auger support 6a. The end of the auger support 6a near the bin wall is equipped with an auger drive motor 6b. The drive end of the auger drive motor 6b drives the auger shaft 6d to rotate through the transmission chain 6c, thereby conveying the material from the end near the bin wall to the end near the central cofferdam 2.

[0074] A screw support 6a is equipped with a silo wall support wheel 6e at one end near the silo wall. When the material conveying screw 6 conveys material radially, the reaction force from the material is transmitted to the screw support 6a through the screw shaft 6d, causing the silo wall support wheel 6e to fit tightly against the inner wall of the circular silo 1, thus providing radial limiting for the material conveying screw 6.

[0075] like Figure 8 , Figure 9 As shown, the upper part of the support adjustment assembly 5 is provided with a support housing 5a. The side wall of the support housing 5a is welded with a housing connection flange 5k for connection with the auger bracket 6a. The upper end of the support housing 5a is provided with a housing top cover 5g. A pressure cap 5h is screwed into the inner thread of the housing top cover 5g. A support spring 5e is provided below the pressure cap 5h. The lower end of the support spring 5e is provided with a telescopic adjustment seat 5d. An axially positioned and rotatable telescopic adjustment screw 5f is inserted into the center hole of the pressure cap 5h. The lower end of the telescopic adjustment screw 5f is screwed into the center threaded hole of the telescopic adjustment seat 5d. A square tube 5b is welded to the lower end of the telescopic adjustment seat 5d. The square tube 5b extends from the lower port of the support housing 5a and a support caster wheel 5c is installed at the lower end. The support spring 5e can provide a certain support force and can also pass through hard obstacles with elasticity during movement.

[0076] The telescopic adjusting screw 5f can be used to adjust the position of the telescopic adjusting seat 5d via the adjusting handle 5j. The adjusting handle 5j is L-shaped, with its short side inserted into the upper end of the telescopic adjusting screw 5f and its long side extending downwards. By rotating the long arm of the adjusting handle 5j to a horizontal position, the telescopic adjusting screw 5f can be rotated via the adjusting handle 5j, causing the telescopic adjusting seat 5d to raise or lower the square tube 5b and the support caster 5c, thereby adjusting the height of the entire support adjusting assembly 5 to adapt to different ground conditions.

[0077] In the initial state, the moving truss 4 and the material conveying auger 6 are in an axis-overlapping state and enter the silo together from the silo gate 1b, moving along the radius line from the silo gate 1b to the center of the silo. During this process, the support casters 5c at the bottom of each support adjustment component 5 on the material conveying auger 6 are located between the two limit guide rails 3 to avoid deviation.

[0078] A traveling mechanism 7 is installed on the rear side of the auger support 6a to drive the material conveying auger 6 to travel inside the silo 1.

[0079] The traveling mechanism 7 includes a traveling motor 7a, a traveling reducer 7b, a traveling drive shaft 7c, and a traveling wheel 7d; the rotor shaft of the traveling motor 7a is connected to the input end of the traveling reducer 7b, the output end of the traveling reducer 7b is connected to the traveling drive shaft 7c, and the traveling wheel 7d is mounted on the traveling drive shaft 7c.

[0080] like Figure 10As shown, the traveling wheel 7d includes at least three hubs. The circumference of each hub is connected as a whole by evenly distributed angle steels 7d2. Wear-resistant plates 7d3 are fixed to the vertical side of each angle steel 7d2 by bolts. The outer edge of each wear-resistant plate 7d3 extends beyond the outer diameter of the hub. The support points of the vertical side of each angle steel 7d2 are embedded in the radial groove of the hub and welded together.

[0081] The material lifting unit 9 is fixedly installed at one end of the mobile truss 4 near the center of the silo, and is used to lift materials from the ground to a certain height.

[0082] like Figure 11 As shown, the material lifting unit 9 includes a lifting motor 9a, a spiral lifting section 9b, a feeding head drive motor 9c, a rotary feeding head 9d, and a reciprocating motion assembly 9e. The spiral lifting section 9b is a vertical auger. The lifting motor 9a is installed above the spiral lifting section to drive the spiral lifting section to lift the material from the ground upwards. The rotary feeding head 9d is installed below the spiral lifting section 9b and is coaxial with the spiral lifting section 9b. The feeding head drive motor 9c is installed at the lower end of the spiral lifting section 9b and drives the external gear ring 9d1 on the upper part of the rotary feeding head 9d through the feeding gear at its output end, thereby driving the rotary feeding head 9d to rotate. The material is actively fed into the rotary feeding head 9d through the feed inlet 9d2 on the cylinder wall, increasing the speed of material grabbing. The feed inlets 9d2 are symmetrically arranged on the cylinder wall of the rotary feeding head 9d, with two and three extending outwards tangentially, respectively.

[0083] The rotation direction of the rotary feed head 9d is opposite to the rotation direction of the material conveying auger 6, which facilitates the feeding of material from the center of the auger shaft 6d into the inner cavity of the rotary feed head 9d. The lower end of the vertical auger of the spiral lifting section 9b extends into the inner cavity of the rotary feed head 9d to convey the material upward.

[0084] The reciprocating motion assembly 9e includes horizontal guide rods 9e1, a slide block 9e2, a reciprocating motor reducer 9e3, and a lead screw 9e4. Two horizontal guide rods 9e1 are parallel to the width direction of the movable truss 4. Guide holes are provided on both sides of the slide block 9e2, through which the horizontal guide rods 9e1 pass and are fixed at both ends to the movable truss 4. The lead screw 9e4 is connected to the middle of the slide block 9e2 and is driven by the reciprocating motor reducer 9e3. The cylinder of the spiral lifting section 9b passes through the central hole of the slide block 9e2 and is fixedly connected.

[0085] The reciprocating motor reducer 9e3 pulls the slide block 9e2 along the horizontal guide rod 9e1 through the lead screw 9e4 to make horizontal reciprocating motion, thereby widening the lateral feeding range of the material lifting unit 9.

[0086] The belt conveyor 10 is fixedly installed in the movable truss 4, located above the material conveying auger 6. Its inner end is connected to the discharge end of the material lifting unit 9 to receive material from the material lifting unit 9. A chute 4d is also fixed at the upper part of the inner end of the movable truss 4 to guide the material from the material lifting unit 9 onto the belt conveyor 10. The outer end of the belt conveyor 10 extends along the movable truss 4 to the outside of the circular silo gate 1b to transport the lifted material to the outside of the circular silo 1.

[0087] When the material is discharged from the circular silo 1, it first flows out through the gravity discharge port 1a inside the circular silo 1.

[0088] Phase 1: As Figure 1 When it is necessary to enter and clear the warehouse, the mobile truss 4 and the material conveying auger 6, material lifting unit 9, belt conveyor 10, etc. installed on it are pushed into the circular warehouse 1 through the circular warehouse gate 1b. During the movement, the support casters 5c are located between the two limit guide rails 3, which constrain the direction of travel of the mobile truss 4 and the material conveying auger 6.

[0089] As the material conveying auger 6 moves radially forward, the auger drive motor 6b drives the auger shaft 6d to rotate, conveying the outer peripheral material to the inner end.

[0090] The feed head drive motor 9c drives the rotating feed head 9d to rotate, and feeds through each feed port 9d2; the reciprocating motion component 9e moves to widen the lateral feeding range of the material lifting unit 9.

[0091] The material lifting unit 8 continues to operate, continuously lifting the material from the ground to the lifting outlet 9b1, and then dropping it from the lifting outlet 9b1 onto the belt conveyor 10, which then transports it to the outside of the circular silo gate 1b.

[0092] Simultaneously with material discharge, the moving truss 4 and the material conveying auger 6 continue to move towards the central area along the limiting guide rail 3. When the central support roller 8c contacts the roller limiting plate 2b, the moving truss 4 moves into position. Figure 2 As shown. At this time, the support casters 5c at the lower end of each support adjustment component 5 correspond to the notches on the limiting guide rail 3, facilitating the rotation of the conveying auger 6 in the second stage. When the spacing between adjacent support adjustment components 5 is unequal, the notches on the limiting guide rail 3 do not affect the radial movement of the material conveying auger 6. Alternatively, the cross-section of the limiting guide rail 3 can be made into an isosceles triangle with a high center and low sides, facilitating the support casters 5c to cross the limiting guide rail 3.

[0093] Phase Two: As Figure 3 As shown, the material conveying auger 6 keeps running, continuously conveying materials to the central area. The materials are also lifted to a high position by the material lifting unit 9, enter the belt conveyor 10 through the chute 4d, and then are conveyed to the outside of the warehouse by the belt conveyor 10.

[0094] When the sensor detects that there is no material around the material conveying auger 6, the traveling mechanism 7 drives the traveling wheel 7d to rotate, pushing the material conveying auger 6 to rotate around the axis of the silo 1 at a certain angle, and continue discharging material in the new phase; in this way, when the material conveying auger 6 rotates 360° around the axis of the silo 1, all-round emptying is achieved. In the second stage, the reciprocating motion component 9e does not operate.

[0095] 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 mobile automated warehouse clearing device for flat-bottomed circular warehouses, characterized in that, include: The central cofferdam (2) is set at the ground center of the circular silo (1) and can rotate around the axis of the circular silo; The movable truss (4) can be translated, with one end extending towards the central cofferdam (2) and the other end extending out of the round warehouse gate (1b); The material conveying auger (6) is set below the movable truss (4), and multiple support adjustment components (5) are fixed along its length. Each support adjustment component (5) has a support caster (5c) at its bottom that is supported on the ground. The central support (8) is provided with a slewing bearing (8a) at the top and is connected to the lower end of the movable truss (4) near the center of the silo via the slewing bearing (8a); the lower end is supported on the ground by the central support legs (8b) and the central support rollers (8c) at the bottom. The traveling mechanism (7) is installed on the rear side of the auger bracket (6a) of the material conveying auger (6) and is used to drive the material conveying auger (6) to rotate in the silo (1); The material lifting unit (9) is fixedly installed at one end of the movable truss (4) near the center of the silo, and is used to lift the material from the ground to a certain height; The belt conveyor (10) is fixedly installed in the movable truss (4) and located above the material conveying auger (6). Its inner end receives the material discharge from the material lifting unit (9), and its outer end extends along the movable truss (4) to the outside of the circular silo gate (1b).

2. The flat-bottomed circular warehouse mobile automated cleaning equipment according to claim 1, characterized in that: The bottom of the central cofferdam (2) is welded to the cofferdam base (2a), the cofferdam base (2a) is embedded in the bottom of the warehouse, and roller limiting plates (2b) are welded to the lower part of the inner wall near both ends of the central cofferdam (2).

3. The flat bottom circular bin mobile automated bin cleaning apparatus of claim 1, wherein: The central support (8) has a pair of central support legs (8b) on the front and rear sides of the horizontal top plate. The lower end of the central support legs (8b) is supported on the ground by the central support rollers (8c). The bottom of the movable truss (4) near the center of the silo is provided with a truss circular flange (4c). The truss circular flange (4c) is fixed to the upper flange of the slewing bearing (8a) by bolts.

4. The flat bottom circular bin mobile automated bin cleaning apparatus of claim 1, wherein: The rear side of the material conveying auger (6) is an auger support (6a). An auger drive motor (6b) is installed at the end of the auger support (6a) near the bin wall. The drive end of the auger drive motor (6b) drives the auger shaft (6d) to rotate through the transmission chain (6c). A bin wall support wheel (6e) is installed at the end of the auger support (6a) near the bin wall.

5. The flat bottom circular bin mobile automated bin cleaning apparatus of claim 1, wherein: The support adjustment assembly (5) includes a support housing (5a), with a housing top cover (5g) at the upper end of the support housing (5a). A pressure cap (5h) is screwed into the inner thread of the housing top cover (5g). A support spring (5e) is provided below the pressure cap (5h). A telescopic adjustment seat (5d) is provided at the lower end of the support spring (5e). An axially positioned and rotatable telescopic adjustment screw (5f) is inserted into the center hole of the pressure cap (5h). The lower end of the telescopic adjustment screw (5f) is screwed into the center thread hole of the telescopic adjustment seat (5d). A square tube (5b) is welded to the lower end of the telescopic adjustment seat (5d). The square tube (5b) extends from the lower port of the support housing (5a) and the lower end is equipped with the support caster wheel (5c).

6. The flat bottom circular bin mobile automated bin cleaning apparatus of claim 1, wherein: The walking mechanism (7) includes a walking motor (7a), a walking reducer (7b), a walking drive shaft (7c), and a walking wheel (7d). The rotor shaft of the walking motor (7a) is connected to the input end of the walking reducer (7b), and the output end of the walking reducer (7b) is connected to the walking drive shaft (7c). The walking wheel (7d) is mounted on the walking drive shaft (7c).

7. The flat bottom circular bin mobile automated bin cleaning apparatus of claim 6, wherein: The traveling wheel (7d) includes at least three hubs (7d1). The circumference of each hub (7d1) is connected as a whole by evenly distributed angle steels (7d2). Wear-resistant plates (7d3) are fixed to the vertical sides of each angle steel (7d2) by bolts. The outer edge of each wear-resistant plate (7d3) extends beyond the outer diameter of the hub (7d1). The support points of the vertical sides of each angle steel (7d2) are embedded in the radial grooves of the hub (7d1) and welded together.

8. The flat bottom circular bin mobile automated bin cleaning apparatus of claim 1, wherein, The central support (8) also includes a central support guard plate (8d). One end of the central support guard plate (8d) has a semi-circular clearance groove that corresponds to the discharge end of the auger shaft (6d). The other end of the central support guard plate (8d) is bent toward the direction of the central cofferdam (2).

9. The flat bottom circular bin mobile automated bin cleaning apparatus of claim 1, wherein, The material lifting unit (9) includes a lifting motor (9a), a spiral lifting section (9b), and a rotary feed head (9d). The spiral lifting section (9b) is a vertical auger. The lifting motor (9a) is installed above the spiral lifting section (9b). The rotary feed head (9d) is rotatably connected below the spiral lifting section (9b) and is coaxial with the spiral lifting section (9b).

10. The flat-bottomed circular warehouse mobile automated cleaning equipment according to claim 9, characterized in that, An external gear ring (9d1) is fixed on the upper outer periphery of the rotary feed head (9d), and a feeding gear is meshed on one side of the external gear ring (9d1). The feeding gear is driven by a feed head drive motor (9c), which is mounted on a bracket on the lower outer periphery of the spiral lifting section (9b). A plurality of feed inlets (9d2) extending outward tangentially are symmetrically arranged on the lower circumference of the rotary feed head (9d).

11. The flat bottom circular bin mobile automated bin cleaning apparatus of claim 9, wherein, The spiral lifting section (9b) and the rotary feed head (9d) can be radially translated along the central cofferdam (2) under the drive of the reciprocating motion assembly (9e).

12. The flat bottom circular bin mobile automated bin cleaning apparatus of claim 11, wherein, The reciprocating motion assembly (9e) includes a horizontal guide rod (9e1), a slide (9e2), a reciprocating motor reducer (9e3), and a lead screw (9e4). The two horizontal guide rods (9e1) are parallel to the width direction of the movable truss (4). The slide (9e2) has guide holes on both sides. The horizontal guide rods (9e1) pass through the guide holes of the slide (9e2) and are fixed at both ends to the movable truss (4). The lead screw (9e4) is connected to the middle of the slide (9e2) and is driven by the reciprocating motor reducer (9e3). The cylinder of the spiral lifting section (9b) passes through the center hole of the slide (9e2) and is fixedly connected.

13. The flat bottom circular bin mobile automated bin cleaning apparatus of claim 1, wherein, The upper part of the inner end of the movable truss (4) is also fixed with a chute (4d) for diverting the material sent out by the material lifting unit (9) to the belt conveyor (10) and sending it out of the round silo gate (1b).

14. The flat bottom circular bin mobile automated bin cleaning apparatus of claim 4, wherein, The material conveying auger (6) is also equipped with a sensor to detect whether there is still material around the material auger shaft (6d). When the sensor detects that there is no material, it triggers the walking mechanism (7) to move forward.

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