A cleaning device for a circular cone bottom bin

Abstract

The utility model relates to the field of circular conical bottom warehouse storage equipment, concretely relates to a kind of cleaning device for circular conical bottom warehouse, including walking track assembly, center ring support assembly, auger shaft assembly, slide contact line assembly.The walking track assembly is set along the intersection of circular conical bottom warehouse conical surface and straight surface, and walking track assembly includes track steel structure retaining wall, toothed track.The center ring support assembly is set in the lower part of circular conical bottom warehouse, and center ring support assembly includes slewing bearing, center support, power shield.Auger shaft assembly is hingedly fixed in the hinged fixed seat of center ring support through hinged shaft, and auger shaft assembly is divided into two layers, outer layer is auger shaft, and inner layer is walking transmission shaft.Auger shaft and walking transmission shaft are fixed by inner and outer cooperation through self-aligning roller bearing.Auger shaft assembly is driven by walking and auger rotation in circular conical bottom warehouse, and it is rotated in one side, generally revolves to carry out cleaning operation to the bottom plate material of warehouse.

Description

Technical Field

[0001] This utility model relates to the field of circular cone-bottom silo storage equipment, and specifically to a cleaning device for a circular cone-bottom silo. Background Technology

[0002] Currently, domestically produced circular conical-bottom silos generally lack cleaning devices. Because the bottom of these silos is a cone with an angle greater than 45 degrees, material typically flows out by gravity. However, in recent years, many domestic circular conical-bottom silos have used Brazilian soybeans, which have a high moisture content. Combined with slow material turnover, this has led to a buildup of compacted material on the conical surface, preventing gravity flow. If personnel were to enter to clean this, there would be almost no foothold, making cleaning extremely difficult. Furthermore, any collapse would pose a significant safety risk. Therefore, there is an urgent need for a cleaning device for circular conical-bottom silos to replace traditional manual cleaning, improve the working environment, and completely eliminate the safety risks associated with cleaning. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0004] To achieve this objective, the present invention adopts the following technical solution: Inside the steel structure hopper at the bottom of the circular conical silo, a welded equipment mounting base is used to install a cleaning device for the silo. This cleaning device is equipped with a revolution drive and a rotation drive. The revolution drive is used for the device to move within the circular silo and clean the material, while the rotation drive drives the device's own auger shaft to loosen any caking material, allowing it to flow by gravity to the bottom center inlet, thus completing the cleaning operation. This invention uses a coaxial arrangement of the rotation shaft and the revolution drive shaft, resulting in a simple structure. Furthermore, the movement utilizes a sprocket and toothed track pin drive, providing powerful propulsion and preventing slippage. This completely enables unmanned operation within the silo, solving the problem of requiring personnel to enter and clean the silo once the material cakings.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A cleaning device for a circular conical bottom silo includes a traveling track assembly, a central ring support assembly, an auger shaft assembly, a sliding contact line assembly, and a mounting base. The traveling track assembly is arranged along the junction of the conical surface and the straight surface of the circular conical bottom silo. A slewing bearing is provided at the bottom of the central ring support assembly, and the bottom of the slewing bearing is fixedly connected to the mounting base. The mounting base is welded and fixed to the bottom of the steel conical bucket of the circular conical bottom silo. The bottom of the auger shaft assembly is hinged to the auger shaft hinge seat of the central ring support assembly, and the top of the auger shaft assembly is engaged with the traveling track assembly. The sliding contact line assembly is installed and fixed below the central ring support assembly.

[0006] Furthermore, the walking track assembly includes a steel structure retaining wall, multiple toothed tracks, high-strength bolts, and support wheel limiting plates. The toothed tracks are fixed to the bolt mounting holes of the steel structure retaining wall by high-strength bolts. Multiple toothed tracks cover the entire circumference of the cone-bottom silo wall. The top of the auger shaft assembly meshes with the toothed tracks. The steel structure retaining wall can block the material stored in the cone-bottom silo from below the toothed tracks. The auger shaft assembly includes a rotatable tail support wheel. A detachable support wheel limiting plate is set around the corresponding position above the tail support wheel to ensure smooth engagement and movement of the equipment.

[0007] Furthermore, the central ring support assembly also includes an auger shaft hinge seat, a central ring support, and a protective cover. The slewing bearing is connected to the central ring support and the mounting base. The central ring support is mounted on the slewing bearing via flange bolts. The space inside the slewing bearing is used for material discharge from the central opening. An auger shaft hinge seat is welded inside the central ring support. The auger shaft hinge seat is hinged to the auger shaft assembly via a hinge shaft. The protective cover is used to protect the drive on the auger shaft assembly from being damaged by material impact.

[0008] Furthermore, the auger shaft assembly includes an auger shaft, a drive shaft, a large gear, a small gear, a gear cover, an auger drive assembly, a travel drive assembly, a hinge seat, a travel sprocket, a self-aligning roller bearing, a tail support wheel, and a hinge shaft. The auger shaft is the outer layer, and the drive shaft is coaxial with the auger shaft and built inside the auger shaft. Both the drive shaft and the auger shaft are connected by flanges, and the connecting bolts are high-strength bolts. The auger drive assembly drives the auger shaft to rotate through the open gear transmission of the large and small gears. The travel drive assembly, which is mounted on the drive shaft near the central ring bracket assembly, drives the travel sprocket to mesh with the toothed track arranged around it. The auger shaft and the drive shaft are connected by the internal and external fit of the self-aligning roller bearing. A tail support wheel is installed at the tail of the travel sprocket, which provides support for the auger shaft assembly to travel inside the cone-shaped chamber.

[0009] Furthermore, the conductor rail assembly includes an explosion-proof conductor rail, a conductor rail sleeve, a universal joint, a conductor rail mounting base, a lower slip ring bracket, and an outer retaining frame for the conductor rail cover. The explosion-proof conductor rail is used to supply power for the rotation of the traveling drive assembly and the auger drive assembly. The conductor rail sleeve is bolted to the outside of the explosion-proof conductor rail to cover it. The universal joint is a single cross-shaft universal joint. The lower flange is bolted to the upper part of the explosion-proof conductor rail, and the upper flange is bolted to the lower part of the central ring bracket. Both the explosion-proof conductor rail and the conductor rail sleeve are mounted on the conductor rail mounting base. The conductor rail mounting base is bolted to the lower slip ring bracket. The lower slip ring bracket is welded and fixed to the bottom of the circular conical bottom silo steel structure cone. The outer retaining frame for the conductor rail cover is bolted to the lower part of the central ring bracket.

[0010] Furthermore, the mounting base is used to support the cleaning device. The mounting base consists of a slewing bearing mounting plate, a circular ring plate, and stiffening plates. The slewing bearing mounting plate is used to install the slewing bearing. The slewing bearing mounting plate is welded to the circular ring plate, and multiple stiffening plates are evenly distributed and welded around the bottom of the circular ring plate.

[0011] The beneficial effects of this invention are as follows: By adding a fully automated, unmanned cleaning device to the existing circular conical-bottom silo, the pain point of needing manual entry to clean the material once it becomes compacted is solved, completely avoiding accidents caused by personnel entering the silo and increasing the efficiency of cleaning the circular conical-bottom silo. This invention can be used for the renovation of old silos as well as the construction of new silos, and has wide adaptability. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments of this utility model will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the installation state of this utility model.

[0014] Figure 2 This is a cross-sectional schematic diagram of the walking track assembly.

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the central ring support assembly.

[0016] Figure 4 This is a cross-sectional schematic diagram of the auger shaft assembly.

[0017] Figure 5 for Figure 4 A magnified view of part A.

[0018] Figure 6 for Figure 4 A magnified view of section B.

[0019] Figure 7 for Figure 4 A magnified view of a portion of point C.

[0020] Figure 8 This is a schematic diagram of the three-dimensional structure of the sliding contact line assembly.

[0021] Figure 9 This is a three-dimensional structural diagram of the mounting base.

[0022] Figure 10 This is a diagram of the interface at the center of the clearance device.

[0023] Figure 11 This is a diagram of the interface of the moving parts of the clearing device.

[0024] In the diagram: 1. Walking track assembly; 1a. Track steel structure retaining wall; 1b. Toothed track; 1c. High-strength bolts; 1d. Support wheel limit plate; 2. Central ring bracket assembly; 2a. Slewing bearing; 2b. Screw shaft hinge seat; 2c. Central ring bracket; 2d. Protective cover; 3. Screw shaft assembly; 3a. Screw shaft; 3b. Drive shaft; 3c. Large gear; 3d. Small gear; 3e. Gear cover; 3f. Screw drive assembly; 3g, Walking drive assembly; 3h, Hinge seat; 3j, Walking sprocket; 3k, Self-aligning roller bearing; 3m, Tail support wheel; 3n, Hinge shaft; 4, Sliding conductor rail assembly; 4a, Explosion-proof sliding conductor rail; 4b, Sliding conductor rail sleeve; 4c, Universal joint; 4d, Sliding conductor rail mounting seat; 4e, Lower support for slip ring; 4f, Outer retaining frame of sliding conductor rail cover; 5, Mounting base; 5a, Slewing bearing mounting plate; 5b, Circular ring plate; 5c, Rib plate. Detailed Implementation

[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0027] Reference Figures 1 to 6 The illustrated cleaning device for a circular conical bottom hopper includes a traveling track assembly 1, a central ring support assembly 2, an auger shaft assembly 3, a sliding contact line assembly 4, and a mounting base 5. The traveling track assembly 1 is arranged along the junction of the conical surface and the straight surface of the circular conical bottom hopper. The central ring support assembly 2 is fixedly installed on the mounting base 5. The mounting base 5 is welded and fixed to the bottom of the steel conical bucket of the circular conical bottom hopper. The auger shaft assembly 3 is hinged and fixed to the hinge seat 2b of the central ring support assembly 2. The sliding contact line assembly 4 is installed and fixed below the central ring support assembly 2.

[0028] Figure 2The diagram shown is a cross-sectional view of the walking track assembly. The walking track assembly 1 includes a steel structure retaining wall 1a, a toothed track 1b, high-strength bolts 1c, and a support wheel limiting plate 1d. The toothed track 1b is installed and fixed to the bolt mounting holes of the steel structure retaining wall 1a by the high-strength bolts 1c. The toothed track 1b covers the entire circumference of the cone-bottom silo wall. The steel structure retaining wall 1a can block the material stored in the cone-bottom silo from below the toothed track. A detachable support wheel limiting plate 1d is set around the circumference above the corresponding position of the tail support wheel 3m to ensure smooth engagement and movement of the equipment.

[0029] Figure 3 The diagram shows a three-dimensional structural representation of the central ring support assembly 2. The central ring support assembly 2 includes a slewing bearing 2a, an auger shaft hinge seat 2b, a central ring support 2c, and a protective cover 2d. The slewing bearing 2a supports the central ring support 2c. The slewing bearing 2a is mounted below the central ring support 2c via flange bolts, and the space within the slewing bearing 2a is used for material discharge from the central opening. The auger shaft hinge seat 2b is welded inside the central ring support 2c. The auger shaft hinge seat 2b is hinged to the auger shaft assembly 3 via a hinge shaft 3n. The protective cover 2d protects the drive mechanism on the auger shaft assembly 3 from damage by material impact, and reinforcing ribs are provided inside the protective cover 2d.

[0030] Figure 4 The schematic cross-sectional view of the auger shaft assembly shown indicates that the auger shaft assembly 3 includes an auger shaft 3a, a drive shaft 3b, a large gear 3c, a small gear 3d, a gear cover 3e, an auger drive assembly 3f, a travel drive assembly 3g, a hinge seat 3h, a travel sprocket 3j, a self-aligning roller bearing 3k, a tail support wheel 3m, and a hinge shaft 3n. The auger shaft 3a is the outer layer, driven to rotate by the open gear transmission of the large gear 3c and the small gear 3d. The drive shaft 3b is coaxial with the auger shaft 3a and is built inside the auger shaft 3a. It drives the travel sprocket 3j through the travel drive assembly 3g, which is mounted on the drive shaft 3b near the central ring bracket assembly 2, and the sprocket 3j meshes with the toothed track 1b surrounding the auger shaft. The auger shaft 3a and the drive shaft 3b are connected by the self-aligning roller bearing 3k. Both the drive shaft 3b and the auger shaft 3a are connected by flanges, and the connecting bolts are high-strength bolts. A tail support wheel 3m is installed at the tail of the traveling sprocket 3j, which provides support for the auger shaft assembly 3 inside the conical silo. The blades on the auger shaft 3a have a thickness of 6~16mm and a diameter range of Ø300mm~Ø1000mm, depending on the material characteristics and the silo diameter. The auger shaft assembly 3, through the cooperation of the traveling drive and the auger rotation drive, rotates on its own axis and generally revolves around the silo inside the circular conical silo to clean the caking material at the bottom of the silo.

[0031] Figure 5The diagram shows a three-dimensional structural schematic of the sliding conductor rail assembly. The sliding conductor rail assembly 4 includes an explosion-proof sliding conductor rail 4a, a sliding conductor rail sleeve 4b, a universal joint 4c, a sliding conductor rail mounting base 4d, a lower sliding ring support 4e, and an outer baffle 4f of the sliding conductor rail cover. The explosion-proof sliding conductor rail 4a can be used in a Zone 21 dust explosion-proof environment. The sliding conductor rail sleeve 4b is bolted to the outside of the explosion-proof sliding conductor rail 4a to enclose it. The universal joint is a single cross-shaft universal joint. The lower flange is bolted to the upper part of the explosion-proof sliding conductor rail 4a, and the upper flange is bolted to the lower part of the central ring support 2c. Both the explosion-proof sliding conductor rail 4a and the sliding conductor rail sleeve 4b are mounted on the sliding conductor rail mounting base 4d. The sliding conductor rail mounting base is bolted to the lower sliding ring support 4e. The lower sliding ring support 4e is welded and fixed to the bottom of the circular conical bottom silo steel structure cone. The outer baffle 4f of the sliding conductor rail cover is bolted to the lower part of the central ring support 2c.

[0032] Figure 6 The diagram shows a three-dimensional structural schematic of the mounting base. The mounting base 5 mainly supports the cleaning device. The mounting base consists of a slewing bearing mounting plate 5a, a circular ring plate 5b, and stiffening plates 5c. The slewing bearing mounting plate 5a is used to mount the slewing bearing 2a. The slewing bearing mounting plate 5a is welded to the circular ring plate 5b. A certain number of stiffening plates 5c are evenly distributed and welded around the bottom of the circular ring plate 5b. At the same time, the circular ring plate 5b and the stiffening plates 5c are both welded to the bottom of the conical hopper of the circular conical bottom silo steel structure.

[0033] Figure 7 The diagram shows the interface of the central part of the clearing device. The auger shaft assembly 3 is hinged and fixed on the hinge seat 2b of the central ring support assembly 2. The sliding contact line assembly 4 is installed and fixed below the central ring support assembly 2. The central ring support assembly 2 is fixedly installed on the mounting base 5. The mounting base 5 is welded and fixed to the bottom of the circular conical bottom silo steel structure cone bucket.

[0034] Figure 8 The diagram shows the interface of the moving parts of the cleaning device. The moving track assembly 1 is positioned along the junction of the conical surface and the straight surface of the circular conical bottom chamber. The moving drive assembly 3g on the drive shaft 3b drives the moving sprocket 3j, which meshes with the toothed track 1b arranged around it. A tail support wheel 3m is installed at the tail of the moving sprocket 3j, which provides support for the auger shaft assembly 3 inside the conical bottom chamber. An axial play distance needs to be provided in the moving groove of the tail support wheel 3m to compensate for installation errors of the moving track.

[0035] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A cleaning device for a circular conical-bottom silo, characterized in that, The assembly includes a walking track assembly (1), a central ring support assembly (2), an auger shaft assembly (3), a sliding contact line assembly (4), and a mounting base (5). The walking track assembly (1) is set along the junction of the conical surface and the straight surface of the circular conical bottom chamber. The bottom of the central ring support assembly (2) is provided with a slewing bearing (2a). The bottom of the slewing bearing (2a) is fixedly connected to the mounting base (5). The mounting base (5) is welded and fixed to the bottom of the steel structure cone bucket of the circular conical bottom chamber. The bottom of the auger shaft assembly (3) is hinged to the auger shaft hinge seat (2b) of the central ring support assembly (2). The top of the auger shaft assembly (3) is engaged with the walking track assembly (1). The sliding contact line assembly (4) is installed and fixed below the central ring support assembly (2).

2. The cleaning device for a circular conical bottom silo according to claim 1, characterized in that: The walking track assembly (1) includes a track steel structure retaining wall (1a), multiple toothed tracks (1b), high-strength bolts (1c), and support wheel limiting plates (1d). The toothed tracks (1b) are installed and fixed on the bolt mounting holes of the steel structure retaining wall (1a) by the high-strength bolts (1c). Multiple toothed tracks (1b) cover the entire circle of the cone bottom silo wall. The top of the auger shaft assembly (3) meshes with the toothed tracks (1b). The steel structure retaining wall (1a) can block the material stored in the cone bottom silo under the toothed tracks. The auger shaft assembly (3) includes a rotatable tail support wheel (3m). A detachable support wheel limiting plate (1d) is set around the corresponding position above the tail support wheel (3m) to ensure that the equipment can mesh and move smoothly.

3. The cleaning device for a circular conical bottom silo according to claim 1, characterized in that: The central ring support assembly (2) also includes an auger shaft hinge seat (2b), a central ring support (2c), and a protective cover (2d). The slewing bearing (2a) is connected to the central ring support (2c) and the mounting base (5). The central ring support (2c) is mounted on the slewing bearing (2a) by flange bolts. The space inside the slewing bearing (2a) is used for the discharge of material from the central opening. The auger shaft hinge seat (2b) is welded inside the central ring support (2c). The auger shaft hinge seat (2b) is hinged to the auger shaft assembly (3) through the hinge shaft (3n). The protective cover (2d) is used to protect the drive on the auger shaft assembly (3) from being damaged by the material.

4. A cleaning device for a circular conical bottom silo according to claim 1, characterized in that: The auger shaft assembly (3) includes an auger shaft (3a), a drive shaft (3b), a large gear (3c), a small gear (3d), a gear cover (3e), an auger drive assembly (3f), a travel drive assembly (3g), a hinge seat (3h), a travel sprocket (3j), a self-aligning roller bearing (3k), a tail support wheel (3m), and a hinge shaft (3n). The auger shaft (3a) is set as the outer layer, and the drive shaft (3b) is coaxial with the auger shaft (3a) and built into the auger shaft (3a). Both the drive shaft (3b) and the auger shaft (3a) are connected by flanges, and the connecting bolts are high-strength bolts. (3f) The auger shaft (3a) is driven to rotate by the open gear transmission of the large gear (3c) and the small gear (3d). The walking drive assembly (3g) is set on the drive shaft (3b) near the central ring bracket assembly (2) to drive the walking sprocket (3j) to mesh with the toothed track (1b) set around it. The auger shaft (3a) and the drive shaft (3b) are connected by the internal and external fit of the self-aligning roller bearing (3k). A tail support wheel (3m) is installed at the tail of the walking sprocket (3j). The tail support wheel (3m) plays the role of walking support for the auger shaft assembly (3) inside the cone bottom chamber.

5. A cleaning device for a circular conical bottom silo according to claim 1, characterized in that: The conductor rail assembly (4) includes an explosion-proof conductor rail (4a), a conductor rail sleeve (4b), a universal joint (4c), a conductor rail mounting base (4d), a slip ring lower bracket (4e), and an outer retainer (4f) for the conductor rail cover. The explosion-proof conductor rail (4a) is used to supply power for the rotation of the travel drive assembly (3g) and the auger drive assembly (3f). The conductor rail sleeve (4b) is bolted to the outside of the explosion-proof conductor rail (4a) to cover it. The universal joint is a single cross-axis universal joint. The lower flange is bolted to the upper part of the explosion-proof sliding conductor rail (4a), and the upper flange is bolted to the lower part of the central ring bracket (2c). The explosion-proof sliding conductor rail (4a) and the sliding conductor rail sleeve (4b) are both installed on the sliding conductor rail mounting seat (4d). The sliding conductor rail mounting seat is bolted to the lower sliding ring bracket (4e). The lower sliding ring bracket (4e) is welded and fixed to the bottom of the circular cone bottom silo steel structure cone bucket. The outer baffle of the sliding conductor rail cover (4f) is bolted to the lower part of the central ring bracket (2c).

6. A cleaning device for a circular conical bottom silo according to claim 1, characterized in that: The mounting base (5) is used to support the cleaning device. The mounting base consists of a slewing bearing mounting plate (5a), a ring plate (5b), and stiffeners (5c). The slewing bearing mounting plate (5a) is used to mount the slewing bearing (2a). The slewing bearing mounting plate (5a) is welded to the ring plate (5b). Multiple stiffeners (5c) are evenly distributed and welded around the ring plate (5b).

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