A screw rotor inner support bracket

Abstract

The utility model relates to drying machine technical field especially relates to a screw rotor inner support support, including upper support cylinder and lower support cylinder, both include end portion support round plate, a plurality of annular inner support rings and a plurality of longitudinal inner support ribs, a plurality of annular inner support rings are evenly set along the extension direction of upper support cylinder, lower support cylinder, and the annular inner support ring of upper support cylinder butt joint place is fixed between the annular inner support ring of lower support cylinder butt joint place, a plurality of longitudinal inner support ribs are fixed and set at the outer edge of annular inner support ring and form the cylinder, and end portion support round plate is fixed and set at the end portion of upper support cylinder longitudinal inner support rib, lower support cylinder longitudinal inner support rib. The utility model provides the structure light weight, and the support force is even, and the screw rotor with screw rotor inner support support is not easy to deform, and the carrying capacity is strong, and the stability of equipment operation is improved.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, and in particular to an internal support bracket for a spiral rotor. Background Technology

[0002] The core principle of a centrifugal dryer is that as particles rise through a spiral rotor, they are thrown onto a screen by the centrifugal force of the rotor. After impacting and losing water, they return to the rotor blades for repeated impacts, thus achieving the drying purpose. Centrifugal dryers typically use unsupported, hollow, thin-walled cylindrical rotors. Due to the lack of internal support, the cylinder can experience localized dents, deformation, and insufficient load-bearing capacity when subjected to water pressure and particle impact. Resonance can also easily occur during high-speed rotor rotation, affecting the stability of the equipment. Furthermore, the absence of internal support during the welding of the spiral rotor and the blades to the cylinder makes the cylinder more susceptible to deformation due to welding deformation and internal stress. Subsequent deformation is difficult to control and correct, affecting the dimensional and positional accuracy of the spiral rotor and reducing the overall quality and service life of the equipment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a spiral rotor inner support bracket that is lightweight, provides uniform support force, and when used with a spiral rotor, the spiral rotor is not easily deformed and has a strong load-bearing capacity, thereby improving the stability of equipment operation.

[0004] This utility model is achieved through the following solution:

[0005] A spiral rotor internal support bracket includes two upper support cylinders and a lower support cylinder assembled together. Each of the upper and lower support cylinders includes an end support circular plate, multiple annular internal support rings, and multiple longitudinal internal support ribs. The multiple annular internal support rings are evenly arranged along the extending direction of the upper and lower support cylinders, and annular internal support rings are provided at the joints of the upper and lower support cylinders. The annular internal support rings at the joints of the upper and lower support cylinders are fixedly connected to each other. The multiple longitudinal internal support ribs are fixedly disposed at the outer edge of the annular internal support rings to form a cylindrical shape. The end support circular plate is fixedly disposed at the end of the longitudinal internal support ribs of the upper and lower support cylinders.

[0006] Furthermore, the annular inner support ring at the joint of the upper support cylinder and the annular inner support ring at the joint of the lower support cylinder are provided with a positioning boss and a positioning groove on their outer edges. The positioning boss is inserted into the positioning groove, and the annular inner support ring at the joint of the upper support cylinder and the annular inner support ring at the joint of the lower support cylinder are fixedly connected by bolts on the inner side of the positioning boss.

[0007] In the optimized configuration, the longitudinal inner bracing ribs are provided with multiple slots, and the multiple annular inner bracing rings are inserted into the corresponding slots and welded in place.

[0008] Furthermore, each of the longitudinal inner bracing ribs has an end support circular plate reinforcing plate at its outer end, and the end support circular plate is fixedly connected to the end support circular plate reinforcing plate.

[0009] Beneficial effects of the utility model:

[0010] This utility model provides a spiral rotor inner support bracket. The structure of the annular inner support ring and the longitudinal inner support rib gives the spiral rotor inner support bracket good load-bearing capacity and deformation resistance in both radial and axial directions. It can effectively disperse water pressure and particle impact pressure, avoid local stress concentration, and when used in the spiral rotor of a dryer, it can significantly improve the strength and rigidity of the spiral rotor and effectively improve the problem of easy deformation of the spiral rotor of the centrifugal dryer. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the internal support structure of the spiral rotor of this utility model.

[0012] Figure 2 This is an enlarged structural diagram of the N parts of this utility model.

[0013] In the figure: 1. Spiral rotor inner support bracket; 11. Lower support cylinder; 12. Upper support cylinder; 13. Longitudinal inner support rib; 14. End support circular plate; 15. End support circular plate reinforcing plate; 16. Annular inner support ring; 17. Positioning groove; 18. Positioning boss; 19. Slot. Detailed Implementation

[0014] A schematic diagram of a spiral rotor internal support is shown below. Figure 1 , Figure 2 As shown, the system includes two upper support cylinders 12 and lower support cylinders 11 assembled together. Each of the upper and lower support cylinders includes an end support circular plate 14, multiple annular inner support rings 16, and multiple longitudinal inner support ribs 13. The multiple annular inner support rings are evenly arranged along the extension direction of the upper and lower support cylinders, and annular inner support rings are provided at the joints of the upper and lower support cylinders. The annular inner support rings at the joints of the upper and lower support cylinders are fixedly connected to each other. The multiple longitudinal inner support ribs are fixedly disposed at the outer edge of the annular inner support rings to form a cylinder shape. The end support circular plate is fixedly disposed at the ends of the longitudinal inner support ribs of the upper and lower support cylinders.

[0015] The spiral rotor inner support bracket provided by this utility model, through the combination of annular inner support ring and longitudinal inner support rib, enables the spiral rotor inner support bracket to have good load-bearing capacity and anti-deformation capacity in both radial and axial directions, and the support force is uniform. When applied to the spiral rotor of a centrifugal dryer, it can effectively disperse the impact pressure of water pressure and particles, avoid local stress concentration, and is of great significance for improving the deformation problem of spiral rotor and improving the load-bearing capacity and running accuracy of spiral rotor.

[0016] Furthermore, the spiral rotor inner support bracket, which is formed by the combination of the annular inner support ring and the longitudinal inner support rib, is relatively lightweight, which can effectively reduce the power loss of the equipment, thereby reducing the configuration of the centrifugal dryer motor and avoiding resource waste.

[0017] The end support circular plate facilitates the installation of bearings on the helical rotor, which are then connected to the motor shaft and other equipment.

[0018] Furthermore, the annular inner support ring at the joint of the upper support cylinder and the annular inner support ring at the joint of the lower support cylinder are provided with a positioning boss 18 and a positioning groove 17 that cooperate with each other on the outer edge. The positioning boss is inserted into the positioning groove, and the annular inner support ring at the joint of the upper support cylinder and the annular inner support ring at the joint of the lower support cylinder are fixedly connected by bolts on the inner side of the positioning boss.

[0019] The positioning boss and positioning groove make the docking between the upper support cylinder and the lower support cylinder more convenient, faster and more stable and reliable.

[0020] In the optimized configuration, the longitudinal inner bracing ribs are provided with multiple slots 19, and the multiple annular inner bracing rings are inserted into the corresponding slots and welded and fixed, which makes the connection between the annular inner bracing rings and the longitudinal inner bracing ribs more stable and reliable.

[0021] Furthermore, each of the longitudinal inner bracing ribs is provided with an end support circular plate reinforcing plate 15 at its outer end, and the end support circular plate is fixedly connected to the end support circular plate reinforcing plate.

[0022] The spiral rotor internal support bracket provided by this utility model can be used in both horizontal and vertical centrifugal dryers. When applied to a vertical centrifugal dryer... Figure 1 With the right side above and the left side below, the right side is called the upper support cylinder and the left side is called the lower support cylinder. Because it is used in vertical centrifugal dryers, it experiences significant axial pressure, especially at the bottom. Therefore, end support circular plates are provided at the outer ends of the longitudinal inner support ribs. These end support circular plates are fixedly connected to each other, further strengthening the support strength of the spiral rotor's inner support bracket.

[0023] In summary, the spiral rotor inner support bracket proposed in this utility model is relatively lightweight, which can reduce the power loss of the equipment, and provides uniform support force, effectively improving the problem of easy deformation of the spiral rotor of the centrifugal dryer.

[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A spiral rotor internal support bracket, characterized in that: The system includes two upper and lower support cylinders assembled together. Each upper and lower support cylinder includes an end support circular plate, multiple annular inner support rings, and multiple longitudinal inner support ribs. The multiple annular inner support rings are evenly arranged along the extension direction of the upper and lower support cylinders, and annular inner support rings are provided at the joint of the upper and lower support cylinders. The annular inner support rings at the joint of the upper support cylinder and the annular inner support rings at the joint of the lower support cylinder are fixedly connected. The multiple longitudinal inner support ribs are fixedly arranged at the outer edge of the annular inner support rings to form a cylinder shape. The end support circular plate is fixedly arranged at the end of the longitudinal inner support ribs of the upper and lower support cylinders.

2. The helical rotor inner support bracket according to claim 1, characterized in that: The annular inner support ring at the joint of the upper support cylinder and the annular inner support ring at the joint of the lower support cylinder are provided with a positioning boss and a positioning groove on their outer edges. The positioning boss is inserted into the positioning groove, and the annular inner support ring at the joint of the upper support cylinder and the annular inner support ring at the joint of the lower support cylinder are fixedly connected by bolts on the inner side of the positioning boss.

3. The helical rotor inner support bracket according to claim 1, characterized in that: The longitudinal inner support ribs are provided with multiple slots, and the multiple annular inner support rings are inserted into the corresponding slots and welded to be fixed.

4. The spiral rotor internal support bracket according to claim 1, characterized in that: Each of the longitudinal inner bracing ribs has an end support circular plate reinforcing plate at its outer end, and the end support circular plate is fixedly connected to the end support circular plate reinforcing plate.

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