A combined type matching tool for a classifier rotor

Abstract

This utility model belongs to the field of air classifier manufacturing technology, and particularly relates to a combined assembly tooling for air classifier rotors. The combined assembly tooling for air classifier rotors includes a base, a limiting seat on the base, a central shaft inside the limiting seat, a pressure plate fitted on the upper part of the central shaft, and a locking nut threaded onto the central shaft above the pressure plate. Multiple uprights are arranged on the base outside the limiting seat, and limiting rings are arranged on the base outside the uprights. During the assembly of the air classifier rotors, the two ends of the central cylinder of the air classifier rotor abut against the limiting seat and the pressure plate, respectively; the upper and lower plates of the air classifier rotor abut against the limiting rings and the upper ends of the uprights, respectively; and the blades of the air classifier rotor abut against the base, with their inner surfaces abutting against the outer surfaces of the limiting rings. This utility model adopts a combined structure, and by replacing different components, it can meet the assembly requirements of various types of air classifier rotors, significantly improving the manufacturing precision and efficiency of air classifier rotors.

Description

Technical Field

[0001] This utility model belongs to the field of air classifier manufacturing technology, and in particular relates to a combined assembly tooling for an air classifier rotor. Background Technology

[0002] Air classifiers are crucial equipment in the powder preparation industry. The air classifier rotor, as the core moving component, directly determines the system's classification efficiency and energy consumption level through its assembly accuracy. Existing air classifier rotors can be found in [reference needed]. Figure 7 As shown, the classifier rotor 8 includes a vertically arranged central cylinder 84, an upper plate 82 and a lower plate 85 that are parallel to each other and horizontally arranged on the central cylinder 84, and blades 81 connecting the upper plate 82 and the lower plate 85. Reinforcing ribs 84 are welded between the upper plate 82 and the lower plate 85 and the central cylinder 83. When machining the classifier rotor 8, the upper plate 82 and the lower plate 85 need to be welded to the central cylinder 84, and the blades 81 need to be welded to the upper plate 82 and the lower plate 85. Therefore, this process requires assembling and welding the various components of the classifier rotor 8. In traditional manual assembly, the dimensional and geometric tolerances of the classifier rotor cannot be effectively guaranteed, resulting in a low rate of parts with good quality. Furthermore, due to the lack of tooling assistance, the assembly efficiency is low. Utility Model Content

[0003] To address the technical problems existing in the prior art, this application provides a modular assembly tooling for classifier rotors. It adopts a modular structure and can meet the assembly requirements of various types of classifier rotors by replacing different components, significantly improving the manufacturing accuracy and efficiency of classifier rotors.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A combination assembly fixture for an air classifier rotor includes a base, a limiting seat fixedly connected to the middle of the base, a central shaft disposed within the limiting seat, a pressure plate sleeved on the upper part of the central shaft, and a locking nut threadedly connected to the central shaft above the pressure plate; multiple uprights fixedly connected to the base outside the limiting seat, and limiting rings disposed on the base outside the uprights; during the assembly of the air classifier rotor, the two ends of the middle cylinder of the air classifier rotor abut against the limiting seat and the pressure plate respectively, the upper and lower plates of the air classifier rotor abut against the limiting rings and the upper ends of the uprights respectively, and the blades of the air classifier rotor abut against the base with their inner surfaces abutting against the outer surfaces of the limiting rings.

[0006] Preferably, a positioning stop that matches the size of one end of the middle cylinder is provided on the upper end face of the limiting seat, and one end of the middle cylinder of the classifier rotor is inserted into the positioning stop of the limiting seat.

[0007] Preferably, a pressure plate positioning stop is provided on the lower end face of the pressure plate, which matches the size of the other end of the middle cylinder, and the other end of the middle cylinder of the classifier rotor is inserted into the pressure plate positioning stop.

[0008] Preferably, the central shaft is vertically fixedly inserted into the limiting seat.

[0009] Preferably, a first base stop that matches the size of the limiting seat is provided on the upper end face of the middle part of the base, and the limiting seat is fixedly embedded in the first base stop.

[0010] Preferably, the limiting ring includes an annular horizontal plate fixedly connected to the base and an annular vertical plate fixedly connected to the horizontal plate. The upper plate of the classifier rotor abuts against the upper end face of the vertical plate, and the inner side of the blades of the classifier rotor abuts against the outer side of the vertical plate.

[0011] Preferably, a second base stop is provided on the upper end face of the base on the outer side of the upright, and the inner side of the horizontal plate abuts against the second base stop.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model achieves the positioning and fixing of the middle cylinder of the air classifier rotor by setting a limiting seat, a central shaft, a pressure plate, and a locking nut; it achieves the positioning and support of the lower plate by setting a vertical rod; and it achieves the positioning and support of the upper plate and the positioning of the blades by setting a limiting ring. This utility model can improve the positioning accuracy of each component of the air classifier rotor, thereby significantly improving the manufacturing accuracy and efficiency of the air classifier rotor. In addition, the components of this utility model adopt a modular structure with the base, which can meet the assembly requirements of various models of air classifier rotors by replacing different components. Furthermore, this utility model has the advantages of saving equipment manufacturing costs and floor space, as well as novel structure and ease of use.

[0014] 2. This utility model facilitates the positioning and installation of the limiting seat on the base by setting a first base stop; facilitates the positioning and installation of the middle cylinder by setting a limiting seat positioning stop on the limiting platform and a pressure plate positioning stop on the pressure plate; and facilitates the positioning and installation of the limiting ring by setting a second base stop on the base, thereby further improving the assembly efficiency and assembly accuracy of the classifier rotor. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a side view of the structure of this utility model.

[0017] Figure 3This is a schematic diagram of the structure of the present invention when assembling the rotor of a classifier.

[0018] Figure 4 This is a schematic diagram of the base structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the limiting ring of this utility model.

[0020] Figure 6 This is a schematic diagram of the connection structure between the limiting seat and the central shaft of this utility model.

[0021] Figure 7 This is a schematic diagram of the structure of an existing air classifier rotor assembled using this utility model.

[0022] In the diagram: 1. Base; 11. First base stop; 12. Second base stop.

[0023] 2. Limit seat; 21. Limit plate; 22. Limit stage; 221. Limit seat positioning stop; 23. Limit seat through hole.

[0024] 3. Central axis

[0025] 4. Pressure plate, 41. Pressure plate positioning stop.

[0026] 5. Tighten the nut.

[0027] 6. Upright pole; 61. Connecting flange;

[0028] 7. Limiting ring; 71. Horizontal plate; 72. Vertical plate; 73. Reinforcing plate.

[0029] 8. Air classifier rotor; 81. Blades; 82. Upper plate; 83. Middle cylinder; 84. Reinforcing ribs; 85. Lower plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0032] See appendix Figures 1 to 5 As shown, a rotor assembly tooling for a classifier includes a base 1, which may be disc-shaped. A limiting seat 2 is fixedly connected to the middle of the base 1. Specifically, the limiting seat 2 includes a limiting disk 21 and a limiting platform 22 protruding from the limiting disk 21. The limiting disk 21 and the limiting platform 22 are integrally formed and coaxially arranged. A limiting seat through hole 23 is opened in the middle of the limiting seat 2, and a central shaft 3 is inserted into the limiting seat through hole 23 and fixed in the limiting seat 2 by welding. In this embodiment, in order to position the limiting seat 2 so that it can be fixedly installed on the base 1 by bolts, a first base stop 11 is provided on the upper end face of the middle part of the base 1. The first base stop 11 is formed by a circular groove on the upper end face of the base 1. The size of the first base stop 11 matches the size of the limiting seat 2, that is, the outer diameter of the limiting plate 21 matches the inner diameter of the first base stop 11. The limiting plate 21 can be detachably and is just locked in the first base stop 11.

[0033] A pressure plate 4 is slidably mounted on the upper part of the central shaft 3. The pressure plate 4 can be removed from the central shaft 3. A locking nut 5 is threaded onto the central shaft 3 above the pressure plate 4. See also Figure 3 As shown, when assembling the classifier rotor 8, the middle cylinder 83 of the classifier rotor 8 needs to be fitted onto the central shaft 3 above the limiting platform 22. In this embodiment, in order to position the middle cylinder 83 and improve its stability when fixed, a limiting seat positioning stop 221 matching the size of one end of the middle cylinder 83 is provided on the upper end face of the limiting platform 22 of the limiting seat 2. The limiting seat positioning stop 221 is formed by a circular groove opened on the upper end face of the limiting platform 22. The outer diameter of the middle cylinder 83 at this end is not greater than the inner diameter of the limiting seat positioning stop 221. A pressure plate positioning stop 41 matching the size of the other end of the middle cylinder 83 is provided on the lower end face of the pressure plate 4. The pressure plate positioning stop 41 is formed by a circular groove opened on the lower end face of the pressure plate 4. The outer diameter of the middle cylinder 83 at this end is not greater than the inner diameter of the pressure plate positioning stop 41. Therefore, one end of the middle cylinder 83 of the classifier rotor 8 is inserted into the positioning stop 221 of the limiting seat, and the other end is inserted into the positioning stop 41 of the pressure plate. It should be noted that, in order to improve the positioning accuracy of the middle cylinder 83, in this embodiment, the dimensions of the positioning stop 221 of the limiting seat and the positioning stop 41 of the pressure plate are designed such that the corresponding two ends of the middle cylinder 83 can be inserted precisely and can be disassembled.

[0034] To position and support the lower plate 85 of the classifier rotor 8, multiple vertically arranged, hollow uprights 6 are bolted to the upper surface of the base 1 outside the limiting seat 2. Connecting flanges 61 are horizontally welded to both ends of each upright 6. One end of the upright 6 is fixedly connected to the base 1, while the other end supports the lower plate 85. The number of uprights 6 can be adapted to the shape of the specific classifier rotor 8.

[0035] To position and support the upper plate 82 of the classifier rotor 8, and also to position the blades 81, a limiting ring 7 is provided on the base 1 outside the upright 6. Specifically, the limiting ring 7 includes a circular horizontal plate 71 that is horizontally fixed to the base 1 by bolts and a circular vertical plate 72 that is vertically welded to the horizontal plate 71. To improve the structural strength of the limiting ring 7, a reinforcing plate 73 may be welded between the horizontal plate 71 and the vertical plate 72.

[0036] Furthermore, to facilitate the installation of the limiting ring 7 at the designed position and improve the positioning accuracy of the blade 81, in this embodiment, a second base stop 12 is provided on the upper end face of the base 1 outside the upright 6. The second base stop 12 is formed by an annular groove opened on the base 1 outside the upright 6. The inner end face of the horizontal plate 71 abuts against the vertical side of the second base stop 12. When assembling the classifier rotor 8, the inner side face of the blade 81 abuts against the outer side face of the upright plate 72, the horizontal end face of one end of the blade 81 abuts against the upper end face of the base 1 inside the second base stop 12, and the upper plate 82 of the classifier rotor 8 abuts against the upper end face of the upright plate 72. It should be noted that in other embodiments, the limiting ring 7 can be a split structure, that is, it can be composed of multiple sets of horizontal plates 71, upright plates 72, and reinforcing plates 73, thereby facilitating the adaptation to classifier rotors of different sizes and shapes.

[0037] The working principle and process of this embodiment are as follows:

[0038] See Figure 3 As shown, it should be noted that due to the influence of the classifier's placement position during assembly (the classifier is placed upside down during assembly), the upper plate 82 of the classifier rotor 8 is set at... Figure 3 Below the center, the lower plate 85 of the classifier rotor 8 is set at... Figure 3 For ease of description, the "upper end face" and "lower end face" will be referred to as "the upper end face" in the following description. Figure 3 The top and bottom positions of each component are shown.

[0039] 1. As described above, fix the limiting seat 2, upright rod 6, and limiting ring 7 of the fixed central shaft 3 to the corresponding positions on the base 1 using bolts;

[0040] 2. Invert the middle cylinder 83 of the classifier rotor 8 and place it on the central shaft 3, and insert the lower end face of the middle cylinder 83 into the positioning stop 221 of the limit seat. Then, put the upper plate 82 and the lower plate 85 on the middle cylinder 83 in sequence. Adjust the upper plate 82 and the lower plate 85 so that the lower end face of the upper plate 82 abuts against the upper end face of the vertical plate 72, and the lower end face of the lower plate 85 abuts against the upper end face of the connecting flange 61 on the upper part of the vertical rod 6.

[0041] 3. Place the pressure plate 4 on the central shaft 3 and insert the upper end face of the middle cylinder 83 into the pressure plate positioning stop 41. Then install the locking nut 5 on the central shaft 3 and tighten it to press the pressure plate 4, thereby fixing the middle cylinder 83 between the limit seat 2 and the pressure plate 4.

[0042] 4. Assemble the reinforcing rib 84 and the blade 81. During assembly, the lower end face of the blade 81 is in close contact with the upper surface of the base 1 at the second base stop 12, and the inner side of the blade 81 is in close contact with the outer surface of the vertical plate 72.

[0043] 5. Spot weld all connection points of each component;

[0044] 6. After welding is completed, remove the locking nut 5 and pressure plate 4, and remove the welded classifier rotor 8 from this assembly.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A classifier rotor assembly set-up tooling comprising a base, characterised in that: A limiting seat is fixedly connected to the middle of the base, a central shaft is provided inside the limiting seat, a pressure plate is sleeved on the upper part of the central shaft, and a locking nut is threaded onto the central shaft above the pressure plate. Multiple uprights are fixedly connected to the base outside the limiting seat, and limiting rings are provided on the base outside the uprights; When assembling the classifier rotor, the two ends of the middle cylinder of the classifier rotor abut against the limiting seat and the pressure plate, respectively. The upper plate and lower plate of the classifier rotor abut against the limiting ring and the upper end of the upright, respectively. The blades of the classifier rotor abut against the base and their inner side abuts against the outer side of the limiting ring.

2. The combined assembly tooling for a classifier rotor according to claim 1, characterized in that: A positioning stop is provided on the upper end face of the limiting seat, which matches the size of one end of the middle cylinder. One end of the middle cylinder of the classifier rotor is inserted into the positioning stop of the limiting seat.

3. The combined assembly tooling for a classifier rotor according to claim 2, characterized in that: A positioning stop is provided on the lower end face of the pressure plate, which matches the size of the other end of the middle cylinder. The other end of the middle cylinder of the classifier rotor is inserted into the positioning stop of the pressure plate.

4. The combined assembly tooling for a classifier rotor according to claim 1, characterized in that: The central shaft is vertically fixed and inserted into the limiting seat.

5. The combined assembly tooling for a classifier rotor according to claim 1, characterized in that: A first base stop is provided on the upper middle part of the base, which matches the size of the limiting seat, and the limiting seat is fixedly embedded in the first base stop.

6. The combined assembly tooling for a classifier rotor according to claim 1, characterized in that: The limiting ring includes a horizontally fixed ring plate and a vertically fixed ring plate on the base. The upper plate of the classifier rotor abuts against the upper end face of the vertical plate, and the inner side of the blades of the classifier rotor abuts against the outer side of the vertical plate.

7. The combined assembly tooling for a classifier rotor according to claim 6, characterized in that: A second base stop is provided on the upper end face of the base on the outer side of the upright, and the inner side of the horizontal plate abuts against the second base stop.

Images