A double-shaft reverse sludge mixing agitator

By setting an inlay groove and a positioning ring snap-fit ​​structure on the surface of the rotating shaft, the problems of troublesome installation of the stirring blades and corrosion of the fastening bolts are solved, and convenient blade replacement and bolt protection are achieved.

CN224672510UActive Publication Date: 2026-08-25ANHUI YUENUO ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD
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Patent Information

Application Number
CN202522127033.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-09
Publication Date
2026-08-25
Estimated Expiration
2035-10-09

AI Technical Summary

Technical Problem

The installation and replacement of the mixing blades in traditional twin-shaft reverse sludge mixers are relatively troublesome, and the fastening bolts are prone to corrosion and damage.

Method used

An inlay groove is provided on the surface of the rotating shaft to facilitate the fixing of the positioning plate of the stirring blade. Upper and lower positioning rings and a snap-fit ​​structure are used to protect the fastening bolts and prevent them from contacting the sludge.

Benefits of technology

It simplifies the installation and replacement process of the mixing blades, prevents corrosion and damage to the fastening bolts, and improves the ease of maintenance and durability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is suitable for mixed stirrer technical field provides a kind of double-shaft reverse sludge mixing stirrer, including;Mixed bin;The rotation axis is arranged in the inside of mixed bin;Speed reducer, the speed reducer is arranged in the left side of mixed bin, and is connected with rotation axis transmission;Motor, the motor is arranged in the left side of speed reducer, and is connected with speed reducer transmission;Rabbet, the rabbet circumferential array is opened in the both ends of rotation axis;Inlay groove, the inlay groove circumferential array is opened in the surface of rabbet and rotation axis;Positioning plate.Compared with prior art, the beneficial effects of the utility model are: when using, by setting inlay groove on the surface of rotation axis, so as to be convenient, the positioning plate with stirring vane is placed in inlay groove, then fastening bolt is used to fix the positioning plate, to avoid, in traditional technology, stirring vane needs to be installed on the surface of rotation axis one by one, and the installation and replacement are troublesome.
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Description

Technical Field

[0001] This utility model belongs to the technical field of mixing and stirring devices, and particularly relates to a dual-shaft reverse sludge mixing and stirring device. Background Technology

[0002] The dual-shaft reverse sludge mixer is a mixing device equipped with dual shafts that reverse and rotate in opposite directions, thereby generating a high-intensity shearing force on the material. This causes the sludge material to undergo strong physical shearing and reorganization during the mixing process, resulting in the mixing of the sludge.

[0003] The dual shafts inside the twin-shaft reverse sludge mixer are equipped with multiple mixing blades. As the mixing blades are damaged due to factors such as usage frequency, hardness of the mixed material, and blade quality, they need to be replaced and maintained regularly. However, since traditional mixing blades are installed one by one on the rotating shaft surface with bolts, maintenance and replacement are quite troublesome.

[0004] Therefore, how to provide a dual-shaft reverse sludge mixing agitator is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a dual-shaft reverse sludge mixing agitator, which aims to solve the problems mentioned in the background art.

[0006] This utility model is implemented as follows: a dual-shaft reverse sludge mixing agitator, comprising;

[0007] Mixed storage;

[0008] Rotating shafts, the array of rotating shafts being disposed inside the mixing chamber;

[0009] A speed reducer is located on the left side of the mixing chamber and is connected to the rotating shaft drive.

[0010] The motor is located on the left side of the reducer and is connected to the reducer in a transmission manner;

[0011] The ribs and grooves are arranged in a circumferential array at both ends of the rotating shaft;

[0012] The inlay grooves are arranged in a circumferential array on the surfaces of the ridge groove and the rotating shaft;

[0013] A positioning plate is placed inside the inlay groove, and fastening bolts are provided at the middle of both ends to connect to the rotating shaft;

[0014] Stirring blades, the array of stirring blades being disposed on the surface of the positioning plate.

[0015] Preferably, an upper positioning ring and a lower positioning ring are symmetrically arranged on the upper and lower surfaces of the groove. The right ends of the upper and lower positioning rings are movably hinged. A first spring is arranged in an array on the inner side of the right end of the upper and lower positioning rings. A snap-fit ​​structure is symmetrically arranged on the inner side of the left end of the upper and lower positioning rings to protect the fastening bolts.

[0016] Preferably, the snap-fit ​​structure includes a first positioning block, a second positioning block, and a groove. The second positioning block is fixedly installed on the inner side of the left end of the upper positioning ring, and the first positioning block is fixedly installed on the inner side of the left end of the lower positioning ring and movably abuts against the surface of the second positioning block. The groove is formed on the surface of the left end of the lower positioning ring. A T-shaped hook is provided inside the groove and the first positioning block and movably snaps against the second positioning block. A second spring is provided between the T-shaped hook and the first positioning block.

[0017] Preferably, the inner circumferential array of the upper and lower positioning rings is provided with positioning protrusions, and the inner side of the positioning protrusions is in movable contact with the surface of the groove.

[0018] Preferably, an elastic protective membrane is fixedly installed on the outer side of the groove, and the top of the T-shaped hook is movably abutting against the inner side of the elastic protective membrane.

[0019] Preferably, the outer diameter of the upper positioning ring is equal to the diameter of the rotating shaft, and the inner diameter of the upper positioning ring is equal to the spacing between the relative grooves.

[0020] Preferably, the width of the upper positioning ring is equal to the width of the groove, and a sealing ring is provided between the edge of the upper positioning ring and the groove.

[0021] Compared with the prior art, the beneficial effects of this utility model are: during use, by setting an inlay groove on the surface of the rotating shaft, it is convenient to place the positioning plate with stirring blades into the inlay groove, and then fix the positioning plate with fastening bolts, thereby avoiding the troublesome installation and replacement caused by the traditional technology that requires each stirring blade to be installed on the surface of the rotating shaft.

[0022] Meanwhile, by symmetrically opening grooves at both ends of the rotating shaft, and setting upper and lower positioning rings on the surface of the grooves to protect the fastening bolts on the grooves and their surfaces, the fastening bolts are prevented from coming into contact with impurities such as silt, which could lead to corrosion and damage. Furthermore, a snap-fit ​​structure is set on the inner side of the upper and lower positioning rings, which can fix the angle of the upper and lower positioning rings, thereby facilitating the installation and disassembly of the upper and lower positioning rings. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 A schematic diagram of the overall appearance structure of a dual-shaft reverse sludge mixing agitator provided in an embodiment of this utility model;

[0025] Figure 2 A schematic diagram of the left cross-sectional structure of a dual-shaft reverse sludge mixing agitator provided in an embodiment of this utility model;

[0026] Figure 3 A schematic diagram of the overall appearance of the protective structure of a dual-shaft reverse sludge mixing agitator provided in an embodiment of this utility model;

[0027] Figure 4 A schematic diagram of the main cross-sectional structure of the protective structure of a dual-shaft reverse sludge mixing agitator provided in this embodiment of the present invention;

[0028] Figure 5 Provided for the embodiments of this utility model Figure 4 A magnified structural diagram of part A.

[0029] In the diagram: 1-mixing chamber, 2-motor, 3-reducer, 4-rotating shaft, 5-positioning plate, 6-stirring blade, 7-ribbed groove, 8-fastening bolt, 9-upper positioning ring, 10-lower positioning ring, 11-positioning protrusion, 12-first spring, 13-elastic protective membrane, 14-first positioning block, 15-second positioning block, 16-groove, 17-T-shaped hook, 18-second spring, 19-embedding groove. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The diagram shown is a structural schematic of a dual-shaft reverse sludge mixing agitator according to an embodiment of the present invention, comprising:

[0033] Mixed Container 1;

[0034] Rotating shaft 4, the array of rotating shaft 4 is set inside the mixing chamber 1;

[0035] Reducer 3 is located on the left side of mixing chamber 1 and is connected to rotating shaft 4 for transmission.

[0036] Motor 2 is located on the left side of reducer 3 and is connected to reducer 3 in a transmission manner;

[0037] The 7-slotted groove is arranged in a circular array at both ends of the rotating shaft 4;

[0038] Inlay groove 19, the inlay groove 19 is arranged in a circumferential array on the surface of the prism groove 7 and the rotating shaft 4;

[0039] Positioning plate 5 is placed inside the inlay groove 19, and fastening bolts 8 are provided at the middle of both ends to connect with the rotating shaft 4.

[0040] Stirring blades 6, and an array of stirring blades 6 are arranged on the surface of positioning plate 5.

[0041] In this embodiment of the utility model, when in use, the motor 2 is started, and then the reducer 3 drives the rotating shaft 4 in the mixing chamber 1 to rotate, which in turn drives the stirring blades 6 on its surface to rotate and stir, and the motors 2 on both sides rotate in opposite directions, which in turn causes the rotating shafts 4 on both sides to work in opposite directions to mix the sludge.

[0042] By setting an inlay groove 19 on the surface of the rotating shaft 4, it is convenient to place the positioning plate 5 with stirring blades 6 in the inlay groove 19, and then fix the positioning plate 5 with fastening bolts 8, thereby avoiding the troublesome installation and replacement caused by the traditional technology that requires each stirring blade 6 to be installed on the surface of the rotating shaft 4.

[0043] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment of the present invention, an upper positioning ring 9 and a lower positioning ring 10 are symmetrically arranged on the upper and lower surfaces of the groove 7. The right ends of the upper positioning ring 9 and the lower positioning ring 10 are movably hinged. A first spring 12 is arranged in an array on the inner side of the right end of the upper positioning ring 9 and the lower positioning ring 10. A snap-fit ​​structure is symmetrically arranged on the inner side of the left end of the upper positioning ring 9 and the lower positioning ring 10 to protect the fastening bolt 8.

[0044] In this embodiment of the utility model, when in use, the upper positioning ring 10 and the lower positioning ring 9 are snapped onto the surface of the groove 7, thereby making the snap-fit ​​structure on the inner left side of the upper positioning ring 9 and the lower positioning ring 10 movably snap-fit.

[0045] By setting a snap-fit ​​structure on the inner side of the upper positioning ring 10 and the lower positioning ring 9, the angle of the upper positioning ring 10 and the lower positioning ring 9 can be fixed, thereby facilitating the installation and removal of the upper positioning ring 10 and the lower positioning ring 9.

[0046] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment of the present invention, the snap-fit ​​structure includes a first positioning block 14, a second positioning block 15, and a groove 16. The second positioning block 15 is fixedly installed on the inner side of the left end of the upper positioning ring 9, and the first positioning block 14 is fixedly installed on the inner side of the left end of the lower positioning ring 10 and movably abuts against the surface of the second positioning block 15. The groove 16 is opened on the surface of the left end of the lower positioning ring 10. A T-shaped hook 17 is provided inside the groove 16 and the first positioning block 14 and movably snaps against the second positioning block 15. A second spring 18 is provided between the T-shaped hook 17 and the first positioning block 14.

[0047] In this embodiment of the utility model, when in use, pressing the upper positioning ring 9 and the lower positioning ring 10 causes the first positioning block 14 on the inner side of the lower positioning ring 10 to abut against the second positioning block 15 on the inner side of the upper positioning ring 9, thereby causing the T-shaped hook 17 in the first positioning block 14 to overcome the elasticity of the second spring 18 and engage with the inner side of the second positioning block 15.

[0048] By setting a snap-fit ​​structure, the first positioning block 14 and the second positioning block 15 are connected together, thereby making the upper positioning ring 9 and the lower positioning ring 10 form a whole, thus protecting the grooves 7 at both ends of the rotating shaft 4 and the fastening bolts 8 on their surfaces, thereby preventing the fastening bolts 8 from coming into contact with silt and other impurities, which could lead to corrosion and damage to the fastening bolts 8.

[0049] like Figure 2 , Figure 3 and Figure 4 As shown, in a preferred embodiment of the present invention, the inner circumferential array of the upper positioning ring 9 and the lower positioning ring 10 is provided with positioning protrusions 11, and the inner side of the positioning protrusions 11 is in movable contact with the surface of the groove 7.

[0050] In this embodiment of the present invention, when in use, positioning protrusions 11 are arranged in an inner circumferential array on the upper positioning ring 9 and the lower positioning ring 10, and the inner side of the positioning protrusions 11 is in movable contact with the surface of the groove 7, so that the upper positioning ring 9 and the lower positioning ring 10 can rotate with the rotation of the groove 7.

[0051] like Figure 3 , Figure 4 and Figure 5As shown, in a preferred embodiment of the present invention, an elastic protective film 13 is fixedly installed on the outer side of the groove 16, and the top of the T-shaped hook 17 is in movable contact with the inner side of the elastic protective film 13.

[0052] In this embodiment of the utility model, when in use, an elastic protective film 13 is fixedly installed on the outside of the groove 16, thereby protecting the groove 16 and preventing the entry of silt. The top of the T-shaped hook 17 is moved to abut against the inside of the elastic protective film 13, so that the T-shaped hook 17 can be pressed by the elastic protective film 13.

[0053] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment of this utility model, the outer diameter of the upper positioning ring 9 is equal to the diameter of the rotating shaft 4, and the inner diameter of the upper positioning ring 9 is equal to the spacing between the relative grooves 7.

[0054] In this embodiment of the utility model, when in use, by making the outer diameter of the upper positioning ring 9 equal to the diameter of the rotating shaft 4, and the inner diameter of the upper positioning ring 9 equal to the distance between the relative grooves 7, the upper positioning ring 9 and the lower positioning ring 10 can seal and protect the grooves 7.

[0055] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment of the present invention, the width of the upper positioning ring 9 is equal to the width of the groove 7, and a sealing ring is provided between the edge of the upper positioning ring 9 and the groove 7.

[0056] In this embodiment of the utility model, when in use, by making the width of the upper positioning ring 9 equal to the width of the groove 7, and by providing a sealing ring between the edge of the upper positioning ring 9 and the groove 7, the upper positioning ring 9 and the lower positioning ring 10 can protect and seal the groove 7, thus preventing the entry of silt.

[0057] The present invention provides a dual-shaft reverse sludge mixing agitator in the above embodiments. When in use, the positioning plate 5 with stirring blades 6 is placed in the preset inlay groove 19 on the surface of the rotating shaft 4, and then the positioning plate 5 is connected to both ends of the rotating shaft 4 with fastening bolts 8.

[0058] Then, the upper positioning ring 9 and the lower positioning ring 10 are rotated open along their hinge point, so that the upper positioning ring 9 and the lower positioning ring 10 can be fitted onto the grooves 7 at both ends of the rotating shaft 4. Then, the upper positioning ring 9 and the lower positioning ring 10 are pressed, so that the first positioning block 14 on the inner side of the lower positioning ring 10 abuts against the second positioning block 15 on the inner side of the upper positioning ring 9.

[0059] This allows the T-shaped hook 17 inside the first positioning block 14 to overcome the elasticity of the second spring 18 and engage with the inner side of the second positioning block 15, thereby connecting the first positioning block 14 and the second positioning block 15 together. This makes the upper positioning ring 9 and the lower positioning ring 10 form a whole, protecting the grooves 7 at both ends of the rotating shaft 4 and the fastening bolts 8 on their surfaces, thus preventing the fastening bolts 8 from coming into contact with silt and other impurities, which could lead to corrosion and damage to the fastening bolts 8.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-shaft reverse sludge mixing agitator, characterized in that, include; Mixed silo (1); Rotating shafts (4), the array of rotating shafts (4) is arranged inside the mixing chamber (1); The speed reducer (3) is located on the left side of the mixing chamber (1) and is connected to the rotating shaft (4) for transmission. Motor (2), the motor (2) is located on the left side of the reducer (3) and is connected to the reducer (3) in a transmission manner; The ribs (7) are arranged in a circumferential array at both ends of the rotating shaft (4); Inlay groove (19), the inlay groove (19) is circumferentially arrayed on the surface of the ridge groove (7) and the rotating shaft (4); Positioning plate (5), the positioning plate (5) is placed inside the inlay groove (19), and fastening bolts (8) are provided at the middle of both ends, which are connected to the rotating shaft (4); Stirring blades (6) are arranged in an array on the surface of the positioning plate (5).

2. The dual-shaft reverse sludge mixing agitator according to claim 1, characterized in that, The upper positioning ring (9) and the lower positioning ring (10) are symmetrically arranged on the upper and lower surfaces of the groove (7). The right ends of the upper positioning ring (9) and the lower positioning ring (10) are movably hinged. The inner side of the right end of the upper positioning ring (9) and the lower positioning ring (10) is provided with a first spring (12). The inner side of the left end of the upper positioning ring (9) and the lower positioning ring (10) is symmetrically provided with a snap-fit ​​structure to protect the fastening bolt (8).

3. The dual-shaft reverse sludge mixing agitator according to claim 2, characterized in that, The snap-fit ​​structure includes a first positioning block (14), a second positioning block (15), and a groove (16). The second positioning block (15) is fixedly installed on the inner side of the left end of the upper positioning ring (9). The first positioning block (14) is fixedly installed on the inner side of the left end of the lower positioning ring (10) and movably abuts against the surface of the second positioning block (15). The groove (16) is opened on the surface of the left end of the lower positioning ring (10). The groove (16) and the interior of the first positioning block (14) are provided with a T-shaped hook (17), which movably snaps against the second positioning block (15). A second spring (18) is provided between the T-shaped hook (17) and the first positioning block (14).

4. A dual-shaft reverse sludge mixing agitator according to claim 2, characterized in that, The upper positioning ring (9) and the lower positioning ring (10) are provided with positioning protrusions (11) arranged in an inner circumferential array, and the inner side of the positioning protrusions (11) is in movable contact with the surface of the groove (7).

5. A dual-shaft reverse sludge mixing agitator according to claim 3, characterized in that, An elastic protective membrane (13) is fixedly installed on the outside of the groove (16), and the top of the T-shaped hook (17) is in contact with the inside of the elastic protective membrane (13).

6. A dual-shaft reverse sludge mixing agitator according to claim 2, characterized in that, The outer diameter of the upper positioning ring (9) is equal to the diameter of the rotating shaft (4), and the inner diameter of the upper positioning ring (9) is equal to the spacing between the relative grooves (7).

7. A dual-shaft reverse sludge mixing agitator according to claim 2, characterized in that, The width of the upper positioning ring (9) is equal to the width of the groove (7), and a sealing ring is provided between the edge of the upper positioning ring (9) and the groove (7).