A detachable stirring paddle

Abstract

This utility model discloses a detachable stirring paddle, including a stirring shaft and a paddle body. The paddle body includes a mounting base and blades. The mounting base is threaded onto the bottom end of the stirring shaft through an internal threaded hole in the middle, and the end face of the mounting base has multiple positioning holes spaced circumferentially. Multiple blades are included, with one end of each blade inserted into the side wall of the mounting base through connecting posts spaced apart. The side wall of each connecting post has fixing holes. A connecting sleeve is slidably mounted on the stirring shaft, and multiple fixing posts parallel to the stirring shaft are spaced around the connecting sleeve. A locking sleeve is rotatably mounted on the top of the connecting sleeve, and the locking sleeve is threadedly connected to the stirring shaft. When the locking sleeve is screwed down and locked, the multiple fixing posts pass through the multiple positioning holes and connect with the multiple fixing holes respectively. The detachable stirring paddle disclosed in this utility model reduces the possibility of the paddle body loosening due to vibration or reverse torque during operation and reduces maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and in particular to a detachable mixing paddle. Background Technology

[0002] The agitator is the core component of agitation equipment for material mixing and reaction. Currently, the main types of agitators on the market include anchor agitators, paddle agitators, turbine agitators, propeller agitators, and frame agitators, which are widely used in chemical, pharmaceutical, and food processing industries.

[0003] A mixing impeller typically consists of a paddle body with blades and a mixing shaft connected to a power source. Currently used impellers often use an internally threaded connection between the paddle body and the mixing shaft. During operation, the paddle body may loosen due to vibration or reverse torque, affecting the mixing effect. Furthermore, existing impellers are mostly fixedly installed, making individual disassembly and replacement impossible, resulting in high maintenance costs.

[0004] Based on this, the present invention proposes a detachable stirring paddle to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a detachable stirring paddle, which reduces the possibility of the paddle becoming loose due to vibration or reverse torque during operation, and allows for individual replacement of the paddle blades to reduce maintenance costs.

[0006] To solve the above-mentioned technical problems, this utility model provides a detachable stirring paddle, including a stirring shaft and a paddle body; the paddle body includes a mounting base and paddle blades;

[0007] The mounting base is threaded onto the bottom end of the stirring shaft through an internal threaded hole in the middle, and the end face of the mounting base near the top of the stirring shaft is provided with multiple positioning holes at circumferential intervals.

[0008] The blades are multiple, and one end of each blade is inserted into the side wall of the mounting base at circumferential intervals via connecting posts. The side wall of the connecting posts is provided with fixing holes.

[0009] A connecting sleeve is slidably installed on the stirring shaft. Multiple fixing posts parallel to the stirring shaft are installed around the connecting sleeve at circumferential intervals. A locking sleeve is rotatably installed on the top of the connecting sleeve. The locking sleeve is threadedly connected to the stirring shaft. When the locking sleeve is screwed down and locked, the multiple fixing posts pass through the multiple positioning holes and are connected to the multiple fixing holes respectively.

[0010] Furthermore, a connector is provided at the top of the stirring shaft.

[0011] Furthermore, the connector is a flange connector or a clamp connector.

[0012] Furthermore, the end face of the connecting column is designed as a regular polygon.

[0013] Furthermore, the connecting column sidewalls are provided with a plurality of fixing holes.

[0014] Furthermore, the thread specification of the internal threaded hole is: M20×1.5.

[0015] Furthermore, both the end of the fixing post facing the mounting base and the end of the connecting post away from the blade have a chamfered structure.

[0016] Furthermore, a disassembly seat is provided on the outside of the locking sleeve, and the disassembly seat has a regular hexahedral structure.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] (1) The detachable stirring paddle provided by this utility model can limit the mounting seat threaded on the stirring shaft by setting the connecting sleeve, locking sleeve and fixing column, which effectively reduces the possibility of the slurry loosening due to vibration or reverse torque during operation.

[0019] (2) The detachable stirring paddle provided by this utility model is connected to the mounting base by plugging in and fixed by fixing column. When the driving locking sleeve drives the fixing column to separate from the paddle, the paddle can be easily removed from the mounting base, so that the paddle can be disassembled and replaced individually, reducing maintenance costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the detachable stirring paddle in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the detachable stirring paddle when the fixed column and the positioning hole are separated in an embodiment of this utility model;

[0022] Figure 3 This is a front view of the overall structure of the detachable stirring paddle in an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the detachable stirring paddle in an embodiment of the present invention.

[0024] In the diagram: 1. Stirring shaft; 2. Mounting base; 20. Positioning hole; 3. Blade; 30. Connecting column; 31. Fixing hole; 4. Connecting sleeve; 5. Fixing column; 6. Locking sleeve; 60. Disassembly base. Detailed Implementation

[0025] The detachable stirring paddle of this utility model will now be described in more detail with reference to the accompanying drawings, which illustrate preferred embodiments of the utility model. It should be understood that those skilled in the art can modify the utility model described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the utility model.

[0026] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0027] like Figure 1 As shown in the figure, this utility model embodiment proposes a detachable stirring paddle, including a stirring shaft 1 and a paddle body; the paddle body includes a mounting base 2 and a blade 3.

[0028] Specifically, refer to Figure 2 and Figure 3 The mounting base 2 is threaded onto the bottom end of the stirring shaft 1 through an internal threaded hole in the middle part, and the end face of the mounting base 2 near the top end of the stirring shaft 1 is provided with a plurality of positioning holes 20 at circumferential intervals.

[0029] There are multiple blades 3, and one end of each blade 3 is inserted into the side wall of the mounting base 2 at circumferential intervals through a connecting post 30. The side wall of the connecting post 30 is provided with a fixing hole 31.

[0030] A connecting sleeve 4 is slidably installed on the stirring shaft 1. Multiple fixing posts 5 parallel to the stirring shaft 1 are installed around the connecting sleeve 4 at circumferential intervals. A locking sleeve 6 is rotatably installed on the top of the connecting sleeve 4. The locking sleeve 6 is threadedly connected to the stirring shaft 1. When the locking sleeve 6 is screwed down and locked, the multiple fixing posts 5 pass through the multiple positioning holes 20 and are connected to the multiple fixing holes 31 respectively.

[0031] When installing the slurry, first rotate the mounting base 2 to the specified height at the bottom of the stirring shaft 1, and then insert the blades 3 into the side wall of the mounting base 2. The number of blades 3 can be selected according to actual needs. When inserting the blades 3, it is necessary to ensure that the fixing hole 31 and the positioning hole 20 are connected.

[0032] After the blade 3 is inserted, rotate the locking sleeve 6 to bring the connecting sleeve 4 closer to the mounting base 2, thereby causing the fixing column 5 to connect with the positioning hole 20 and the fixing hole 31 in sequence. After the locking sleeve 6 is tightened, the installation of the slurry is completed.

[0033] The fixing post 5 connects with the positioning hole 20, which provides effective restraint for the mounting base 2 and effectively reduces the possibility of the slurry loosening due to vibration or reverse torque during operation. At the same time, the fixing post 5 connects with the fixing hole 31, which can prevent the blade 3 from separating from the mounting base 2.

[0034] When a blade 3 is damaged and needs to be replaced, simply rotate the locking sleeve 6 to separate the fixing post 5 from the fixing hole 31, then pull the blade 3 to remove it, and then replace it with a new blade. There is no need to replace the entire blade, which effectively reduces maintenance costs.

[0035] In the above implementation process, in order to facilitate the rotation of the locking sleeve 6, a disassembly seat 60 with a regular hexahedral structure is provided on the outside of the locking sleeve 6 to enable the locking sleeve 6 to be operated with a tool.

[0036] In the above embodiment, a connector (not shown in the figure) is provided at the top end of the stirring shaft 1 to connect to the power source output shaft. Currently, the following two connection methods are commonly used:

[0037] (1) Expansion sleeve connection: Keyless connection is achieved through radial expansion. It has the advantages of high precision, easy installation and disassembly, but the cost is high and it is suitable for shaft connections.

[0038] (2) Flange connection: The flange is fixed by bolts, which has good sealing performance and is suitable for high-pressure environments, but the installation is complicated and the alignment accuracy is low. For example, the stop-type expansion flange combined with the tapered hole and inner ring design reduces the processing cost and simplifies disassembly and assembly.

[0039] Therefore, in this example, the connector is either a clamp connector or a flange connector.

[0040] In a preferred embodiment, in conjunction with reference to Figure 4 The end face of the connecting post 30 is designed as a regular polygon, such as a regular square, a regular hexagon, or a regular octagon, to facilitate the alignment between the positioning hole 20 and the fixing hole 31.

[0041] Furthermore, the connecting column 30 has multiple fixing holes 31 at intervals on its sidewalls. By selecting different fixing holes 31 on the sidewalls and aligning them with the positioning holes 20, multiple installation angles of the blade 3 can be selected.

[0042] In an optional embodiment, the thread specification of the internal threaded hole is M20×1.5.

[0043] The M20×1.5 specification thread is a metric fine thread (the pitch of a standard coarse thread M20 is 2.5mm, while a pitch of 1.5mm falls into the fine thread category), and it features reliable installation and excellent fatigue resistance.

[0044] In another optional embodiment, the end of the fixing post 5 facing the mounting base 2 and the end of the connecting post 30 away from the blade 3 both have a chamfered structure to facilitate the connection of the fixing post 5 with the fixing hole 31 and the positioning hole 20 and to facilitate the insertion and installation of the blade 3.

[0045] In summary, compared with the prior art, this utility model has at least the following advantages:

[0046] (1) The detachable stirring paddle provided by this utility model can limit the mounting seat threaded on the stirring shaft by setting the connecting sleeve, locking sleeve and fixing column, which effectively reduces the possibility of the slurry loosening due to vibration or reverse torque during operation.

[0047] (2) The detachable stirring paddle provided by this utility model is connected to the mounting base by plugging in and fixed by fixing column. When the driving locking sleeve drives the fixing column to separate from the paddle, the paddle can be easily removed from the mounting base, so that the paddle can be disassembled and replaced individually, reducing maintenance costs.

[0048] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A detachable stirring paddle, characterized in that, It includes a stirring shaft (1) and a slurry; the slurry includes a mounting base (2) and blades (3); The mounting base (2) is threaded onto the bottom end of the stirring shaft (1) through an internal threaded hole in the middle part, and the end face of the mounting base (2) near the top end of the stirring shaft (1) is provided with multiple positioning holes (20) at circumferential intervals; There are multiple blades (3), and one end of each blade (3) is inserted into the side wall of the mounting base (2) at a circumferential interval through a connecting post (30). The side wall of the connecting post (30) is provided with a fixing hole (31). A connecting sleeve (4) is slidably installed on the stirring shaft (1). Multiple fixing posts (5) parallel to the stirring shaft (1) are installed around the connecting sleeve (4) at circumferential intervals. A locking sleeve (6) is rotatably installed on the top of the connecting sleeve (4). The locking sleeve (6) is threadedly connected to the stirring shaft (1). When the locking sleeve (6) is screwed down and locked, the multiple fixing posts (5) pass through the multiple positioning holes (20) and connect with the multiple fixing holes (31) respectively.

2. The detachable stirring paddle as described in claim 1, characterized in that, The top end of the stirring shaft (1) is provided with a connector (10).

3. The detachable stirring paddle as described in claim 2, characterized in that, The connector (10) is a flange connector or a clamp connector.

4. The detachable stirring paddle as described in claim 1, characterized in that, The end face of the connecting column (30) is designed as a regular polygon.

5. The detachable stirring paddle as described in claim 4, characterized in that, The connecting column (30) has multiple fixing holes (31) spaced apart on its side wall.

6. The detachable stirring paddle as described in claim 1, characterized in that, The thread specification of the internal threaded hole is M20×1.

5.

7. The detachable stirring paddle as described in claim 1, characterized in that, The end of the fixed column (5) facing the mounting base (2) and the end of the connecting column (30) away from the blade (3) both have a chamfered structure.

8. The detachable stirring paddle as described in claim 1, characterized in that, The locking sleeve (6) is provided with a disassembly seat (60), which has a regular hexahedral structure.

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