A detachable impeller fixing mechanism for cooling tower water pump

Abstract

The utility model relates to water pump impeller technical field discloses a cooling tower water pump detachable impeller fixing mechanism, include: base, through bolt fixed in the required installation place, protective cover, through bolt fixed in the base top, and the protective cover is provided with motor in, bottom shell, fixed in the protective cover top. Filter screen blocks impurities and makes internal component continuous stable operation time extension, guarantees equipment continuous reliable work, the independent bolt fixing of vane, single group damage does not need integral replacement, reduces component replacement cost, and the fixing device of button and spring composition makes impeller post dismounting not needing tool, shortens maintenance time and reduces artificial cost.

Description

Technical Field

[0001] This utility model relates to the field of water pump impeller technology, specifically a detachable impeller fixing mechanism for a cooling tower water pump. Background Technology

[0002] As the core component of the cooling system, the cooling tower water pump uses its impeller to drive water circulation through rotation, thereby achieving heat exchange.

[0003] A search revealed existing technology (application number: CN202222967676.0), which describes "a detachable fan impeller." This utility model includes an installation ring with a groove on its outer surface. A blade is disposed within the groove, and an installation slot is formed within the blade. A snap-fit ​​structure is provided within the installation slot, snapping onto a threaded sleeve. A guide rod is fixed within the groove, and a limiting structure is provided on the guide rod. A U-shaped groove is formed on the blade, snapping onto a threaded rod with two sets of threads in opposite directions. The advantages are: the snap-fit ​​structure on the blade connects the blade to the threaded sleeve, preventing the blade from falling out of the groove if the threaded sleeve loosens; the limiting structure on the guide rod compresses the snap-fit ​​structure inward by pushing it, moving it away from the threaded sleeve and facilitating blade removal; and the limiting structure restricts the position of the threaded sleeve.

[0004] However, while existing technologies have improved overall convenience, they still have some shortcomings, such as the inability to replace individual blades. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a detachable impeller fixing mechanism for cooling tower water pumps.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a detachable impeller fixing mechanism for a cooling tower water pump, comprising: a base, which is fixed to the desired installation location by bolts; a protective cover, which is fixed to the top of the base by bolts, and a motor is installed inside the protective cover; and a bottom outer shell, which is fixed to the top of the protective cover.

[0007] As a further description of the above technical solution:

[0008] A top shell is provided above the bottom shell. The top shell is fixed to the bottom shell by several sets of bolts on the circumference of the bottom shell. Four sets of slots are evenly opened on the circumference side of the top shell. The slots are arranged in a cross shape and are filled with filter screens.

[0009] As a further description of the above technical solution:

[0010] A cylindrical shaft is fixed inside the bottom of the bottom housing. The top of the cylindrical shaft passes through the top housing, and the bottom of the cylindrical shaft passes through the top of the protective cover and is connected to the motor inside the protective cover. An impeller column is also fitted on the cylindrical shaft.

[0011] As a further description of the above technical solution:

[0012] The impeller column is located inside the top casing, and several sets of blades are evenly distributed along the circumference of the impeller column. The blades are placed at an angle, with one end placed in a slot opened on the circumferential side of the impeller column.

[0013] As a further description of the above technical solution:

[0014] The top of the impeller column has several sets of threaded holes, the number of which corresponds to the number of blades. Bolts can be used to fix one end of the blade to the impeller column through the threaded holes.

[0015] As a further description of the above technical solution:

[0016] A sleeve is rotatably connected to the bottom of the impeller column. The sleeve is fitted through the outside of the cylindrical shaft and is equipped with a fixing device.

[0017] As a further description of the above technical solution:

[0018] The fixing device includes: two sets of buttons, which are respectively set on both sides of the sleeve, with one end of the button slidingly connected to the grooves on both sides of the sleeve and the other end sliding through the cylindrical grooves opened on both sides of the bottom of the bottom shell; and two sets of springs, which are respectively located in the two sets of buttons, with one end of the spring fixed to the inner wall of the groove of the sleeve and the other end fixed to one end of the inner wall of the button.

[0019] This utility model has the following beneficial effects:

[0020] 1. The blades reduce energy consumption when propelling water flow, the filter screen blocks impurities, extending the continuous and stable operation time of internal components, and the motor drives the cylindrical shaft to drive the impeller column to rotate synchronously, achieving efficient water flow delivery and ensuring continuous and reliable operation of the equipment.

[0021] 2. The blades are individually bolted, so there is no need to replace the whole set if a single set is damaged, reducing the cost of component replacement; the fixing device consisting of a button and a spring allows the impeller column to be disassembled and assembled without tools, shortening maintenance time and reducing labor costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall appearance of a detachable impeller fixing mechanism for a cooling tower water pump proposed in this utility model.

[0023] Figure 2 An exploded view of a detachable impeller fixing mechanism for a cooling tower water pump proposed in this utility model;

[0024] Figure 3 This is a cross-sectional view of the button proposed in this utility model.

[0025] Legend:

[0026] 1. Base; 2. Protective cover; 3. Bottom shell; 31. Cylindrical shaft; 4. Top shell; 5. Impeller column; 51. Blade; 50. Sleeve; 500. Button; 501. Spring. Detailed Implementation

[0027] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Example 1:

[0031] like Figures 1 to 3 As shown in the figure, the detachable impeller fixing mechanism for a cooling tower water pump provided in this embodiment includes: a base 1, which is fixed to the required installation location by bolts; a protective cover 2, which is fixed to the top of the base 1 by bolts, and a motor is installed inside the protective cover 2; and a bottom outer shell 3, which is fixed to the top of the protective cover 2.

[0032] In this embodiment, the button constitutes a detachable impeller fixing mechanism for a cooling tower water pump according to this application.

[0033] It should also be noted that the detachable impeller fixing mechanism for a cooling tower water pump in this application can be a keyed connection fixing type, a threaded connection fixing type, an expansion sleeve connection fixing type, etc. Figure 1 In this embodiment, a detachable impeller fixing mechanism for a cooling tower water pump is used as an example of a keyed connection fixing type. Of course, other types of detachable impeller fixing mechanisms for cooling tower water pumps can also adopt similar structures, which will not be described in detail below.

[0034] Understandable Figure 1 This illustration only schematically shows some components of a detachable impeller fixing mechanism for a cooling tower water pump. The actual shape, size, position, and construction of these components are not subject to change. Figure 1 Due to limitations, a detachable impeller fixing mechanism for a cooling tower water pump can also include, compared to... Figure 1 More or fewer parts.

[0035] In this embodiment, the base 1 is a circular metal plate structure made of Q235 steel; the protective cover 2 is a cylindrical shell housing the motor; and the bottom outer shell 3 is a hollow structure made of the same material as the protective cover 2. The base 1 is fixed to the mounting surface with several sets of bolts, and the protective cover 2 is fixed to the top of the base 1 with several sets of bolts, providing protection for the internal motor. The bottom outer shell 3 is welded to the top of the protective cover 2, providing a mounting base for the internal components. This ensures stable assembly of all basic components and protects the motor from external environmental influences.

[0036] Specifically, a top outer shell 4 is provided above the bottom outer shell 3. The top outer shell 4 is fixed to the bottom outer shell 3 by several sets of bolts on the bottom circumference. Four sets of slots are evenly opened on the circumferential side of the top outer shell 4. The slots are distributed in a cross shape and are filled with filter screens.

[0037] In this embodiment, the top outer shell 4 is a cylindrical shell made of stainless steel, with several sets of bolt holes evenly distributed around its bottom circumference; the slots are rectangular, and the filter screen is made of stainless steel wire mesh. The top outer shell 4 is fixed to the bottom outer shell 3 by bottom bolts, and the side slots are used for water flow in and out, with the filter screen covering the slots. This allows for a detachable connection of the outer shells, and the filter screen prevents impurities from entering, protecting the internal impeller components.

[0038] Specifically, a cylindrical shaft 31 is fixed on the bottom of the bottom housing 3. The top of the cylindrical shaft 31 penetrates the top housing 4, and the bottom of the cylindrical shaft 31 is connected to the motor inside the protective cover 2 through the top of the protective cover 2. An impeller column 5 is also fitted on the cylindrical shaft 31.

[0039] In a preferred embodiment, the cylindrical shaft 31 is a solid metal shaft made of 45# steel; the impeller column 5 is a cylindrical hollow structure with an inner diameter that matches the diameter of the cylindrical shaft 31. The bottom of the cylindrical shaft 31 is welded and fixed to the bottom of the bottom housing 3, and the top penetrates the top housing 4. The bottom is connected to the motor output shaft inside the protective cover 2 via a coupling, and the impeller column 5 is sleeved on the outside of the cylindrical shaft 31. The motor drives the cylindrical shaft 31 to rotate, which in turn drives the impeller column 5 to rotate synchronously, providing power for water flow.

[0040] Example 2:

[0041] Based on Embodiment 1, in order to make it possible to pick up a single blade 51, several sets of threaded holes are opened on the top of the impeller column 5;

[0042] Specifically, the impeller column 5 is located inside the top outer shell 4, and several sets of blades 51 are evenly distributed along the circumference of the impeller column 5. The blades 51 are placed at an angle, with one end placed in a placement groove opened on the circumferential side of the impeller column 5.

[0043] In this embodiment, there are several groups of blades 51, each group of blades 51 being an arc-shaped metal plate made of aluminum alloy; the placement groove is an arc-shaped recess adapted to the shape of one end of the blade 51. One end of the blade 51 is embedded in the placement groove on the side of the impeller column 5, and is evenly distributed along the circumference of the impeller column 5. When the impeller column 5 rotates, the blades 51 push the water flow, realizing the water transport, and the inclined design improves the water transport efficiency.

[0044] Specifically, the top of the impeller column 5 has several sets of threaded holes, the number of which corresponds to the number of blades 51. Bolts can be used to fix one end of the blade 51 to the impeller column 5 through the threaded holes.

[0045] With this configuration, each set of blades 51 corresponds to a set of threaded holes. Bolts pass through the threaded holes at the top of the impeller column 5, with the top end abutting against one end of the high part of the blade 51. This securely fixes the blades 51 to the impeller column 5, preventing them from loosening or falling off during rotation, while also facilitating the disassembly and replacement of individual blades 51.

[0046] Example 3:

[0047] Based on Example 2, in order to strengthen the fixation of the impeller column 5, a fixing device is provided on the sleeve 50;

[0048] Specifically, a sleeve 50 is rotatably connected to the bottom of the impeller column 5. The sleeve 50 is sleeved through the outside of the cylindrical shaft 31, and a fixing device is provided on the sleeve 50.

[0049] The sleeve 50 is a cylindrical hollow structure with an inner diameter that matches the maximum outer diameter of the cylindrical shaft 31, and is made of stainless steel. The fixing device consists of two sets of symmetrically arranged elastic snap-fit ​​structures. The sleeve 50 is rotatably connected to the bottom of the impeller column 5 and is sleeved on the outside of the cylindrical shaft 31. The fixing device is installed on both sides of the sleeve 50 and cooperates with the bottom outer shell 3 to achieve positioning. It provides support for the bottom of the impeller column 5 and restricts the axial and radial displacement of the impeller column 5 through the fixing device, ensuring the stable rotation of the impeller column 5.

[0050] Specifically, the fixing device includes: two sets of buttons 500, which are respectively disposed on both sides of the sleeve 50, with one end of the button 500 slidably connected to the grooves on both sides of the sleeve 50, and the other end of the button 500 sliding through the cylindrical grooves opened on both sides of the bottom of the bottom outer shell 3; and two sets of springs 501, which are respectively located in the two sets of buttons 500, with one end of the spring 501 fixed to the inner wall of the groove of the sleeve 50, and the other end fixed to one end of the inner wall of the button 500.

[0051] In this embodiment, the button 500 is a cylindrical plastic part; the spring 501 is a cylindrical helical spring made of spring steel; the grooves on both sides of the sleeve 50 are cylindrical, with diameters adapted to the button 500; the diameters of the cylindrical grooves on both sides of the bottom of the bottom housing 3 are adapted to the button 500. One end of the button 500 is inserted into the groove of the sleeve 50, and the other end extends out and is inserted into the cylindrical groove of the bottom housing 3. The two ends of the spring 501 are respectively fixed to the inner wall of the groove of the sleeve 50 and the inner wall of the button 500. In its natural state, the spring 501 pushes the outer end of the button 500 into the cylindrical groove; when the button 500 is pressed, the spring 501 is compressed, and the outer end of the button 500 is disengaged from the cylindrical groove, releasing the fixation. This achieves quick fixation and disassembly of the impeller column 5 and the bottom housing 3, which is simple to operate, requires no additional tools, and improves maintenance efficiency.

[0052] In actual use, the user inserts the blade 51 into the placement groove on the circumference of the sleeve 50, and then fixes it to the impeller column 5 with bolts. The impeller column 5 is then fitted onto the outside of the cylindrical shaft 31. The shape of the cylindrical shaft 31 matches the shape of the through groove in the middle of the impeller column 5, which can fix the impeller column 5 axially. The buttons 500 on both sides of the sleeve 50 automatically snap into the cylindrical grooves on both sides of the bottom of the bottom housing 3, which can fix the impeller column 5 radially. Then, the top housing 4 is fixed to the top of the bottom housing 3 with bolts. The motor inside the protective cover 2 is turned on. The motor drives the cylindrical shaft 31 to rotate, and the impeller column 5 rotates, which means the blade 51 rotates, thus generating water flow. The filter screen on the top housing 4 can filter external impurities to ensure the normal operation of the internal blade 51. Furthermore, by snapping the blade 51 into the placement groove on the impeller column 5 and fixing it with bolts, damaged blades 51 can be selectively removed and replaced. When it is necessary to remove the impeller column 5, press the buttons 500 on both sides of the sleeve 50. The spring 501 will be compressed and the buttons 500 will retract into the bottom housing 3, thus releasing the impeller column 5 from the bottom housing 3 for cleaning and replacement. The button 500 is designed to be convenient and simple to operate, saving time.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 detachable impeller fixing mechanism for a cooling tower water pump, characterized in that: include: The base (1) is fixed to the desired installation location by bolts; The protective cover (2) is fixed to the top of the base (1) by bolts, and a motor is installed inside the protective cover (2); The bottom outer shell (3) is fixed to the top of the protective cover (2).

2. The detachable impeller fixing mechanism for a cooling tower water pump according to claim 1, characterized in that: A top shell (4) is provided above the bottom shell (3). The top shell (4) is fixed to the bottom shell (3) by several sets of bolts on the bottom circumference. Four sets of slots are evenly opened on the circumferential side of the top shell (4). The slots are arranged in a cross shape and are filled with filter screens.

3. The detachable impeller fixing mechanism for a cooling tower water pump according to claim 2, characterized in that: A cylindrical shaft (31) is fixed on the bottom of the bottom housing (3). The top of the cylindrical shaft (31) passes through the top housing (4), and the bottom of the cylindrical shaft (31) passes through the top of the protective cover (2) and is connected to the motor inside the protective cover (2). An impeller column (5) is also fitted on the cylindrical shaft (31).

4. The detachable impeller fixing mechanism for a cooling tower water pump according to claim 3, characterized in that: The impeller column (5) is located inside the top outer shell (4), and several sets of blades (51) are evenly distributed along the circumference of the impeller column (5). The blades (51) are placed at an angle, with one end placed in the placement groove opened on the circumferential side of the impeller column (5).

5. The detachable impeller fixing mechanism for a cooling tower water pump according to claim 4, characterized in that: The top of the impeller column (5) has several sets of threaded holes, the number of which corresponds to the number of blades (51). Bolts can be used to fix one end of the blade (51) to the impeller column (5) through the threaded holes.

6. The detachable impeller fixing mechanism for a cooling tower water pump according to claim 5, characterized in that: A sleeve (50) is rotatably connected to the bottom of the impeller column (5). The sleeve (50) is sleeved through the outside of the cylindrical shaft (31), and a fixing device is provided on the sleeve (50).

7. A detachable impeller fixing mechanism for a cooling tower water pump according to claim 6, characterized in that: The fixing device includes: buttons (500), two sets in total, respectively set on both sides of the sleeve (50), and one end of the button (500) is slidably connected to the grooves on both sides of the sleeve (50), and the other end slides through the cylindrical grooves opened on both sides of the bottom of the bottom shell (3). There are two sets of springs (501), which are located in the two sets of buttons (500) respectively. One end of the spring (501) is fixed on the inner wall of the groove of the sleeve (50), and the other end is fixed on one end of the inner wall of the button (500).

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