Slurry pump impeller blade easy to replace

Abstract

The utility model discloses a slurry pump impeller blade easy to replace, and belongs to the technical field of slurry pumps. The slurry pump impeller blade easy to replace comprises a top cover, a bottom cover, a fixing plate, a transmission shaft and a plurality of blades, one end of the transmission shaft is arranged in the center of the top cover, the other end of the transmission shaft sequentially penetrates through the center of the fixing plate and the center of the bottom cover and extends in the direction away from a containing cavity, and a plurality of inserting grooves are formed in the top cover in an array mode. A blade is arranged in each inserting groove, the blades penetrate through the inserting grooves to be detachably connected with a fixing plate, and the fixing plate is rotationally connected with the transmission shaft; when the fixing plate rotates forwards around the axis of the transmission shaft, the blades and the fixing plate are in a locked state, and when the fixing plate rotates reversely around the axis of the transmission shaft, the blades and the fixing plate are in an unlocked state. In this way, the blades can be flexibly detached from the fixing plate, the damaged blades in the multiple blades can be flexibly replaced conveniently, and the convenience and working efficiency of replacement of the blades of the slurry pump impeller are improved.

Description

Technical Field

[0001] This utility model relates to the field of slurry pump technology, specifically to an easily replaceable slurry pump impeller blade. Background Technology

[0002] Slurry pumps, as key equipment for conveying media containing solid particles in the industrial field, play an indispensable role in industries such as mining, metallurgy, power, and coal. The impeller, as the core component of the slurry pump, has blades that directly contact the slurry. During high-speed operation, it is subjected to the scouring, abrasion, and cavitation effects of solid particles, making it highly susceptible to damage.

[0003] Most existing slurry pump impeller blades are integral structures. When a single blade is damaged, the entire impeller needs to be replaced. This not only wastes resources but also significantly increases maintenance costs and downtime, seriously affecting the company's production efficiency.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided an easily replaceable slurry pump impeller blade in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this invention is to provide an easily replaceable impeller blade for a slurry pump, thereby solving the problem mentioned in the background art that existing slurry pump impeller blades are mostly integral structures, and when a single blade is damaged, the entire impeller needs to be replaced.

[0006] This utility model provides an easily replaceable slurry pump impeller blade, including a top cover, a bottom cover, a fixing plate, a drive shaft, and multiple blades. The top cover and the bottom cover cooperate to form a receiving cavity. The fixing plate is disposed in the receiving cavity. One end of the drive shaft is disposed at the center of the top cover, and the other end of the drive shaft passes through the center of the fixing plate and the center of the bottom cover in sequence, extending in a direction away from the receiving cavity. Multiple slots are arrayed on the top cover, and one blade is disposed in each slot. The blade passes through the slot and is detachably connected to the fixing plate. The fixing plate is rotatably connected to the drive shaft.

[0007] Specifically, when the fixed plate rotates in the forward direction around the axis of the transmission shaft, the blade is locked to the fixed plate; when the fixed plate rotates in the reverse direction around the axis of the transmission shaft, the blade is unlocked to the fixed plate.

[0008] Optionally, the blade includes a blade body and an insert block disposed at the bottom of the blade body. The blade body is disposed in the slot via the insert block. The insert block has a T-shaped limiting groove. The fixing plate is provided with a T-shaped limiting block. The T-shaped limiting block is adapted to the T-shaped limiting groove. When the fixing plate rotates in the positive direction around the axis of the transmission shaft, the T-shaped limiting block is placed in the T-shaped limiting groove.

[0009] Optionally, the insert block is interference-fitted with the slot.

[0010] Optionally, each of the insert blocks is provided with at least two T-shaped limiting grooves, and the opening directions of the two T-shaped limiting grooves are located on the same side of the insert block. The fixing plate is provided with T-shaped limiting blocks corresponding to the T-shaped limiting grooves of each insert block.

[0011] Optionally, the blade body has an arc-shaped structure.

[0012] Optionally, it also includes a worm gear, which is disposed in the accommodating cavity. A worm wheel is disposed at the bottom of the fixed plate. The worm wheel is sleeved on the transmission shaft. The worm wheel is toothed with the first end of the worm gear. The second end of the worm gear extends to the side wall of the bottom cover.

[0013] Optionally, it also includes a support base, one end of which is fixed to the side of the bottom cover facing the worm gear, and the other end of which is rotatably connected to the rod body of the worm gear.

[0014] Optionally, a through hole is provided on the side wall of the bottom cover, and an internal hexagon connector is provided in the through hole. The second end of the worm extends to the through hole and is connected to the internal hexagon connector.

[0015] Optionally, a plug is provided in the through hole.

[0016] Optionally, an annular sealing strip is provided on the circumference of the plug.

[0017] In this embodiment of the invention, the accommodating cavity formed by the cooperation of the top cover and the bottom cover can be used to accommodate internal transmission components. One end of the transmission shaft is fixed to the center of the top cover, and the other end passes through the center of the fixing plate and the center of the bottom cover, extending to the outside of the accommodating cavity, for connecting a power source to drive the entire slurry pump impeller blades to rotate. Multiple blades are arranged in a circumferential array along the top cover, inserted into the accommodating cavity through slots in the top cover, and detachably connected to the fixing plate. The fixing plate is rotatably connected to the transmission shaft, and the fixing plate can rotate around the transmission shaft to facilitate the disassembly and assembly of the blades through the fixing plate. In this way, when it is necessary to replace the blades, by adjusting the relative rotation angle between the fixing plate and the transmission shaft, the blades can be flexibly disassembled from the fixing plate, facilitating the flexible replacement of damaged blades among multiple blades, and improving the convenience and efficiency of slurry pump impeller blade replacement. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an easily replaceable slurry pump impeller blade disclosed in an embodiment of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the easily replaceable slurry pump impeller blades disclosed in an embodiment of the present invention. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the structure of an easily replaceable slurry pump impeller blade disclosed in an embodiment of the present invention. Figure 3 ;

[0022] Figure 4 This is a schematic diagram of the structure of an easily replaceable slurry pump impeller blade disclosed in an embodiment of the present invention. Figure 4 ;

[0023] Figure 5 This is a schematic diagram of the structure of an easily replaceable slurry pump impeller blade disclosed in an embodiment of the present invention. Figure 5 ;

[0024] Figure 6 This is a partial side cross-sectional view of the connection position of the T-shaped limiting block and the T-shaped limiting groove of the easily replaceable slurry pump impeller blade disclosed in an embodiment of the present utility model.

[0025] Figure 7 The easily replaceable slurry pump impeller blades disclosed in this embodiment of the utility model Figure 4 Enlarged diagram of position A.

[0026] In the diagram: 101, top cover; 1011, slot; 102, bottom cover; 1021, through hole; 1022, plug cap; 103, fixing plate; 1031, T-shaped limit block; 1032, worm gear; 104, drive shaft; 105, blade; 1051, blade body; 1052, insert block; 1053, T-shaped limit groove; 106, worm; 107, support base. 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0028] The terms "first," "second," etc., used in the specification and claims of this utility model are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such usage can be interchanged where appropriate so that embodiments of this utility model can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, the first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] like Figures 1 to 7 As shown, this utility model embodiment provides an easily replaceable slurry pump impeller blade, including a top cover 101, a bottom cover 102, a fixing plate 103, a drive shaft 104, and multiple blades 105. The top cover 101 and the bottom cover 102 cooperate to form a receiving cavity. The fixing plate 103 is disposed in the receiving cavity. One end of the drive shaft 104 is disposed at the center of the top cover 101, and the other end of the drive shaft 104 passes through the center of the fixing plate 103 and the center of the bottom cover 102 in sequence, extending in a direction away from the receiving cavity. Multiple slots 1011 are arrayed on the top cover 101. Each slot 1011 is provided with a blade 105, and the blade 105 passes through the slot 1011 and is detachably connected to the fixing plate 103. The fixing plate 103 is rotatably connected to the drive shaft 104.

[0030] Specifically, when the fixed plate 103 rotates in the forward direction around the axis of the transmission shaft 104, the blade 105 and the fixed plate 103 are locked; when the fixed plate 103 rotates in the reverse direction around the axis of the transmission shaft 104, the blade 105 and the fixed plate 103 are unlocked.

[0031] In this embodiment, the accommodating cavity formed by the top cover 101 and the bottom cover 102 can be used to accommodate internal transmission components (such as the fixing plate 103, the transmission shaft 104, etc.); one end of the transmission shaft 104 is fixed to the center of the top cover, and the other end passes through the center of the fixing plate 103 and the center of the bottom cover 102, extending to the outside of the accommodating cavity, for connecting to a power source (such as the rotating shaft of a slurry pump) to drive the entire slurry pump impeller blades to rotate; multiple blades 105 are arranged in a circumferential array along the top cover 101, inserted into the accommodating cavity through the slot 1011 of the top cover 101, and detachably connected to the fixing plate 103; the fixing plate 103 is rotatably connected to the transmission shaft 104, and the fixing plate 103 can rotate around the axis of the transmission shaft 104, so as to facilitate the assembly and disassembly of the blades 105 through the fixing plate 103. In this way, when it is necessary to replace the blades, the blades 105 can be flexibly removed from the fixed plate 103 by adjusting the relative rotation angle between the fixed plate 103 and the drive shaft 104. This facilitates the flexible replacement of damaged blades among multiple blades 105, improving the convenience and efficiency of slurry pump impeller blade replacement.

[0032] Specifically, the drive shaft 104 rotates, causing the top cover 101 and bottom cover 102 to rotate synchronously. The fixed plate 103 can be rotatably connected to the drive shaft 103. In the working state, the blade 105 is unlocked from the fixed plate 103, and the drive shaft 103 drives the fixed plate 103 to rotate synchronously, realizing the normal impeller drive function of the slurry pump. If it is necessary to replace the blade, stop the drive shaft 104 from rotating. By adjusting the relative rotation angle between the fixed plate 103 and the drive shaft 104, the blade 105 can be removed from the fixed plate 103, which facilitates the flexible replacement of damaged blades among multiple blades 105, improving the convenience and working efficiency of slurry pump impeller blade replacement.

[0033] When the fixed plate 103 rotates in the forward direction along the axis of the drive shaft 104 (e.g., clockwise, the specific direction can be defined according to the design), the connection structure between the blade 105 and the fixed plate 103 forms a mechanical lock. For example, a first locking part can be provided at the connection between the blade 105 and the fixed plate 103. When the fixed plate 103 rotates in the forward direction, a second locking part on the fixed plate 103 engages with the first locking part, forming a locked state. This allows the blade 105 to be fixed on the fixed plate 103 and rotate synchronously with the drive shaft 104, thereby enabling the impeller to operate normally.

[0034] Specifically, when the fixed plate 103 rotates in the opposite direction along the axis of the drive shaft 104 (e.g., counterclockwise, the specific direction can be defined according to the design), the mechanical constraint of the connection structure between the blade 105 and the fixed plate 103 is released, and the blade 105 and the fixed plate 103 are in an unlocked state. For example, when the fixed plate 103 rotates in the opposite direction, the second locking part of the fixed plate 103 disengages from the first locking part of the blade 105, allowing the blade 105 to be removed from the fixed plate 103. This facilitates the flexible replacement of damaged blades among multiple blades 105, improving the convenience and efficiency of slurry pump impeller blade replacement.

[0035] Optionally, the blade 105 includes a blade body 1051 and an insert block 1052 disposed at the bottom of the blade body 1051. The blade body 1051 is disposed in the slot 1011 through the insert block 1052. The insert block 1052 is provided with a T-shaped limiting groove 1053. The fixing plate 103 is provided with a T-shaped limiting block 1031. The T-shaped limiting block 1031 is adapted to the T-shaped limiting groove 1053. When the fixing plate 103 rotates in the positive direction around the axis of the transmission shaft 104, the T-shaped limiting block 1031 is placed in the T-shaped limiting groove 1053.

[0036] In this embodiment, when installing the blade 105, the insert 1052 at the bottom of the blade body 1051 is first inserted into the slot 1011 of the top cover 101. At this time, the T-shaped limiting groove 1053 on the insert corresponds to the T-shaped limiting block 1031 on the fixing plate 103. When the fixing plate 103 rotates in the forward direction around the axis of the drive shaft 104, the T-shaped limiting block 1031 slides into the T-shaped limiting groove 1053. Due to the characteristics of the T-shaped structure, this fit can effectively prevent the blade 105 from coming out of the slot under the action of centrifugal force when the impeller is working normally, so that the blade 105 and the fixing plate 103 are locked, and the blade 105 can rotate with the fixing plate 103, thereby realizing the normal operation of the slurry pump impeller. The limiting design of the T-shaped structure can ensure the stable connection between the blade and the fixing plate when the impeller rotates at high speed, effectively avoiding the blade from loosening or falling off, and improving the reliability of the slurry pump operation.

[0037] When a damaged blade needs to be replaced, the fixing plate 103 rotates in the opposite direction around the axis of the drive shaft 104. During the reverse rotation, the T-shaped limiting block 1031 slides out along the T-shaped limiting groove 1053, releasing the lock between the blade and the fixing plate. At this time, the damaged blade can be removed from the slot 1011, completing the blade disassembly. This facilitates the flexible replacement of damaged blades among multiple blades 105, improving the convenience and efficiency of slurry pump impeller blade replacement. The easily replaceable slurry pump impeller blade provided in this embodiment is suitable for various slurry pump applications that require frequent impeller blade replacement; impeller blades with this structure can quickly unlock and remove blades when worn blades need to be replaced, reducing maintenance costs and time, and improving equipment operating efficiency and economy.

[0038] Optionally, the insert 1052 is interference-fitted with the slot 1011.

[0039] In this embodiment, the insert 1052 is interference-fitted with the slot 1011, which further enhances the stability of the blade 105 in the slot 1011. During the operation of the slurry pump, it effectively prevents the blade 105 from shaking or shifting in the slot 1011, improves the reliability of the blade 105 installation, and ensures the working performance of the slurry pump.

[0040] Optionally, at least two T-shaped limiting grooves 1053 are provided on the insert block 1052, and the opening direction of the two T-shaped limiting grooves 1053 is located on the same side of the insert block 1052. The fixing plate 103 is provided with a T-shaped limiting block 1031 corresponding to the T-shaped limiting groove 1053 of each insert block 1052.

[0041] In this embodiment, the insert block 1052 is provided with at least two T-shaped limiting grooves 1053 with opening directions on the same side, and the fixing plate 103 is provided with corresponding T-shaped limiting blocks 1031. The connection stability between the blade 105 and the fixing plate 103 can be enhanced through the multi-point limiting structure. When rotating in the forward direction, multiple T-shaped limiting blocks 1031 are simultaneously embedded into the T-shaped limiting grooves 1053 on the same side, forming a circumferential multi-point locking, which effectively disperses the force on the blade 105 under high-speed rotation or impact load, and avoids loosening or wear caused by single-point force. When rotating in the reverse direction, the T-shaped limiting blocks 1031 are simultaneously disengaged from the T-shaped limiting grooves 1053 in the same direction, ensuring that the unlocking process is uniform and smooth. This not only improves the overall structural strength of the impeller, but also takes into account the convenience of quick disassembly and assembly, which is especially suitable for high-load conditions when slurry pumps transport high-concentration particulate media.

[0042] Optionally, the blade body 1051 has an arc-shaped structure.

[0043] In this embodiment, the blade body 1051 has an arc-shaped structure. The arc-shaped structure matches the fluid dynamics flow field inside the pump, reducing the impact resistance and turbulence effect when the medium flows through the blade, reducing energy loss and improving pumping efficiency. At the same time, the arc-shaped structure can guide the slurry containing solid particles to smoothly transition along the blade surface, avoiding particles from lingering at the blade edge or forming eddy wear points, effectively extending the wear resistance life of the blade. It is especially suitable for conveying media with high concentration and high hardness particles. While improving the working stability of the pump body, it can also achieve efficient maintenance in conjunction with the detachable structure.

[0044] Optionally, it also includes a worm gear 106, which is disposed in the accommodating cavity. A worm wheel 1032 is provided at the bottom of the fixing plate 103. The worm wheel 1032 is sleeved on the transmission shaft 104. The worm wheel 1032 is toothed with the first end of the worm gear 106. The second end of the worm gear 106 extends to the side wall of the bottom cover 102.

[0045] In this embodiment, the worm gear 1032 is fixed to the bottom of the fixing plate 103 and sleeved on the transmission shaft 104. One end of the worm 106 is geared to the worm gear, and the other end extends to the side wall of the bottom cover 102 to form an operating interface (such as a knob or wrench holder). When it is necessary to adjust the rotation of the fixing plate, by rotating the second end of the worm, the worm 106 can drive the worm gear 1032 to rotate the fixing plate 103 around the axis of the transmission shaft 104 in either forward or reverse direction, thereby achieving flexible disassembly and assembly of the blade 105. In this way, unlocking (reverse rotation) or locking (forward rotation) can be completed with a small operating force, improving the convenience and efficiency of slurry pump impeller blade replacement.

[0046] In addition, the worm gear drive has a natural self-locking property. When the fixed plate 103 rotates to the locked position (the blade 105 and the fixed plate 103 are in the locked state), the worm gear is relatively fixed, which prevents the fixed plate 103 from accidentally reversing due to impact vibration during the operation of the slurry pump, thus improving the reliability of the slurry pump impeller.

[0047] Optionally, it also includes a support base 107, one end of which is fixed to the side of the bottom cover 102 facing the worm gear 106, and the other end of which is rotatably connected to the rod body of the worm gear 106.

[0048] In this embodiment, one end of the support base 107 is fixed to the bottom cover 102, and the other end is rotatably connected to the worm gear 106, providing stable support for the worm gear 106 and ensuring its stability during rotation. This prevents the worm gear 106 from deforming or shaking due to uneven force, ensuring the accuracy and reliability of its transmission, and thus guaranteeing the smooth operation of the blade 105 replacement. Rigid support enhances the stability of the power transmission path, ensuring both operational precision during blade replacement and long-term reliable operation of the transmission components during pump operation. This is particularly suitable for industrial pumping environments with high vibration and high load.

[0049] Optionally, a through hole 1021 is provided on the side wall of the bottom cover 102, and an internal hexagon connector is provided in the through hole 1021. The second end of the worm 106 extends to the through hole 1021 and is connected to the internal hexagon connector.

[0050] In this embodiment, an internal hexagonal connector is provided in the through hole 1021 on the side wall of the bottom cover 102, and the second end of the worm gear 106 is connected to it. This allows the operator to use an internal hexagonal tool to rotate the worm gear 106, thereby rotating the fixing plate 103 to install and remove the blade 105. Whether in a confined installation space or a complex industrial environment, suitable tools can be easily found to perform the fixing plate rotation operation when replacing blades, avoiding the trouble of using special or customized tools and improving maintenance efficiency.

[0051] Optionally, a plug 1022 is provided in the through hole 1021.

[0052] In this embodiment, a plug cap 1022 is provided in the through hole 1021 to prevent external impurities from entering the accommodating cavity through the through hole 1021, avoiding wear or damage to the internal transmission components caused by impurities, protecting the internal structure of the slurry pump impeller, and extending the service life of the equipment. This improves the overall sealing performance and reliability of the slurry pump.

[0053] Optionally, an annular sealing strip is provided on the circumference of the cap 1022.

[0054] In this embodiment, the annular sealing strip on the circumference of the plug cap 1022 further enhances the sealing effect, effectively preventing impurities such as liquid or small particles from entering the accommodating cavity through the gap between the plug cap 1022 and the through hole 1021, thereby improving the sealing and protection performance of the equipment and ensuring that the slurry pump can operate stably even in harsh working environments.

[0055] Specifically, the working principle of this easily replaceable slurry pump impeller blade is as follows: The accommodating cavity formed by the top cover 101 and the bottom cover 102 can be used to accommodate internal transmission components (such as the fixing plate 103, the drive shaft 104, etc.); one end of the drive shaft 104 is fixed to the center of the top cover, and the other end passes through the center of the fixing plate 103 and the center of the bottom cover 102, extending to the outside of the accommodating cavity, for connecting to a power source (such as the rotating shaft of the slurry pump) to drive the entire slurry pump impeller blade to rotate; multiple blades 105 are arranged in a circumferential array along the top cover 101, inserted into the accommodating cavity through the slot 1011 of the top cover 101, and detachably connected to the fixing plate 103; the fixing plate 103 is rotatably connected to the drive shaft 104, and the fixing plate 103 can rotate around the axis of the drive shaft 104, so as to facilitate the disassembly and assembly of the blades 105 through the fixing plate 103. In this way, when blade replacement is required, the blade 105 can be flexibly removed from the fixed plate 103 by adjusting the relative rotation angle between the fixed plate 103 and the drive shaft 104. This facilitates the flexible replacement of damaged blades among multiple blades 105, improving the convenience and efficiency of slurry pump impeller blade replacement. Furthermore, the interference fit between the insert block 1052 and the slot 1011 enhances initial installation stability. The insert block 1052 has at least two T-shaped limiting slots 1053, and the fixed plate 103 has corresponding T-shaped limiting blocks 1031. When the worm gear 106 in the receiving cavity rotates, it drives the worm wheel 1032, which is meshed with it, causing the fixed plate 103 to rotate forward around the drive shaft 104. The T-shaped limiting blocks 1031 then engage with the T-shaped limiting slots 1053, locking the blade 105 to the fixed plate 103 and ensuring the stability of the blade during slurry pump operation. The arc-shaped structure of the body 1051 optimizes the conveying efficiency of slurry. The worm gear 106 is stably supported by the support seat 107 fixed on the bottom cover 102. Its second end is connected by an internal hexagonal connector in the through hole 1021 on the side wall of the bottom cover 102, which allows the operator to rotate it with an internal hexagonal tool to realize the reverse rotation of the fixing plate 103 to unlock the blade 105 for easy replacement. Normally, the through hole 1021 is closed by the plug cap 1022 with an annular sealing strip to prevent external impurities from entering the accommodating cavity and ensure the normal operation of the internal transmission components and the stable operation of the slurry pump.

[0056] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this utility model is not limited to performing functions in the discussed order, but may also include performing functions substantially simultaneously or in the reverse order, for example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0057] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. An easily replaceable slurry pump impeller blade, characterized in that, The device includes a top cover (101), a bottom cover (102), a fixing plate (103), a drive shaft (104), and multiple blades (105). The top cover (101) and the bottom cover (102) cooperate to form a receiving cavity. The fixing plate (103) is disposed in the receiving cavity. One end of the drive shaft (104) is disposed at the center of the top cover (101), and the other end of the drive shaft (104) passes through the center of the fixing plate (103) and the center of the bottom cover (102) in sequence, extending in a direction away from the receiving cavity. Multiple slots (1011) are arrayed on the top cover (101). Each slot (1011) is provided with one blade (105), and the blade (105) passes through the slot (1011) and is detachably connected to the fixing plate (103). The fixing plate (103) is rotatably connected to the drive shaft (104). When the fixed plate (103) rotates in the forward direction around the axis of the transmission shaft (104), the blade (105) is locked to the fixed plate (103). When the fixed plate (103) rotates in the reverse direction around the axis of the transmission shaft (104), the blade (105) is unlocked to the fixed plate (103).

2. The easily replaceable slurry pump impeller blade according to claim 1, characterized in that, The blade (105) includes a blade body (1051) and an insert (1052) disposed at the bottom of the blade body (1051). The blade body (1051) is disposed in the slot (1011) through the insert (1052). A T-shaped limiting groove (1053) is provided on the insert (1052). A T-shaped limiting block (1031) is provided on the fixing plate (103). The T-shaped limiting block (1031) is adapted to the T-shaped limiting groove (1053). When the fixing plate (103) rotates in the positive direction around the axis of the transmission shaft (104), the T-shaped limiting block (1031) is placed in the T-shaped limiting groove (1053).

3. The easily replaceable slurry pump impeller blade according to claim 2, characterized in that, The insert (1052) is interference-fitted with the slot (1011).

4. The easily replaceable slurry pump impeller blades according to claim 2, characterized in that, Each of the insert blocks (1052) has at least two T-shaped limiting grooves (1053), and the opening directions of the two T-shaped limiting grooves (1053) are located on the same side of the insert block (1052). The fixing plate (103) is provided with a T-shaped limiting block (1031) corresponding to the T-shaped limiting groove (1053) of each insert block (1052).

5. The easily replaceable slurry pump impeller blade according to claim 2, characterized in that, The blade body (1051) has an arc-shaped structure.

6. The easily replaceable slurry pump impeller blade according to claim 1, characterized in that, It also includes a worm gear (106), which is disposed in the accommodating cavity. A worm wheel (1032) is disposed at the bottom of the fixing plate (103), which is sleeved on the transmission shaft (104). The worm wheel (1032) is toothed with the first end of the worm gear (106), and the second end of the worm gear (106) extends to the side wall of the bottom cover (102).

7. The easily replaceable slurry pump impeller blade according to claim 6, characterized in that, It also includes a support base (107), one end of which is fixed to the side of the bottom cover (102) facing the worm (106), and the other end of which is rotatably connected to the rod body of the worm (106).

8. The easily replaceable slurry pump impeller blades according to claim 6, characterized in that, A through hole (1021) is provided on the side wall of the bottom cover (102), and an internal hexagon connector is provided in the through hole (1021). The second end of the worm (106) extends to the through hole (1021) and is connected to the internal hexagon connector.

9. The easily replaceable slurry pump impeller blade according to claim 8, characterized in that, A plug (1022) is provided in the through hole (1021).

10. The easily replaceable slurry pump impeller blade according to claim 9, characterized in that, An annular sealing strip is provided on the circumference of the plug cap (1022).

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