Energy-saving impeller for pump

Abstract

The utility model relates to the technical field of centrifugal pumps, and discloses an energy-saving pump impeller which comprises a fixing bottom plate and a driving assembly fixedly installed on one side of the upper end of the fixing bottom plate through a fixing block, protection assemblies are fixedly installed on the periphery of the outer wall of the impeller assembly respectively, and after a worker fixes a mounting mechanism, the impeller assembly is fixed through the fixing block. An embedded convex groove in an inner cavity of a convex block penetrates from the tail end of a blade, so that the tail end of the blade is wrapped by the embedded convex groove, meanwhile, the two ends of the inner wall of the embedded convex groove are placed on the two sides of the outer wall of an arc-shaped long block, a screw penetrates through a round screw hole to complete fixed installation of the embedded convex groove, and the tail end of the blade is protected through the arrangement of the embedded convex groove; when the embedded convex groove needs to be replaced, the embedded convex groove can be taken out from the tail end of the blade to be replaced by disassembling the screw in the inner cavity of the round screw hole, and meanwhile, the embedded convex groove and the arc-shaped long block are fixed in a threaded mode, so that installation of the embedded convex groove is completed, and disassembly and fixation of the blade are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pumps, in particular to an energy-saving pump impeller. Background Art

[0002] A centrifugal pump is a pump that transports liquids by the centrifugal force generated by the rotation of the impeller. It is mainly composed of an impeller, a pump body, a pump shaft, bearings, a sealing ring, and a stuffing box. The impeller surface is a two-dimensional manifold, which is an uncountable infinite-dimensional distributed parameter control problem. The geometric shape of the impeller blades is used to control the external work of the impeller or to increase the pressure rise ratio of the fluid. The blades serve as the boundary of the flow channel to control the flow of the fluid in the flow channel to achieve the engineering goal.

[0003] For example, an anti-cavitation impeller for an energy-saving pump with application number CN202122985684.3 includes an auxiliary component, a guard plate and a reinforcement sleeve. A reinforcement sleeve and a guard plate are installed on the outside of the impeller blades, so that the reinforcement sleeve and the guard plate made of reinforced rubber material can effectively replace the cavitation wear of the impeller and the deceleration duct. When necessary, the reinforcement sleeve and the guard plate can be replaced in time, avoiding the problem that it is inconvenient to install auxiliary devices at the impeller to replace wear in the prior art.

[0004] The reinforcement sleeves in the above patents are respectively fixedly connected to the ends of the outer walls of the impeller blades. When the reinforcement sleeves need to be replaced after long-term use, the connection between the reinforcement sleeves and the blades needs to be disassembled. However, long-term disassembly and installation of the reinforcement sleeves at the ends of the outer walls of the blades may easily cause damage to the fixed connection position at the ends of the outer walls of the blades.

[0005] Therefore, we propose an energy-saving pump impeller to solve the above-mentioned problems. Utility Model Content

[0006] The utility model aims to provide an energy-saving pump impeller to solve the problem that the reinforcing sleeve at the end of the blade outer wall is disassembled and installed for a long time in the background technology, which easily leads to damage to the fixed connection position of the end of the blade outer wall.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an energy-saving pump impeller, comprising a fixed base plate and a driving assembly fixedly mounted on one side of the upper end of the fixed base plate through a fixed block, one side of the driving assembly is connected to a pump body, an impeller assembly is arranged in the inner cavity of the pump body, and protective assemblies are fixedly mounted around the outer wall of the impeller assembly to protect the blades of the impeller assembly;

[0008] The protection component comprises a mounting mechanism and a sleeve mechanism which is threadedly fixedly mounted on both sides of the outer wall of the mounting mechanism. The mounting mechanism and the impeller component are fixedly mounted, and the sleeve mechanism and the mounting mechanism are fixedly mounted.

[0009] Preferably, the impeller assembly includes an impeller structure and blades movably arranged around the outer wall of the impeller structure.

[0010] Preferably, the mounting mechanism comprises an arc-shaped long block and a through slot provided in the middle of one end of the arc-shaped long block, and a plurality of elastic elements are provided linearly and evenly spaced on both sides of the inner wall of the through slot.

[0011] Preferably, a fitting block is fixedly mounted on one end of the elastic element, and a rubber pad is embedded in one end of the fitting block.

[0012] Preferably, a circular fixing groove is provided in the middle of the top end of the inner wall of the through groove, an inner screw groove is provided in the middle of the inner cavity of the circular fixing groove, and a long threaded rod is threadedly connected in the inner cavity of the inner screw groove.

[0013] Preferably, the sleeve mechanism comprises a convex block and an embedded convex groove provided in the middle of one end of the convex block, and a plurality of round screw holes are linearly and evenly spaced on both sides of an inner wall of one end of the embedded convex groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. After the installation mechanism is fixed, the worker inserts the embedded convex groove in the inner cavity of the convex block from the end of the blade. At the same time, the two ends of the inner wall of the embedded convex groove are placed on both sides of the outer wall of the arc-shaped long block, and the fixed installation of the embedded convex groove is completed by passing the screws through the round screw hole. The embedded convex groove is used to protect the end of the blade to replace the cavitation wear of the impeller. When replacing the embedded convex groove, the embedded convex groove can be removed from the end of the blade for replacement by removing the screws in the inner cavity of the round screw hole, thereby reducing the disassembly and fixation of the blade.

[0016] 2. When fixing the installation mechanism, the through groove in the middle of the arc-shaped long block is inserted from the end of the blade, so that the fitting blocks on both sides of the inner wall of the through groove automatically clamp the two sides of the outer wall of the blade under the elastic force of the elastic element, and then the long threaded rod is inserted from the middle of the circular fixing groove, and the long threaded rod and the inner thread groove are threadedly connected and penetrated to the top surface of the blade for fixing, so as to complete the setting position of the arc-shaped long block on the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the impeller assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the protection component of the utility model;

[0020] Figure 4 It is a three-dimensional structural diagram of the installation mechanism of the utility model;

[0021] Figure 5 For the utility model Figure 4 Enlarged view of point A.

[0022] In the figure: 1. fixed base plate; 2. driving assembly; 3. pump body; 4. impeller assembly; 41. impeller structure; 42. blades; 5. protection assembly; 51. mounting mechanism; 511. arc-shaped long block; 512. through groove; 513. elastic element; 514. fitting block; 515. rubber pad; 516. round fixing groove; 517. inner screw groove; 518. long threaded rod; 52. sleeve mechanism; 521. convex block; 522. embedded convex groove; 523. round screw hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figure 1-5 An energy-saving pump impeller includes a fixed base plate 1 and a driving assembly 2 fixedly mounted on one side of the upper end of the fixed base plate 1 through a fixing block, a pump body 3 is connected to one side of the driving assembly 2, an impeller assembly 4 is arranged in the inner cavity of the pump body 3, and protective assemblies 5 are fixedly mounted around the outer wall of the impeller assembly 4 to protect the blades 42 of the impeller assembly 4.

[0025] The protection assembly 5 includes a mounting mechanism 51 and a sleeve mechanism 52 threadedly fixedly mounted on both sides of the outer wall of the mounting mechanism 51 . The mounting mechanism 51 and the impeller assembly 4 are fixedly mounted, and the sleeve mechanism 52 and the mounting mechanism 51 are fixedly mounted.

[0026] The impeller assembly 4 includes an impeller structure 41 and blades 42 movably arranged around the outer wall of the impeller structure 41 .

[0027] The sleeve mechanism 52 includes a convex block 521 and an embedded convex groove 522 opened in the middle of one end of the convex block 521. A plurality of circular screw holes 523 are linearly and evenly spaced on both sides of the inner wall of one end of the embedded convex groove 522. The embedded convex groove 522 is sleeved on the end of the outer wall of the blade 42. The inner wall of one end of the embedded convex groove 522 covers the outer wall of the arc-shaped long block 511 on both sides, and screws are passed through the circular screw holes 523 to fix the inner wall of one end of the embedded convex groove 522 on both sides of the outer wall of the arc-shaped long block 511 to complete the fixed installation of the arc-shaped long block 511 and the blade 42.

[0028] In this embodiment: after the worker fixes the installation mechanism 51, the worker inserts the embedded convex groove 522 in the inner cavity of the convex block 521 from the end of the blade 42, so that the embedded convex groove 522 wraps the end of the blade 42, and at the same time, the two ends of the inner wall of the embedded convex groove 522 are placed on both sides of the outer wall of the arc-shaped long block 511, and the embedded convex groove 522 is fixed and installed by screws passing through the round screw hole 523. The setting of the embedded convex groove 522 is used to protect the end of the blade 42 to replace the cavitation wear of the impeller. When the embedded convex groove 522 needs to be replaced, the screw in the inner cavity of the round screw hole 523 can be removed to remove the embedded convex groove 522 from the end of the blade 42 for replacement. At the same time, the embedded convex groove 522 and the arc-shaped long block 511 are threadedly fixed to complete the installation of the embedded convex groove 522, reducing the disassembly and fixation of the blade 42.

[0029] Embodiment 2: This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 4 The mounting mechanism 51 includes an arc-shaped long block 511 and a through groove 512 opened in the middle of one end of the arc-shaped long block 511. A plurality of elastic elements 513 are linearly and evenly spaced on both sides of the inner wall of the through groove 512. The through groove 512 is movably sleeved on one side of the outer wall of the blade 42.

[0030] A fitting block 514 is fixedly mounted on one end of the elastic element 513 , and a rubber pad 515 is embedded in one end of the fitting block 514 . The rubber pad 515 is used to improve the stability of the contact between the fitting block 514 and the outer wall of the blade 42 .

[0031] A circular fixing groove 516 is opened in the middle of the top of the inner wall of the through groove 512, and an inner screw groove 517 is opened in the middle of the inner cavity of the circular fixing groove 516. A long threaded rod 518 is threadedly connected in the inner cavity of the inner screw groove 517. The long threaded rod 518 passes through the inner screw groove 517 and the middle of one side of the top surface of the blade 42 for threaded fixation, thereby fixing the arc-shaped long block 511 on the upper end of the blade 42.

[0032] In this embodiment: when fixing the installation mechanism 51, the through groove 512 in the middle of the arc-shaped long block 511 is inserted from the end of the blade 42, so that the arc-shaped long block 511 is sleeved and installed at one end of the blade 42. When the through groove 512 is installed, the fitting blocks 514 fixedly installed on both sides of the inner wall of the through groove 512 by the elastic element 513 will automatically clamp the two sides of the outer wall of the blade 42 under the elastic force of the elastic element 513, thereby realizing the pre-fixation of the arc-shaped long block 511 and improving the stability of the threaded fixation of the long threaded rod 518. Then, the long threaded rod 518 is inserted from the middle of the circular fixing groove 516, and the long threaded rod 518 and the inner thread groove 517 are threadedly connected and penetrated to the top surface of the blade 42 for fixing, so as to complete the setting position fixation of the arc-shaped long block 511 on the blade 42.

[0033] Working principle: The through groove 512 in the middle of the arc-shaped long block 511 is inserted from the end of the blade 42, so that the arc-shaped long block 511 is sleeved and installed on one end of the blade 42. When the through groove 512 is installed, the fitting block 514 will automatically clamp the two sides of the outer wall of the blade 42 under the elastic force of the elastic element 513, and then the long threaded rod 518 and the inner thread groove 517 are threadedly connected to the top surface of the blade 42 for fixing, so as to complete the setting position of the arc-shaped long block 511 on the blade 42. The worker inserts the embedded convex groove 522 in the inner cavity of the convex block 521 from the end of the blade 42, so that the embedded convex groove 522 wraps the end of the blade 42, and at the same time places the two ends of the inner wall of the embedded convex groove 522 on both sides of the outer wall of the arc-shaped long block 511, and completes the fixed installation of the embedded convex groove 522 by passing the screws through the round screw hole 523. When the embedded convex groove 522 needs to be replaced, the embedded convex groove 522 can be taken out from the end of the blade 42 for replacement by removing the screws in the inner cavity of the round screw hole 523.

[0034] It should be noted that the centrifugal pump and the impeller are equipped with core components that can support the normal operation of the centrifugal pump and the impeller. These core components are not the innovative part of this application document, but also belong to common knowledge. Those skilled in the art are capable of thinking of the specific structure and structural layout.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An energy-saving pump impeller, comprising a fixed base plate (1) and a drive assembly (2) fixedly mounted on one side of an upper end of the fixed base plate (1) via a fixed block, one side of the drive assembly (2) being connected to a pump body (3), an impeller assembly (4) being arranged in an inner cavity of the pump body (3), characterized in that: Protective components (5) are fixedly mounted on the outer wall of the impeller assembly (4) so ​​as to protect the blades (42) of the impeller assembly (4); The protection assembly (5) comprises a mounting mechanism (51) and a sleeve mechanism (52) threadedly fixedly mounted on both sides of the outer wall of the mounting mechanism (51); the mounting mechanism (51) and the impeller assembly (4) are fixedly mounted, and the sleeve mechanism (52) and the mounting mechanism (51) are fixedly mounted.

2. An energy-saving pump impeller according to claim 1, characterized in that: The impeller assembly (4) comprises an impeller structure (41) and blades (42) movably arranged around the outer wall of the impeller structure (41).

3. The energy-saving pump impeller according to claim 1, characterized in that: The mounting mechanism (51) comprises an arc-shaped long block (511) and a through groove (512) provided in the middle of one end of the arc-shaped long block (511), and a plurality of elastic elements (513) are linearly provided at equal intervals on both sides of the inner wall of the through groove (512).

4. An energy-saving pump impeller according to claim 3, characterized in that: A fitting block (514) is fixedly mounted on one end of the elastic element (513), and a rubber pad (515) is embedded in one end of the fitting block (514).

5. The energy-saving pump impeller according to claim 4, characterized in that: A circular fixing groove (516) is provided in the middle of the top end of the inner wall of the through groove (512), an inner screw groove (517) is provided in the middle of the inner cavity of the circular fixing groove (516), and a long threaded rod (518) is threadedly connected in the inner cavity of the inner screw groove (517).

6. The energy-saving pump impeller according to claim 1, characterized in that: The sleeve mechanism (52) comprises a convex block (521) and an embedded convex groove (522) provided in the middle of one end of the convex block (521), and a plurality of round screw holes (523) are linearly provided at equal intervals on both sides of an inner wall of one end of the embedded convex groove (522).

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