Impeller assembly of impeller pump

Abstract

The utility model discloses an impeller assembly of an impeller pump, and belongs to the field of impeller pumps, the impeller assembly comprises a pump shaft and an impeller body arranged on the side wall of the pump shaft in a sleeving mode, the impeller body is formed by splicing a plurality of bottom plates, the cross section of each bottom plate is in a fan shape, and blades distributed in an arc-shaped array are fixedly installed at the top ends of the bottom plates; screwing assemblies are arranged between the multiple bottom plates, the outer side of the impeller body is sleeved with a fixing lantern ring, and arc-shaped grooves matched with the fixing lantern ring are formed in the outer sides of the bottom plates. According to the impeller body, the bottom plate and the blades are in threaded connection with the splicing assembly through the threaded connection assembly, when one blade is damaged, the threaded connection assembly is removed, the damaged blade can be replaced, the impeller body does not need to be replaced, and material waste is reduced.

Description

Technical Field

[0001] The present application relates to the field of impeller pumps, and more particularly to an impeller assembly of an impeller pump. Background Art

[0002] The impeller pump drives the liquid to rotate at high speed through the working impeller, transferring mechanical energy to the liquid, thereby achieving the purpose of conveying the liquid.

[0003] The patent with application number 202020045574.1 discloses an impeller assembly of a guided sewage pump, which has a cutting function and adopts a closed and open combination structure as a whole, which has the advantages of anti-leakage and high efficiency. The key points of its technical solution are that it includes an impeller, including an upper cover plate, a lower cover plate and a plurality of main blades connected between the upper cover plate and the lower cover plate, a shaft sleeve is provided in the center of the upper cover plate, an impeller mouth ring is provided in the center of the lower cover plate, the main blade includes an inner end and an outer end, and a cutting knife is provided on the inner end of the main blade. The impeller in this application adopts a combination of closed and open impellers, taking advantage of each other's strengths to make up for each other's weaknesses, so that it can achieve the advantages of anti-leakage of an open impeller and the advantages of high efficiency of a closed impeller. A cutting knife is provided in the impeller so that it can cut and disconnect the dirt.

[0004] With respect to the above-mentioned related technologies, the impeller is arranged in an integrated manner. When part of the main blades or the lower blades are damaged, the impeller needs to be replaced as a whole, resulting in a waste of some materials. Utility Model Content

[0005] In order to solve the above problems, the present application provides an impeller assembly of an impeller pump, which adopts the following technical solution:

[0006] An impeller assembly of an impeller pump comprises a pump shaft and an impeller body sleeved on the side wall of the pump shaft, wherein the impeller body is formed by splicing a plurality of base plates, the cross-sections of the base plates are all fan-shaped, blades distributed in an arc-shaped array are fixedly mounted on the top of the base plates, screw-fitting assemblies are arranged between the plurality of base plates, a fixing ring is sleeved on the outer side of the impeller body, and an arc-shaped groove matching the fixing ring is opened on the outer side of the base plates.

[0007] By adopting the above technical solution, when the equipment is used, the staff will assemble multiple base plates in sequence to form an impeller body, and then assemble the multiple base plates together through a screw assembly. Then, the staff will place a fixing ring on the side wall of the impeller body to engage the fixing ring with the arc groove opened on the outer side of the base plate, which can further tighten the multiple base plates and help improve the stability of the base plate fit. When the impeller body is assembled, it can be mounted on the pump shaft for use. When a blade is damaged, the fixing of the base plate by the screw assembly can be released, and then the damaged blade can be replaced without replacing the impeller body as a whole, which is beneficial to reduce material waste.

[0008] Furthermore, the screw-in assembly includes a fixed tube fixedly installed on both sides of the impeller body, the fixed tube is composed of a plurality of arc-shaped sheet splicing assemblies, two arc-shaped sheets in the same group are fixedly installed on both sides of the base plate, the side walls of the fixed tube are sleeved with screw tubes, and the side walls of the fixed tubes are provided with threaded teeth matching the screw tubes in the same group, and the screw tubes are provided with two symmetrically distributed grooves on the side away from the impeller body.

[0009] By adopting the above technical solution, the staff will splice multiple base plates together, and then make the same group of arc-shaped pieces form a fixed tube. Subsequently, the screw tube is screwed into the threaded teeth opened on the side wall of the fixed tube to fasten and splice multiple arc-shaped pieces, thereby fixing multiple base plates. The groove is set on the top of the screw tube, which makes it convenient for the staff to rotate the screw tube with the assistance of existing equipment.

[0010] Furthermore, a resistance tube is fixedly installed on the inner walls of the two spiral tubes, and the outer side of the resistance tube is in contact with the inner wall of the fixed tube in the same group. Two symmetrically distributed positioning blocks are provided between the pump shaft and the two resistance tubes. A positioning groove matching the positioning block is provided on the side of the outer side of the pump shaft opposite to the inner side of the resistance tube.

[0011] By adopting the above technical scheme, a resistance tube is arranged inside the spiral tube. When the spiral tube is screwed together with the fixed tube of the same group, the resistance tube is located inside the fixed tube, and the outer wall of the resistance tube fits with the inner wall of the fixed tube, which can play a role of resisting and supporting the fixed tube, and facilitate the stable screwing of the spiral tube and the fixed tube. When the impeller body is assembled, the staff will sleeve the impeller body on the pump shaft to align the positioning groove opened on the outside of the resistance tube with the positioning groove opened on the side wall of the pump shaft, and then place the positioning block in the two positioning grooves of the same group, which can play a role of positioning and fixing the impeller body, and facilitate the subsequent use of the equipment.

[0012] Furthermore, a limiting ring is sleeved on the side wall of the pump shaft, and an annular groove matching the limiting ring is opened on the side wall of the pump shaft.

[0013] By adopting the above technical solution, after the impeller body is installed, the staff will set the limiting ring on the side wall of the pump shaft and engage it with the annular groove opened on the side wall of the pump shaft, which can further limit the impeller body and help maintain the stability of the impeller body installation.

[0014] Furthermore, two symmetrically distributed first plug blocks are fixedly installed on one side of the base plate, and a second plug block is fixedly installed on the other side of the base plate. A first slot matching the first plug block is opened on the side of the base plate close to the second plug block, and a second slot matching the second plug block is opened on the side of the base plate close to the first plug block.

[0015] By adopting the above technical solution, when two base plates are spliced, the first plug-in block and the second plug-in block installed on the side wall of one of the base plates are respectively engaged with the first slot and the second slot opened on the side walls of the other two base plates, and the first plug-in block and the second plug-in block installed on the side walls of the other two base plates are engaged with the first slot and the second slot opened on the side walls of the connected base plates, thereby assembling the base plates to form the impeller body, which is beneficial to maintaining the stability of the base plate splicing.

[0016] Furthermore, two symmetrically distributed reinforcing rods are fixedly installed between two adjacent blades.

[0017] By adopting the above technical solution, the reinforcement rod is arranged between two adjacent blades, which is beneficial to increasing the bearing capacity of the blades and reducing the degree of damage caused by the blades during operation.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] (1) In the present application, the impeller body is screwed together with the base plate and the blades through a screw assembly. When one of the blades is damaged, the screw assembly can be released to replace the damaged blade without replacing the impeller body, thereby reducing material waste.

[0020] (2) In the present application, the side wall of the bottom plate is provided by a first plug-in block, a second plug-in block, a first slot and a second slot. The first plug-in block is engaged with the first slot, and the second plug-in block is engaged with the second slot, which is beneficial to improving the stability of the bonding of the two bottom plates.

[0021] (3) In the present application, after a plurality of bottom plates are bonded together to form an impeller body, a fixing ring is sleeved on the side wall of the impeller body so that the fixing ring engages with the arc groove provided on the side wall of the bottom plate, thereby fixing and fastening the plurality of bottom plates, which is beneficial to maintaining the stability of the impeller body. The fixing ring is made of rubber material, which is convenient for the staff to sleeve on. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an impeller assembly of an impeller pump;

[0023] Figure 2 For this application Figure 1 A magnified view of middle;

[0024] Figure 3 A bottom view of the present application;

[0025] Figure 4 An exploded view of the fixed components in this application;

[0026] Figure 5 An exploded view of this application;

[0027] Figure 6 It is a cross-sectional view of the spiral tube and the retaining tube in this application.

[0028] Description of the numbers in the figure:

[0029] 1. Pump shaft; 2. Impeller body; 21. Bottom plate; 211. Fixed pipe; 212. First plug block; 213. Second plug block; 214. First slot; 215. Second slot; 22. Blade; 3. Reinforcement rod; 4. Fixed collar; 5. Screw tube; 6. Limiting ring; 7. Positioning block; 8. Positioning groove; 9. Backing pipe; 10. Arc groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0031] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] The following is combined with Figure 1-6 This application is described in further detail.

[0034] See also Figure 1-6An impeller assembly of an impeller pump includes a pump shaft 1 and an impeller body 2 sleeved on the side wall of the pump shaft 1. The impeller body 2 is spliced ​​by a plurality of bottom plates 21. The cross-sections of the bottom plates 21 are all fan-shaped. The tops of the bottom plates 21 are fixedly installed with blades 22 distributed in an arc array. Two symmetrically distributed first plug blocks 212 are fixedly installed on one side of the bottom plate 21. A second plug block 213 is fixedly installed on the other side of the bottom plate 21. A first slot 214 matching the first plug block 212 is opened on the side of the bottom plate 21 close to the second plug block 213. A second slot 214 matching the second plug block 213 is opened on the side of the bottom plate 21 close to the first plug block 212. Slot 215. When the equipment is in use, the staff will assemble multiple base plates 21 in sequence to form the impeller body 2. When two base plates 21 are assembled, the first plug block 212 and the second plug block 213 installed on the side wall of one of the base plates 21 are respectively engaged with the first slot 214 and the second slot 215 opened on the side walls of the other two base plates 21, and the first plug block 212 and the second plug block 213 installed on the side walls of the other two base plates 21 are engaged with the first slot 214 and the second slot 215 opened on the side walls of the connected base plates 21, so that the base plates 21 can be assembled to form the impeller body 2, which is beneficial to maintaining the stability of the splicing of the base plates 21.

[0035] A screw assembly is provided between the multiple base plates 21, and the screw assembly includes a fixed tube 211 fixedly installed on both sides of the impeller body 2. The fixed tube 211 is composed of a plurality of arc-shaped sheet splicing assemblies. Two arc-shaped sheets in the same group are fixedly installed on both sides of the base plate 21. The side walls of the fixed tube 211 are sleeved with a screw tube 5, and the side walls of the fixed tube 211 are provided with thread teeth matching the screw tube 5 in the same group. The screw tube 5 is provided with two symmetrically distributed grooves on the side away from the impeller body 2. The staff splices the multiple base plates 21 together, and then the arc-shaped sheets in the same group are formed into the fixed tube 211. Subsequently, the screw tube 5 is screwed with the thread teeth provided on the side walls of the fixed tube 211, so as to fasten and splice the multiple arc-shaped sheets, and then fix the multiple base plates 21, so as to assemble the impeller body 2. The groove is provided on the top of the screw tube 5, so that the staff can rotate the screw tube 5 with the assistance of existing equipment.

[0036] The inner walls of the two spiral tubes 5 are fixedly installed with a resisting tube 9, and the outer side of the resisting tube 9 is in contact with the inner wall of the fixed tube 211 of the same group. The interior of the spiral tube 5 is provided with the resisting tube 9. When the spiral tube 5 is screwed together with the fixed tube 211 of the same group, the resisting tube 9 is located inside the fixed tube 211, and the outer wall of the resisting tube 9 is in contact with the inner wall of the fixed tube 211, which can play a role in resisting and supporting the fixed tube 211, so that the spiral tube 5 and the fixed tube 211 are stably screwed together. A fixing ring 4 is sleeved on the outer side of the impeller body 2, and an arc groove 10 matching the fixing ring 4 is opened on the outer side of the bottom plate 21. After the spiral tube 5 and the fixed tube 211 are screwed together, the staff will place the fixing ring 4 on the side wall of the impeller body 2 so that the fixing ring 4 is engaged with the arc groove 10 opened on the outer side of the bottom plate 21, which can further tighten the multiple bottom plates 21, which is beneficial to improving the stability of the fit of the bottom plate 21.

[0037] Two symmetrically distributed positioning blocks 7 are provided between the pump shaft 1 and the two retaining tubes 9. A positioning groove 8 matching the positioning block 7 is provided on the outer side of the pump shaft 1 opposite to the inner side of the retaining tube 9. After the impeller body 2 is assembled, the staff sleeves the impeller body 2 on the pump shaft 1 so that the positioning groove 8 provided on the outer side of the retaining tube 9 is aligned with the positioning groove 8 provided on the side wall of the pump shaft 1. The positioning block 7 is then placed in the two positioning grooves 8 of the same group, which can play a role in positioning and fixing the impeller body 2, and is convenient for subsequent use of the equipment. A limiting ring 6 is sleeved on the side wall of the pump shaft 1, and an annular groove matching the limiting ring 6 is provided on the side wall of the pump shaft 1. After the impeller body 2 is positioned, the staff sleeves the limiting ring 6 on the side wall of the pump shaft 1 and engages with the annular groove provided on the side wall of the pump shaft 1, which can further limit the impeller body 2, and is beneficial to maintaining the stability of the installation of the impeller body 2.

[0038] Two symmetrically distributed reinforcing rods 3 are fixedly installed between two adjacent blades 22. The arrangement of the reinforcing rods 3 between two adjacent blades 22 is beneficial to increasing the bearing capacity of the blades 22 and reducing the degree of damage caused by the blades 22 during operation.

[0039] The implementation principle of the embodiment of the present application is as follows: when the device is used, the staff will sequentially assemble multiple bottom plates 21 to form the impeller body 2. When two bottom plates 21 are assembled, the first plug-in block 212 and the second plug-in block 213 installed on the side wall of one bottom plate 21 are respectively engaged with the first slot 214 and the second slot 215 opened on the side walls of the other two bottom plates 21, and the first plug-in block 212 and the second plug-in block 213 installed on the side walls of the other two bottom plates 21 are engaged with the first slot 214 and the second slot 215 opened on the side walls of the connected bottom plates 21, so that the bottom plates 21 can be assembled to form the impeller body 2, which is conducive to maintaining the bottom plates 2 1. The stability of the splicing is then spliced ​​together by means of a screw assembly. Then, the staff places the fixing collar 4 on the side wall of the impeller body 2 so that the fixing collar 4 engages with the arc groove 10 provided on the outer side of the bottom plate 21, which can further fasten the multiple bottom plates 21 and is beneficial to improving the stability of the fit of the bottom plates 21. When the impeller body 2 is assembled, it can be sleeved on the pump shaft 1 for use. When a blade 22 is damaged, the fixing of the bottom plate 21 by the screw assembly can be released, and then the damaged blade 22 can be replaced without replacing the impeller body 2 as a whole, which is beneficial to reducing material waste.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An impeller assembly of an impeller pump, comprising a pump shaft (1) and an impeller body (2) sleeved on a side wall of the pump shaft (1), characterized in that: The impeller body (2) is formed by splicing a plurality of bottom plates (21), the cross-sections of the bottom plates (21) are all fan-shaped, the tops of the bottom plates (21) are all fixedly mounted with blades (22) distributed in an arc-shaped array, a screw assembly is provided between the plurality of bottom plates (21), a fixing ring (4) is sleeved on the outer side of the impeller body (2), and an arc-shaped groove (10) matching the fixing ring (4) is provided on the outer side of the bottom plates (21).

2. The impeller assembly of an impeller pump according to claim 1, characterized in that: The screw-on assembly comprises a fixed tube (211) fixedly mounted on both sides of the impeller body (2); the fixed tube (211) is composed of a plurality of arc-shaped sheet splicing assemblies; two arc-shaped sheets in the same group are fixedly mounted on both sides of the bottom plate (21); the side walls of the fixed tube (211) are sleeved with a screw tube (5); the side walls of the fixed tube (211) are provided with thread teeth matching the screw tube (5) in the same group; and the screw tube (5) is provided with two symmetrically distributed grooves on the side away from the impeller body (2).

3. The impeller assembly of an impeller pump according to claim 2, characterized in that: The inner walls of the two spiral tubes (5) are fixedly mounted with a stop tube (9), and the outer side of the stop tube (9) is in contact with the inner wall of the fixed tube (211) of the same group. Two symmetrically distributed positioning blocks (7) are provided between the pump shaft (1) and the two stop tubes (9). A positioning groove (8) matching the positioning block (7) is provided on the side of the outer side of the pump shaft (1) opposite to the inner side of the stop tube (9).

4. The impeller assembly of an impeller pump according to claim 1, characterized in that: The side wall of the pump shaft (1) is sleeved with a limiting ring (6), and the side wall of the pump shaft (1) is provided with an annular groove matching the limiting ring (6).

5. The impeller assembly of an impeller pump according to claim 1, characterized in that: Two symmetrically distributed first plug blocks (212) are fixedly mounted on one side of the bottom plate (21), a second plug block (213) is fixedly mounted on the other side of the bottom plate (21), a first slot (214) matching the first plug block (212) is provided on a side of the bottom plate (21) close to the second plug block (213), and a second slot (215) matching the second plug block (213) is provided on a side of the bottom plate (21) close to the first plug block (212).

6. The impeller assembly of an impeller pump according to claim 1, characterized in that: Two symmetrically distributed reinforcing rods (3) are fixedly mounted between two adjacent blades (22).

Images