Spiral centrifugal impeller convenient to replace for spiral centrifugal pump

Abstract

The utility model relates to the technical field of spiral centrifugal impellers, in particular to a spiral centrifugal impeller convenient to replace for a spiral centrifugal pump, which comprises a cone-shaped body, a second cavity is arranged in the cone-shaped body, a positioning groove is arranged at the bottom of the second cavity, and a primary spiral blade is fixedly wound outside the cone-shaped body. A spiral cutter is fixedly installed on the edge of the outer side of the first-level spiral blade, a vertical section is fixedly installed on the top of the conical body, a first second-level spiral blade and a second second-level spiral blade are evenly and fixedly installed on the outer portion of the vertical section in the circumferential direction, and a fourth straight cutter used for cutting off winding blocking sundries is fixedly installed on the edge of the bottom of the first-level spiral blade. According to the spiral centrifugal impeller, the lift of the spiral centrifugal impeller is increased on the premise of keeping high efficiency through the arrangement of the two stages of spiral blades, and in the rotating process of the impeller, the cutting of wound and blocked sundries is realized through the arrangement of the straight cutter and the spiral cutter, so that the probability that the spiral centrifugal impeller is wound is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to spiral centrifugal impeller technical field, concretely relates to a spiral centrifugal pump with spiral centrifugal impeller convenient to replace. BACKGROUND

[0002] Spiral centrifugal pump is a special type of pump, it combines the advantages of traditional centrifugal pump and volume pump, especially suitable for the liquid that needs to handle contains big particle or long fiber material, the spiral centrifugal impeller is the most important component in spiral centrifugal pump.

[0003] Spiral centrifugal impeller is usually sleeved and installed on the rotating shaft during use, then the spiral centrifugal impeller is fixedly installed on the rotating shaft by using the nut, and the installation and dismounting are time-consuming and laborious, and the spiral centrifugal impeller is used for conveying liquid or fluid by rotating during use, however, winding and blockage may occur during conveying, and the conveying efficiency of the spiral centrifugal impeller is reduced. UTILITARIAN CONTENT

[0004] The utility model discloses a spiral centrifugal pump with spiral centrifugal impeller convenient to replace, which has the advantages of simple structure, reasonable design and convenient replacement.

[0005] The utility model discloses a spiral centrifugal pump with spiral centrifugal impeller convenient to replace, which has the advantages of simple structure, reasonable design and convenient replacement.

[0006] A spiral centrifugal pump with spiral centrifugal impeller convenient to replace, which has the advantages of simple structure, reasonable design and convenient replacement.

[0007] Preferably, the first-stage spiral blade is fixedly installed with a fourth straight cutter for cutting off winding and blocking sundries at the bottom edge thereof, and a first straight cutter is fixedly installed at the top edge of the first-stage spiral blade.

[0008] Preferably, the first-stage spiral blade is fixedly installed with a fourth straight cutter for cutting off winding and blocking sundries at the bottom edge thereof, and a first straight cutter is fixedly installed at the top edge of the first-stage spiral blade.

[0009] Preferably, the first-stage spiral blade is fixedly installed with a fourth straight cutter for cutting off winding and blocking sundries at the bottom edge thereof, and a first straight cutter is fixedly installed at the top edge of the first-stage spiral blade.

[0010] Preferably, the first-stage spiral blade is fixedly installed with a fourth straight cutter for cutting off winding and blocking sundries at the bottom edge thereof, and a first straight cutter is fixedly installed at the top edge of the first-stage spiral blade.

[0011] Preferably, the clamping spring assembly comprises a clamping spring body clamped in the clamping groove, and the clamping spring body is provided with a clamping hole at both ends.

[0012] The utility model discloses beneficial effect lies in: the utility model discloses through the setting of two -stage helical blade, under the premise of keeping high efficiency, the lift of helical centrifugal impeller has been increased, and through the setting of straight cutter and helical cutter, in the process of impeller rotation, the cutting of the sundries of winding blockage has been realized, the probability of helical centrifugal impeller being wound has been reduced, and the working stability of helical centrifugal impeller has been improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure explosion schematic diagram of the utility model;

[0014] Figure 2 It is the clamping spring assembly perspective drawing of the utility model;

[0015] Figure 3 It is the whole structure section view of the utility model.

[0016] In the drawing: 1, conical body;2, primary helical blade;3, helical cutter;4, vertical section;5, first straight cutter;6, first secondary helical blade;7, second straight cutter;8, clamping spring assembly;81, clamping spring body;82, clamping hole;9, clamping groove;10, third straight cutter;11, second secondary helical blade;12, fourth straight cutter;13, first cavity;14, second cavity;15, positioning groove. DETAILED DESCRIPTION

[0017] The following detailed description of the application in conjunction with the drawings, it is necessary to point out here that the following detailed description is only used to further illustrate the application, can not be understood as limiting the scope of the application, the skilled person in the art can make some non-essential improvements and adjustments to the application according to the above application.

[0018] EMBODIMENT

[0019] Please refer to Figure 1 、 Figure 2 And Figure 3 , a kind of helical centrifugal pump with helical centrifugal impeller convenient to replace, including conical body 1, conical body 1 inside is provided with second cavity 14, second cavity 14 bottom is provided with positioning groove 15, conical body 1 outside is fixedly connected with primary helical blade 2, the outer side edge of primary helical blade 2 is fixedly installed with helical cutter 3, conical body 1 top is fixedly installed with vertical section 4, vertical section 4 outside circumferentially evenly fixedly installed with first secondary helical blade 6 and second secondary helical blade 11.

[0020] In use, the conical body 1 is used to fix and install the primary helical blade 2, the helical cutter 3 is used to helically cut the wrapped sundries, the vertical section 4 is used to fix the first secondary helical blade 6 and the second secondary helical blade 11, through the arrangement of the two-stage blades, the lift of the helical centrifugal impeller is improved, the second cavity 14 is used to be sleeved and installed on the output shaft of the motor, and the positioning groove 15 is used to realize the fixation between the conical body 1 and the motor shaft.

[0021] Please refer to Figure 1 , Figure 2 and Figure 3 , the bottom edge of the primary helical blade 2 is fixedly installed with the fourth straight cutter 12 for cutting off the wrapped and blocked sundries, the top edge of the primary helical blade 2 is fixedly installed with the first straight cutter 5, the top edge of the first secondary helical blade 6 is fixedly installed with the third straight cutter 10, and the top of the third straight cutter 10 is above the top of the vertical section 4, the top edge of the second secondary helical blade 11 is fixedly installed with the second straight cutter 7, and the top of the second straight cutter 7 is above the top of the vertical section 4, the vertical section 4 is internally provided with the first cavity 13, the inner wall of the first cavity 13 is provided with the clamping groove 9 at the top, and the clamping groove 9 is clamped with the clamping spring assembly 8, and the clamping spring assembly 8 comprises the clamping spring body 81 clamped in the clamping groove 9, and the clamping spring body 81 is provided with the clamping hole 82 at both ends.

[0022] In use, the first straight cutter 5, the second straight cutter 7, the third straight cutter 10 and the fourth straight cutter 12 are used to cut the wrapped sundries, thereby reducing the probability of the helical centrifugal impeller being wrapped and blocked, the clamping spring assembly 8 is used to clamp and install the motor shaft and the helical centrifugal impeller, thereby facilitating the quick installation and disassembly of the helical centrifugal impeller.

[0023] It should be noted that the helical centrifugal impeller convenient to replace is used in the helical centrifugal pump, in use, first, the second cavity 14 in the conical body 1 is inserted into the motor shaft, the top of the output end of the motor shaft is flush with the lower edge of the clamping groove 9, the positioning groove 15 is used to realize the fixation between the conical body 1 and the motor shaft, at this time, the pointed pliers are inserted into the clamping hole 82, and then the clamping spring body 81 is clamped and fixed into the clamping groove 9, thereby realizing the quick clamping and fixation between the helical centrifugal impeller and the motor shaft, when disassembling, the clamping spring assembly 8 is directly disassembled, thereby realizing the quick installation and disassembly of the helical centrifugal impeller, when the helical centrifugal impeller rotates, the helical cutter 3, the first straight cutter 5, the second straight cutter 7, the third straight cutter 10 and the fourth straight cutter 12 are used to cut the blocked sundries such as water plants, thereby reducing the probability of the helical centrifugal impeller being wrapped and blocked, through the arrangement of the primary helical blade 2, the first secondary helical blade 6 and the second secondary helical blade 11, the lift of the helical centrifugal impeller is improved through the two-stage blades of the equipment.

[0024] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A replaceable spiral centrifugal impeller for a spiral centrifugal pump, comprising a conical body (1), characterized in that: The cone (1) has a second cavity (14) inside, and a positioning groove (15) is provided at the bottom of the second cavity (14). A first-stage helical blade (2) is fixedly wound around the outside of the cone (1). A helical cutter (3) is fixedly installed on the outer edge of the first-stage helical blade (2). A vertical section (4) is fixedly installed on the top of the cone (1). A first-stage second-stage helical blade (6) and a second-stage second-stage helical blade (11) are evenly fixedly installed on the outer circumference of the vertical section (4).

2. The easily replaceable spiral centrifugal impeller for a spiral centrifugal pump according to claim 1, characterized in that: The bottom edge of the first-stage spiral blade (2) is fixedly equipped with a No. 4 straight cutter (12) for cutting off tangled and blocking debris, and the top edge of the first-stage spiral blade (2) is fixedly equipped with a No. 1 straight cutter (5).

3. The easily replaceable spiral centrifugal impeller for a spiral centrifugal pump according to claim 1, characterized in that: The top edge of the first secondary spiral blade (6) is fixedly installed with a third straight cutter (10), and the top of the third straight cutter (10) is located above the top of the vertical section (4).

4. The easily replaceable spiral centrifugal impeller for a spiral centrifugal pump according to claim 1, characterized in that: The second-stage spiral blade (11) is fixedly mounted with a second straight cutter (7) at its top edge, and the top of the second straight cutter (7) is located above the top of the vertical section (4).

5. A replaceable spiral centrifugal impeller for a spiral centrifugal pump according to claim 1, characterized in that: The vertical section (4) has a cavity (13) inside, and a snap-fit ​​groove (9) is provided on the top of the inner wall of the cavity (13). A snap-fit ​​spring assembly (8) is snapped into the snap-fit ​​groove (9).

6. A replaceable spiral centrifugal impeller for a spiral centrifugal pump according to claim 5, characterized in that: The snap ring assembly (8) includes a snap ring body (81) that snaps into the snap ring groove (9), and clamping holes (82) are provided at both ends of the snap ring body (81).

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