Ceramic pump impeller structure convenient to disassemble

Abstract

The utility model discloses a ceramic pump impeller structure convenient to disassemble. The ceramic pump impeller structure comprises a ceramic impeller, an impeller insert, a baffle, a main shaft and an installation sealing structure. The impeller insert is correspondingly embedded in the ceramic impeller, a shaft hole corresponding to the size of the main shaft is formed in the impeller insert, and the impeller insert correspondingly enables the ceramic impeller to be installed on the main shaft through a bearing. According to the technical scheme, the impeller insert is embedded in the ceramic impeller, and the threaded hole is formed in the impeller insert; in addition, an independent baffle is additionally arranged, a through hole is formed in the baffle, the fixed baffle is pressed and fixed to the shaft end of the main shaft through the through hole, a threaded hole and a connecting bolt, then the shaft end face of the main shaft is jacked through the effect of a threaded ejector rod in a threaded ejection hole, and the ceramic impeller can be slowly pulled out of the main shaft by screwing up the ejection bolt. The whole structure is very ingenious and reasonable in arrangement, the ceramic impeller can be disassembled, the ceramic impeller can be disassembled, cost is saved, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of ceramic pump impeller disassembly technology, specifically a ceramic pump impeller structure that is easy to disassemble. Background Technology

[0002] In the prior art, ceramic pumps are well received by users due to their corrosion resistance, wear resistance, and high temperature resistance. There are also many types of ceramic pump mechanisms in the prior art, such as: "A ceramic centrifugal pump" disclosed in CN201865967U; "A ceramic screw pump" disclosed in CN2446308Y; and "A ceramic pump" disclosed in CN218894792U.

[0003] like Figure 1 As shown, existing ceramic pumps typically include a main shaft, a ceramic pump impeller mounted on a bearing, and a sealing structure for sealing. In actual use, after a ceramic pump experiences a seal leak, the sealing structure needs to be replaced. When replacing the seal, the impeller needs to be removed. However, the impeller is made of ceramic and fits tightly with the main shaft. After operation, it becomes very tightly bound to the main shaft, making it generally difficult to remove. Therefore, it can only be pried out with a pry bar. However, since the impeller is ceramic, even a slight pry with a pry bar can crack a perfectly intact impeller, easily causing damage to the impeller, resulting in significant economic losses, and making repairs very difficult.

[0004] Therefore, in order to solve the above problems, it is necessary to develop a ceramic pump impeller structure that is reasonably designed and can be easily disassembled and installed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a ceramic pump impeller structure that is easy to disassemble; the technical solution is as follows:

[0006] A ceramic pump impeller structure that is easy to disassemble includes a ceramic impeller, an impeller insert, a baffle, a main shaft, and a sealing structure mounted on the main shaft; the impeller insert is correspondingly embedded inside the ceramic impeller, and the impeller insert is provided with a shaft hole corresponding to the size of the main shaft; the impeller insert is used to mount the ceramic impeller on the main shaft through a bearing.

[0007] The impeller insert is also provided with a threaded hole at its end face. The baffle is an independent component and is also provided with a through hole. The position of the through hole on the baffle corresponds to the position of the threaded hole at the end face of the impeller insert. A threaded ejection hole is also provided at the center of the baffle.

[0008] The through hole of the baffle and the threaded hole of the impeller insert are corresponded, a connecting bolt is installed in the hole, the connecting bolt is installed in the threaded hole through the through hole, the baffle and the impeller insert are fixed into an integrated whole through the connecting bolt, and the threaded ejection hole in the center of the baffle is corresponded with the shaft end face of the main shaft;

[0009] The threaded ejection bolt is installed in the threaded ejection hole, the threaded ejection bolt is pressed at the shaft end face of the main shaft after passing through the threaded ejection hole, the ceramic impeller is slowly pulled out of the main shaft by tightening the threaded ejection bolt through the cooperation of the baffle, the connecting bolt and the impeller insert.

[0010] Further, the inner diameter of the threaded ejection hole in the middle of the baffle is smaller than the outer diameter of the shaft end face of the main shaft, the baffle is pressed at the shaft end face of the main shaft after the connecting bolt is tightened, so that the baffle is fixed.

[0011] Further, four through holes are uniformly arranged on the baffle, and the through hole positions are reasonably arranged to make the impeller disassembly more smooth.

[0012] Further, four threaded holes are uniformly arranged on the end face of the impeller insert, and the threaded hole positions are reasonably arranged to make the impeller disassembly more smooth.

[0013] Further, the impeller insert is an insert structure made of stainless steel; the impeller insert itself also has the characteristics of good corrosion resistance, wear resistance and high temperature resistance, so it is made of stainless steel.

[0014] Further, the impeller insert and the ceramic impeller are fixed into an integrated whole in the form of a clamping groove cooperation.

[0015] Beneficial effects: the technical scheme of the device has the following beneficial effects: the device is characterized in that the impeller insert is embedded in the ceramic impeller, threaded holes are arranged on the impeller insert, a separate baffle is additionally arranged, through holes are arranged on the baffle, the baffle is pressed and fixed at the shaft end of the main shaft through the through holes, the threaded holes and the connecting bolt, the shaft end face of the main shaft is pushed up through the threaded ejection rod in the threaded ejection hole, and the ceramic impeller can be slowly pulled out of the main shaft by tightening the threaded ejection bolt, the overall structure is very ingenious and reasonable, the ceramic impeller can be disassembled, the cost is saved, and the device is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a prior art structure diagram;

[0017] Figure 2 It is a structure diagram of the utility model;

[0018] Figure 3 It is a baffle structure diagram of the utility model;

[0019] Figure 4 For Figure 3 top view;

[0020] Figure 5 For the baffle installation position map in the utility model;

[0021] Figure 6 For the impeller dismounting schematic view in the utility model;

[0022] Among them, ceramic impeller 1;Impeller insert 2;Baffle 3;Through hole 31;Main shaft 4;Shaft hole 41;Sealing structure 5;Threaded hole 6;Connecting bolt 7;Threaded knockout hole 8;Knockout bolt 9. Specific embodiments

[0023] The utility model is further illustrated below in combination with the drawings and specific embodiments, and the embodiments are implemented on the premise of the technical scheme of the utility model, and it should be understood that these embodiments are only used for illustrating the utility model and not for limiting the scope of the utility model.

[0024] As Figure 2 shown, a ceramic pump impeller structure convenient to dismount, including ceramic impeller 1, impeller insert 2, baffle 3, main shaft 4 and the sealing structure 5 installed on main shaft 4;Impeller insert 2 is correspondingly embedded in the inside of ceramic impeller 1, and the shaft hole 41 corresponding to the size of main shaft 4 is arranged on impeller insert 2, and impeller insert 2 is correspondingly installed ceramic impeller 1 on main shaft 4 through bearing;The end face of impeller insert 2 is also provided with threaded hole 6.

[0025] As Figure 3 and Figure 4 shown, baffle 3 is an independent component, and threaded hole 31 is also arranged on baffle 3, the position of threaded hole 31 on baffle 3 corresponds to the position of threaded hole 6 at the end face of impeller insert 2, and threaded knockout hole 8 is also arranged at the central position of baffle 3;

[0026] As Figure 5 shown, the position of threaded hole 31 on baffle 3 corresponds to the position of threaded hole 6 on impeller insert 2, connecting bolt 7 is installed in the hole after corresponding, connecting bolt 7 passes through threaded hole 31 and is installed in threaded hole 6, baffle 3 and impeller insert 2 are fixed into an integral whole through connecting bolt 7, and threaded knockout hole 8 at the central position of baffle 3 corresponds to the position of the shaft end face of main shaft 4 accordingly;

[0027] As Figure 6 shown, knockout bolt 9 is installed in threaded knockout hole 8, and knockout bolt 9 is pressed at the shaft end face of main shaft 4 after passing through threaded knockout hole 8, and ceramic impeller 1 is correspondingly dismounted by the cooperation of baffle 3, connecting bolt 7 and impeller insert 2 after continuing to tighten knockout bolt 9.

[0028] The inner diameter of the threaded ejection hole 8 in the baffle 3 is smaller than the outer diameter of the shaft end surface of the main shaft 4; after the connecting bolt 7 is tightened, the baffle 3 is correspondingly pressed against the shaft end surface of the main shaft 4, thereby fixing the baffle 3.

[0029] Four evenly spaced through holes 31 are arranged on the baffle 3; the end surface of the impeller insert 2 is also provided with four evenly spaced threaded holes 6; the impeller insert 2 is an insert structure made of stainless steel; the impeller insert 2 and the ceramic impeller 1 are correspondingly fixed into one body through the form of clamping groove cooperation.

[0030] In the technical scheme of the device, a stainless steel impeller insert is lined in the inside of the ceramic impeller; threaded holes are arranged on the end surface of the impeller insert for being pulled by bolts when the impeller is disassembled; in addition, a baffle is designed, the baffle has through holes connected with the threaded holes on the end surface of the impeller insert, and a threaded ejection hole is arranged in the middle; a ejection bolt is installed in the threaded ejection hole to stop the end surface of the main shaft; the ejection bolt is slowly tightened to pull out the impeller.

[0031] First, the connecting bolt is passed through the through hole on the special baffle and the connecting thread on the end surface of the impeller insert to be connected and tightened, so that the baffle stops against the end surface of the main shaft; then the ejection bolt is screwed on the threaded ejection hole in the center of the baffle to stop on the end surface of the main shaft; the wrench is slowly tightened to pull out the impeller, thereby realizing the disassembly of the impeller.

[0032] The above specific embodiment is only a preferred embodiment of the present application, and is not used to limit the implementation and the scope of claims of the present application; any equivalent changes and modifications made according to the content of the patent protection scope of the present application should be included in the patent application scope of the present application.

Claims

1. A ceramic pump impeller structure for easy disassembly, characterized by: The application relates to a ceramic impeller structure, which comprises a ceramic impeller (1), an impeller insert (2), a baffle (3), a main shaft (4) and a sealing structure (5) mounted on the main shaft (4); the impeller insert (2) is correspondingly embedded in the ceramic impeller (1), the impeller insert (2) is provided with a shaft hole (41) corresponding to the size of the main shaft (4), and the ceramic impeller (1) is mounted on the main shaft (4) through the bearing of the impeller insert (2). The end surface of the impeller insert (2) is further provided with a threaded hole (6), the baffle (3) is an independent component, the baffle (3) is also provided with a through hole (31), the position of the through hole (31) on the baffle (3) corresponds to the position of the threaded hole (6) on the end surface of the impeller insert (2), and a threaded ejection hole (8) is further arranged at the central position of the baffle (3). The position of the through hole (31) on the baffle (3) corresponds to the position of the threaded hole (6) on the impeller insert (2), a connecting bolt (7) is mounted in the holes, the connecting bolt (7) passes through the through hole (31) and is mounted in the threaded hole (6), the baffle (3) and the impeller insert (2) are fixed into an integrated whole through the connecting bolt (7), and the threaded ejection hole (8) at the central position of the baffle (3) corresponds to the position of the shaft end surface of the main shaft (4). The threaded ejection hole (8) is provided with an ejection bolt (9), the ejection bolt (9) is pressed against the shaft end surface of the main shaft (4) after passing through the threaded ejection hole (8), and the ceramic impeller (1) is correspondingly dismounted by continuing to tighten the ejection bolt (9) through the cooperation of the baffle (3), the connecting bolt (7) and the impeller insert (2).

2. A ceramic pump impeller structure for easy disassembly according to claim 1, characterized in that: The inner diameter of the threaded ejection hole (8) in the baffle (3) is smaller than the outer diameter of the shaft end surface of the main shaft (4), the baffle (3) is correspondingly pressed against the shaft end surface of the main shaft (4) after the connecting bolt (7) is tightened, so that the baffle (3) is fixed.

3. A ceramic pump impeller structure for easy disassembly according to claim 2, characterized in that: The baffle (3) is provided with four uniformly spaced through holes (31).

4. A ceramic pump impeller structure for easy disassembly according to claim 3, characterized in that: The end surface of the impeller insert (2) is also provided with four uniformly spaced threaded holes (6).

5. A ceramic pump impeller structure for easy disassembly according to claim 4, characterized in that: The impeller insert (2) is an insert structure made of stainless steel.

6. A ceramic pump impeller structure for easy disassembly according to claim 4, characterized in that: The impeller insert (2) and the ceramic impeller (1) are correspondingly fixed into an integrated whole through the cooperation of a clamping groove.

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