Sectional structure of double suction pump rotor

Abstract

A rotor sectional type structure of a double suction pump comprises an intermediate shaft, an impeller is connected to the intermediate shaft, a long key is arranged on the intermediate shaft, the impeller is installed on the intermediate shaft through the long key, and a non-driving end bearing component and a driving end bearing component are arranged on the two sides of the intermediate shaft. The non-driving end bearing component and the driving end bearing component are connected with a non-driving shaft and a driving shaft respectively, the end of the non-driving shaft and the end of the driving shaft are connected with the middle shaft through a split-half clamping ring, a shaft sleeve is arranged on the outer side of the split-half clamping ring, the middle shaft, the non-driving shaft and the driving shaft are sleeved with the shaft sleeve, and a mechanical sealing component is installed on the shaft sleeve. Shaft sleeve check rings and shaft sleeve nuts are installed on the non-driving shaft and the driving shaft, short keys are arranged at the ends of the non-driving shaft and the driving shaft, and connecting grooves are machined in the shaft sleeves and connected with the tail ends of the short keys and the tail ends of the long keys. According to the utility model, the mechanical sealing part can be replaced without dismounting the bearing part, and the operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a double-suction pump rotor segmented structure. Background Art

[0002] The mechanical seal of the double-suction pump is the main vulnerable part and needs to be replaced frequently. To replace the mechanical seal of the conventional rotor structure, the bearing components at both ends of the rotor need to be disassembled before the replacement can be carried out. In particular, the disassembly of the bearings is labor-intensive and difficult, and the bearings may be damaged if not handled with care. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a double-suction pump rotor segmented structure in view of the deficiencies of the above-mentioned prior art.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] The axle of claim 1, wherein the guide wheel is located adjacent to the drive shaft and the guide wheel is located adjacent to the drive shaft, wherein the guide wheel is located adjacent to the drive shaft.

[0006] Furthermore, the ends of the non-driving shaft and the driving shaft as well as both ends of the intermediate shaft are processed with "T"-shaped heads, and the half-circuit rings are clamped on the "T"-shaped heads.

[0007] Furthermore, sealing rings are respectively installed at the mouth ring positions on both sides of the impeller.

[0008] Compared with the prior art, the utility model has a double-suction pump rotor segmented structure, which allows the replacement of mechanical sealing components without disassembling bearing components, making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural diagram of the utility model;

[0010] Figure 2 This is a schematic diagram of the disassembly of the intermediate shaft, the non-driving shaft and the driving shaft of the utility model;

[0011] Figure 3 This is a schematic diagram of the disassembly of the shaft sleeve, the non-driving shaft and the driving shaft of the utility model;

[0012] Among them, 1. intermediate shaft, 2. impeller, 3. sealing ring, 4. long key, 5. non-drive end bearing component, 6. drive end bearing component, 7. non-drive shaft, 8. drive shaft, 9. half-circuit ring, 10. "T" head, 11. sleeve, 12. mechanical sealing component, 13. sleeve retaining ring, 14. sleeve nut, 15. short key. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below.

[0014] like Figure 1 As shown, a double-suction pump rotor segmented structure includes an intermediate shaft 1, an impeller 2 is connected to the intermediate shaft 1, and sealing rings 3 are respectively installed at the mouth ring positions on both sides of the impeller 2. A long keyway is processed on the intermediate shaft 1, and a long key 4 is arranged in the long keyway. The impeller 2 is mounted on the intermediate shaft 1 through the long key 4. Non-drive end bearing components 5 and drive end bearing components 6 are provided on both sides of the intermediate shaft 1, and bearings are arranged in the non-drive end bearing components 5 and the drive end bearing components 6. The non-drive end bearing component 5 is connected to the non-drive shaft 7, and the drive end bearing component 6 is connected to the drive shaft 8. The non-drive shaft 7 and the drive shaft end 8 are connected to the intermediate shaft 1 through a half-circuit 9. In this embodiment, "T"-shaped heads 10 are processed at the ends of the non-drive shaft 7 and the drive shaft 8 and the two ends of the intermediate shaft 1, and the half-circuit 9 is clamped on the "T"-shaped head 10, so that the intermediate shaft 1 is connected to the non-drive shaft 7 and the drive shaft 8 as a whole.

[0015] A shaft sleeve 11 is provided on the outside of the half-clamp 9, and the shaft sleeve 11 is sleeved on the intermediate shaft 1, the non-drive shaft 7 and the drive shaft 8. A mechanical sealing component 12 is installed on the shaft sleeve 11, and a shaft sleeve retaining ring 13 and a shaft sleeve nut 14 are installed on the non-drive shaft 7 and the drive shaft 8. The shaft sleeve nut 14 is screwed on the non-drive shaft 7 and the drive shaft 8 to lock the shaft sleeve retaining ring 13, the shaft sleeve 11 and the impeller 2. Short key grooves are machined on the ends of the non-drive shaft 7 and the drive shaft 8, and a short key 15 is provided on the short key groove. A connecting groove is machined inside the shaft sleeve 11, and the connecting groove is connected to the short key 15 on the non-drive shaft 7 and the drive shaft 8 and the end of the long key 4 on the intermediate shaft 1.

[0016] like Figure 2 and Figure 3As shown, when replacing the mechanical seal component 12, loosen the sleeve nut 14, then move the sleeve 11 connected to the mechanical seal component 12 to the side until the short key 15 is completely exposed, then remove the half-circuit 9, and then remove the non-drive end bearing component 5 together with the non-drive shaft 7 and the drive end bearing component 6 together with the drive shaft 8. After removing the short key 15, the sleeve 11 can be taken out, and then the mechanical seal component 12 can be replaced. After the replacement is completed, it can be reassembled in reverse according to the disassembly order, and the sleeve 11 can be reinstalled on the non-drive shaft 7 and the drive shaft 8, and the short key 15 is installed. The non-drive shaft 7 and the drive shaft 8 are reconnected to the intermediate shaft 1 with the half-circuit 9, and locked with the sleeve nut 14. Compared with the previous replacement of mechanical seal components, the double-suction pump rotor of this structure can replace the mechanical seal components without disassembling the bearing components, which is more convenient to operate.

[0017] The present invention is not limited to the embodiments described. Those skilled in the art may make some modifications or changes without departing from the spirit or scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A double-suction pump rotor segmented structure, characterized by: The non-drive shaft and the drive shaft are connected to each other through a half-circuit break and a half-circuit break, and the non-drive shaft and the drive shaft are connected to each other through a half-circuit break.

2. The double-suction pump rotor segmented structure according to claim 1, characterized in that: The ends of the non-driving shaft and the driving shaft as well as both ends of the intermediate shaft are processed with "T"-shaped heads, and the half-circuit rings are clamped on the "T"-shaped heads.

3. The double-suction pump rotor segmented structure according to claim 1, characterized in that: Sealing rings are respectively installed at the mouth ring positions on both sides of the impeller.

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