A chuck structure for a submersible motor for wells

Abstract

This utility model discloses a chuck structure for a submersible motor used in wells, including a barrel, a rotor, and a coil. An upper chuck and a lower chuck are respectively engaged on the upper and lower sides of the barrel. An upper bearing seat and a lower bearing seat are pressed together at the upper and lower ends of the barrel. The upper bearing seat and the upper chuck, as well as the lower bearing seat and the lower chuck, are respectively fastened and fixedly connected by bolts. This utility model allows for easy disassembly and replacement of the coil inside the barrel, facilitating installation and maintenance, providing high replaceability, convenient machining and casting, and saving maintenance costs.

Description

Technical Field

[0001] This utility model relates to the technical field of submersible motor structure for wells, and in particular to a chuck structure for a submersible motor for wells. Background Technology

[0002] like Figure 1 As shown, the existing submersible motor structure for wells includes a barrel 1, a rotor 2, and a coil 3. An upper fixed seat 4 and a lower fixed seat 5 are welded to both ends of the barrel, respectively. An upper bearing seat 6 and a lower bearing seat 7 are welded to the outer ends of the upper and lower fixed seats, respectively. A dust cover 8 is installed on the outside of the upper bearing seat 1. The dust cover is fixedly connected to the upper bearing seat 1 by bolts 11. A sealing ring 12 is installed between the dust cover and the upper bearing seat. A copper sleeve 9 and a sand-proof sleeve 10 are installed between the dust cover at the end of the rotor and the rotor.

[0003] Because the upper and lower fixed seats are connected to the barrel and the upper and lower bearing seats by welding, the internal coils are difficult to disassemble. If the motor fails and the coils burn out, it is difficult to replace the coils directly. Instead, the entire welded barrel needs to be replaced, resulting in waste and high maintenance costs. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model designs a chuck structure for a submersible motor for wells.

[0005] The present invention adopts the following technical solution: A chuck structure for a well submersible motor includes a barrel, a rotor, and a coil. An upper chuck and a lower chuck are respectively clamped to the upper and lower sides of the barrel. An upper bearing seat and a lower bearing seat are pressed and connected to the upper and lower ends of the barrel. The upper bearing seat and the upper chuck, as well as the lower bearing seat and the lower chuck, are respectively fastened and fixedly connected by fastening bolts.

[0006] Preferably, the upper and lower sides of the barrel are provided with slots, and the retaining rings are engaged in the slots. The upper and lower sides of the barrel are respectively engaged with the upper chuck and the lower chuck by retaining rings, and the retaining rings are engaged with the outer ends of the upper chuck and the lower chuck.

[0007] Preferably, a sealing groove is provided on the outer ring surface of the upper bearing seat and the lower bearing seat, and a second sealing ring is provided in the sealing groove. The second sealing ring is respectively installed between the machine barrel and the upper bearing seat and between the machine barrel and the lower bearing seat.

[0008] Preferably, a sealing gasket is installed on the upper part of the fastening bolt mounting location on the upper bearing housing.

[0009] Preferably, a top cover is mounted on the upper bearing housing by fixing bolts.

[0010] Preferably, the upper cover is fitted with a skeleton oil seal on the rotor sleeve, and a retaining ring is snapped onto the outside of the skeleton oil seal.

[0011] Preferably, a rubber sandproof sleeve is installed at the end of the upper cover outside the rotor.

[0012] The beneficial effects of this utility model are: the upper and lower chucks are respectively connected to the upper and lower sides of the barrel by retaining rings, and the upper bearing seat is fixedly connected to the upper chuck and the lower bearing seat is fixedly connected to the lower chuck by fastening bolts, which facilitates the disassembly and replacement of the coil inside the barrel, makes installation and maintenance convenient, has strong replaceability, is easy to process and cast, and saves maintenance costs. Attached Figure Description

[0013] Figure 1 This is a structural diagram of an existing submersible motor for wells; Figure 2 This is a schematic diagram of the structure of this utility model; In the diagram: 1. Barrel, 2. Rotor, 3. Coil, 4. Upper fixed seat, 5. Lower fixed seat, 6. Upper bearing seat one, 7. Lower bearing seat one, 8. Dust cover, 9. Copper sleeve, 10. Sandproof sleeve, 11. Bolt, 12. Sealing ring one, 13. Upper chuck, 14. Lower chuck, 15. Upper bearing seat two, 16. Lower bearing seat two, 17. Sealing ring two, 18. Fastening bolt, 19. Sealing gasket, 20. Top cover, 21. Fixing bolt, 22. Frame oil seal, 23. Retaining ring, 24. Rubber sandproof sleeve, 25. Snap ring. Detailed Implementation

[0014] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings: Example: Figure 2 As shown, a chuck structure for a well submersible motor includes a barrel 2, a rotor 2, and a coil 3. The barrel has slots on its upper and lower sides, and retaining rings are engaged in the slots. The upper chuck 13 and lower chuck 14 are engaged on the upper and lower sides of the barrel by retaining rings 25, respectively. The retaining rings are engaged on the outer ends of the upper and lower chucks. The upper bearing seat 2 15 and lower bearing seat 2 16 are pressed and connected at the upper and lower ends of the barrel. The upper bearing seat 2 is fastened to the upper chuck, and the lower bearing seat 2 is fastened to the lower chuck by fastening bolts 18.

[0015] Sealing grooves are provided on the outer ring surfaces of the upper bearing housing and the lower bearing housing, and sealing rings 17 are provided in the sealing grooves. The sealing rings 17 are respectively installed between the machine barrel and the upper bearing housing and between the machine barrel and the lower bearing housing.

[0016] A sealing gasket 19 is installed on the upper part of the fastening bolt mounting area of ​​the upper bearing housing 2. A top cover 20 is installed on the upper bearing housing 2 via fixing bolts 21. A skeleton oil seal 22 is fitted over the rotor on the top cover, and a retaining ring 23 is snapped onto the outside of the skeleton oil seal. A rubber sandproof sleeve 24 is installed at the end of the top cover outside the rotor.

[0017] The upper and lower chucks of this utility model are respectively connected to the upper and lower sides of the barrel by retaining rings. The upper bearing seat 2 is fixedly connected to the upper chuck and the lower bearing seat 2 is fixedly connected to the lower chuck by fastening bolts. This facilitates the disassembly and replacement of the coil inside the barrel, making installation and maintenance convenient, highly replaceable, easy to process and cast, and saving maintenance costs.

[0018] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A chuck structure for a submersible motor for well applications, comprising a barrel, a rotor, and a coil, characterized in that, The upper and lower chucks are respectively clamped to the upper and lower sides of the machine barrel. The upper and lower bearing seats are pressed and connected to the upper and lower ends of the machine barrel. The upper bearing seat and the upper chuck, as well as the lower bearing seat and the lower chuck, are respectively fastened and fixed by fastening bolts.

2. The chuck structure for a submersible motor for wells according to claim 1, characterized in that, The upper and lower sides of the barrel are respectively provided with slots, and the retaining rings are engaged in the slots. The upper and lower sides of the barrel are respectively engaged with the upper chuck and the lower chuck by retaining rings, and the retaining rings are engaged with the outer ends of the upper chuck and the lower chuck.

3. The chuck structure for a submersible motor for wells according to claim 1, characterized in that, The upper and lower bearing seats are provided with sealing grooves on their outer ring surfaces, and sealing rings are provided in the sealing grooves. The sealing rings are respectively installed between the machine barrel and the upper bearing seat and between the machine barrel and the lower bearing seat.

4. The chuck structure for a submersible motor for wells according to claim 1, characterized in that, A sealing gasket is installed at the upper part of the fastening bolt mounting point on the upper bearing seat.

5. The chuck structure for a submersible motor for wells according to claim 1, characterized in that, The upper bearing housing is fitted with a top cover by fixing bolts.

6. The chuck structure for a submersible motor for wells according to claim 5, characterized in that, The upper cover is fitted with a skeleton oil seal on the rotor sleeve, and a retaining ring is snapped onto the outside of the skeleton oil seal.

7. The chuck structure for a submersible motor for wells according to claim 5, characterized in that, The upper cover is fitted with a rubber sandproof sleeve at the end located outside the rotor.

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