Submersible pump loader for well

Abstract

A submersible pump loader for a well comprises a lower support subassembly, a lower steel pipe, a lower loader seat subassembly, a middle steel pipe, a middle loader seat subassembly, an upper steel pipe and an upper support subassembly which are connected through a stud, a lower nut and an upper nut and sequentially stacked from bottom to top, and a lower thrust bearing assembly is arranged on the upper portion of the lower support subassembly through a positioning screw. An upper thrust bearing is fixed on the lower portion of the upper support subassembly through a sunk screw, a middle thrust bearing assembly I is arranged on the upper portion of the lower loader seat subassembly through a positioning screw, and a middle thrust bearing assembly II is arranged on the upper loader seat subassembly through a positioning screw. A shaft is rotatably fixed through an upper thrust bearing, a lower thrust bearing assembly, a middle thrust bearing assembly I and a middle thrust bearing assembly II, and cooling water passing holes are formed in the lower support subassembly, the lower loader seat subassembly, the upper loader seat subassembly and the upper support subassembly. According to the utility model, an external copper pipe is removed, and the defect that the water pump is easy to collide and damage in the transportation process and when the water pump goes down to a well and is hoisted is overcome.

Description

Technical Field

[0001] The utility model relates to a submersible pump carrier for a well. Background Art

[0002] At present, the carriers of well submersible pumps on the market are all double-shell carriers for heat dissipation considerations, that is, the outer part of the well submersible pump carrier is a copper tube, but due to the low hardness of the copper tube, it is easy to be damaged during transportation; it is also easy to be damaged when the water pump is hoisted down the well, resulting in a high rate of return to the factory for repair of the water pump, which seriously affects the economic benefits of the enterprise. Therefore, designing a well submersible pump carrier with a low rate of return to the factory for repair is a technical problem that needs to be solved at present. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a submersible pump carrier for a well.

[0004] The technical solution of the utility model to solve the technical problem is:

[0005] A submersible pump carrier for a well comprises a lower bracket assembly, a lower steel pipe, a lower carrier seat assembly, a middle steel pipe, a middle carrier seat assembly, an upper steel pipe and an upper bracket assembly which are sequentially stacked from bottom to top and connected by stud bolts, a lower nut and an upper nut; a lower thrust bearing assembly is arranged on the upper part of the lower bracket assembly by means of positioning screws; an upper thrust bearing is fixed on the lower part of the upper bracket assembly by means of countersunk screws; a middle thrust bearing assembly I is arranged on the upper part of the lower carrier seat assembly by means of positioning screws; a middle thrust bearing assembly II is arranged on the upper carrier seat assembly by means of positioning screws; a shaft is rotatably fixed by means of the upper thrust bearing, the lower thrust bearing assembly, the middle thrust bearing assembly I and the middle thrust bearing assembly II; and a shaft is fixed on the lower bracket assembly by means of the upper thrust bearing, the lower thrust bearing assembly, the middle thrust bearing assembly I and the middle thrust bearing assembly II. There are cooling water passing holes on the assembly, the lower carrier seat assembly, the upper carrier seat assembly and the upper bracket assembly, there are cooling water passing gaps between the lower bracket assembly and the lower thrust bearing assembly, between the lower thrust bearing assembly and the lower carrier seat assembly, between the lower carrier seat assembly and the lower thrust bearing assembly, between the lower carrier seat assembly and the middle thrust bearing assembly I, between the middle thrust bearing assembly I and the upper carrier seat assembly, between the upper carrier seat assembly and the middle thrust bearing assembly II, between the middle thrust bearing assembly II and the upper thrust bearing, there are cooling water passing gaps between the lower thrust bearing assembly and the lower steel pipe, between the middle thrust bearing assembly I and the middle steel pipe, between the middle thrust bearing assembly II and the upper thrust bearing and the upper steel pipe.

[0006] As a preferred solution of the utility model, the cooling water passage clearance between the lower bracket assembly and the lower thrust bearing assembly, between the lower thrust bearing assembly and the lower carrier seat assembly, between the lower carrier seat assembly and the lower thrust bearing assembly, between the lower carrier seat assembly and the middle thrust bearing assembly I, between the middle thrust bearing assembly I and the upper carrier seat assembly, between the upper carrier seat assembly and the middle thrust bearing assembly II, and between the middle thrust bearing assembly II and the upper thrust bearing is 14 mm.

[0007] As a preferred solution of the utility model, the lower thrust bearing assembly is composed of a lower thrust bearing seat, a lower thrust bearing and a lower thrust plate. Corresponding positioning internal threaded blind holes are provided on the lower bracket portion and the lower thrust bearing seat. The lower bracket portion and the lower thrust bearing seat are positioned and installed by positioning screws. The lower thrust bearing seat is fixed to the lower thrust bearing seat by countersunk screws. The lower thrust plate is arranged on the upper part of the lower thrust bearing seat, and a tapered sleeve is provided between the lower thrust plate and the shaft.

[0008] As a preferred embodiment of the utility model, the middle thrust bearing assembly I is composed of a middle thrust bearing seat I, a middle thrust bearing I and a middle thrust plate I. There are corresponding positioning internal threaded blind holes on the lower load-bearing seat assembly and the middle thrust bearing seat I. The lower load-bearing seat assembly and the middle thrust bearing seat I are positioned and installed by positioning screws. The middle thrust bearing I is fixed to the middle thrust bearing seat I by countersunk screws. The middle thrust plate I is arranged on the upper part of the middle thrust bearing seat I, and a tapered sleeve is provided between the middle thrust plate I and the shaft.

[0009] As a preferred embodiment of the utility model, the middle thrust bearing assembly II is composed of a middle thrust bearing seat II, a middle thrust bearing II and a middle thrust plate II. There are corresponding positioning internal threaded blind holes on the upper carrier seat assembly and the middle thrust bearing seat II. The upper carrier seat assembly and the middle thrust bearing seat II are positioned and installed by positioning screws. The middle thrust bearing II is fixed to the middle thrust bearing seat II by countersunk screws. The middle thrust plate II is arranged on the upper part of the middle thrust bearing II, and a tapered sleeve is provided between the middle thrust plate II and the shaft.

[0010] As a preferred solution of the utility model, paper pads are provided at the connection between the lower bracket assembly and the lower steel pipe, at the connection between the lower steel pipe and the lower load-bearing device seat assembly, at the connection between the lower load-bearing device seat assembly and the middle steel pipe, at the connection between the middle steel pipe and the middle load-bearing device seat assembly, at the connection between the middle load-bearing device seat assembly and the upper steel pipe, and at the connection between the upper steel pipe and the upper bracket assembly.

[0011] As a preferred solution of the utility model, a mechanical seal is provided between the upper bracket part and the shaft.

[0012] Compared with the prior art, the utility model has the following advantages: 1. The external copper tube is removed, which solves the problem of easy collision and damage during transportation and when the water pump is hoisted down the well. At the same time, after the copper tube of the carrier is removed, the total height remains unchanged (that is, the diameter of the Zengdali steel pipe), and the effectiveness of the internal structure of the space is improved. The water capacity is increased by 30% inside. A water circulation system is added. The water capacity and heat dissipation conditions during operation are guaranteed. 2. Reduce the number of assembly process accessories. Improve the processing speed. The bearing seat adopts the steel plate processing method and enhances the heat dissipation conditions. It also reduces the cost and the investment in molds. 3. The positioning bolts are changed from the bearing seat to the base to reduce the occurrence of falling accidents. The carrier is more stable to use. 4. The longitudinal clearance of the assembly is increased from 6 mm to 14 mm, which effectively controls the processing size requirements of the accessories and is more conducive to processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the prior art;

[0015] Figure 1 1 is the lower bracket assembly, 2 is rubber pad Ⅰ, 3 is hexagon bolt Ⅰ, 4 is hexagon nut Ⅰ, 5 is spring washer Ⅰ, 6 is stud bolt, 7 is lower thrust bearing seat, 8 is lower thrust bearing, d is lower thrust plate, 9 is countersunk screw Ⅰ, 10 is lower steel pipe, 11 is lower load bearing seat assembly, 12 is positioning screw, f is middle thrust bearing seat, g is middle thrust bearing, 13 is middle thrust plate, b is middle steel pipe, 14 is tapered sleeve, 15 is shaft, 16 is paper pad, 17 is upper steel pipe, 18 is upper thrust bearing, 19 is countersunk screw Ⅱ, 20 is upper bracket assembly, 21 is water seal, 22 is mechanical seal seat Ⅰ, 23 is spring washer Ⅱ, 24 is nut Ⅱ, 25 is rubber pad Ⅱ, 26 is hexagon bolt Ⅱ, 27 is mechanical seal Ⅱ, 28 is flat pad, 29 is shaft retaining ring, and q is seal (q). DETAILED DESCRIPTION

[0016] As shown in the figure, the well submersible pump carrier comprises a lower bracket assembly 1, a lower steel pipe 10, a lower carrier seat assembly 11, a middle steel pipe b, a middle carrier seat assembly c, an upper steel pipe 17 and an upper bracket assembly 20 which are sequentially stacked from bottom to top and connected by stud bolts 6, a lower nut 4 and an upper nut 24. A lower thrust bearing assembly is provided at the upper part of the lower bracket assembly 1 by means of a positioning screw 12, an upper thrust bearing 18 is fixed at the lower part of the upper bracket assembly 20 by means of a countersunk screw 19, a middle thrust bearing assembly I is provided at the upper part of the lower carrier seat assembly 11 by means of a positioning screw 12, a middle thrust bearing assembly II is provided on the upper carrier seat assembly c by means of a positioning screw 12, and the upper thrust bearing 18, the lower thrust bearing assembly, the middle thrust bearing assembly I and the middle thrust bearing assembly II are rotatably fixed. Shaft 15 has cooling water passing holes on the lower bracket assembly 1, the lower carrier seat assembly 11, the upper carrier seat assembly c and the upper bracket assembly 20. There are cooling water passing gaps between the lower bracket assembly 1 and the lower thrust bearing assembly, between the lower thrust bearing assembly and the lower carrier seat assembly 11, between the lower carrier seat assembly 11 and the lower thrust bearing assembly, between the lower carrier seat assembly 11 and the middle thrust bearing assembly I, between the middle thrust bearing assembly I and the upper carrier seat assembly c, between the upper carrier seat assembly c and the middle thrust bearing assembly II, and between the middle thrust bearing assembly II and the upper thrust bearing 18. There are cooling water passing gaps between the lower thrust bearing assembly and the lower steel pipe 10, between the middle thrust bearing assembly I and the middle steel pipe b, and between the middle thrust bearing assembly II and the upper thrust bearing 18 and the upper steel pipe 17.

[0017] The cooling water clearance between the lower bracket assembly 1 and the lower thrust bearing assembly, between the lower thrust bearing assembly and the lower carrier seat assembly 11, between the lower carrier seat assembly 11 and the lower thrust bearing assembly, between the lower carrier seat assembly 11 and the middle thrust bearing assembly I, between the middle thrust bearing assembly I and the upper carrier seat assembly c, between the upper carrier seat assembly c and the middle thrust bearing assembly II, and between the middle thrust bearing assembly II and the upper thrust bearing 18 is 14 mm.

[0018] The lower thrust bearing assembly is composed of a lower thrust bearing seat 7, a lower thrust bearing 8 and a lower thrust plate d. There are corresponding positioning internal threaded blind holes on the lower bracket portion 1 and the lower thrust bearing seat 7. The lower bracket portion 1 and the lower thrust bearing seat 7 are positioned and installed by positioning screws 12. The lower thrust bearing seat 7 is fixed to the lower thrust bearing seat 7 by countersunk screws 9. The lower thrust plate d is arranged on the upper part of the lower thrust bearing seat 7, and a tapered sleeve 14 is provided between the lower thrust plate d and the shaft 15.

[0019] The middle thrust bearing assembly I is composed of a middle thrust bearing seat If, a middle thrust bearing Ig and a middle thrust plate I13. There are corresponding positioning internal threaded blind holes on the lower load-bearing seat 11 and the middle thrust bearing seat If. The lower load-bearing seat 11 and the middle thrust bearing seat If are positioned and installed by positioning screws 12. The middle thrust bearing Ig is fixed to the middle thrust bearing seat If by countersunk screws 9. The middle thrust plate I13 is arranged on the upper part of the middle thrust bearing seat If, and a tapered sleeve 14 is provided between the middle thrust plate I13 and the shaft 15.

[0020] The middle thrust bearing assembly II is composed of a middle thrust bearing seat IIk, a middle thrust bearing IIh and a middle thrust plate IIe. There are corresponding positioning internal threaded blind holes on the upper carrier seat assembly c and the middle thrust bearing seat IIk. The upper carrier seat assembly c and the middle thrust bearing seat IIk are positioned and installed by positioning screws 12. The middle thrust bearing IIh is fixed to the middle thrust bearing seat IIk by countersunk screws 9. The middle thrust plate IIe is arranged on the upper part of the middle thrust bearing IIh, and a tapered sleeve 14 is provided between the middle thrust plate IIe and the shaft 15.

[0021] Paper pads 16 are provided at the connection between the lower bracket part 1 and the lower steel pipe 10, at the connection between the lower steel pipe 10 and the lower load-bearing device seat part 11, at the connection between the lower load-bearing device seat part 11 and the middle steel pipe b, at the connection between the middle steel pipe b and the middle load-bearing device seat part c, at the connection between the middle load-bearing device seat part c and the upper steel pipe 17, and at the connection between the upper steel pipe 17 and the upper bracket part 20.

[0022] A mechanical seal 27 is provided between the upper bracket assembly 20 and the shaft 15 .

Claims

1. A submersible pump carrier for a well, comprising a lower bracket assembly (1), a lower steel pipe (10), a lower carrier seat assembly (11), a middle steel pipe (b), a middle carrier seat assembly (c), an upper steel pipe (17) and an upper bracket assembly (20) which are sequentially stacked from bottom to top and connected by stud bolts (6) and lower nuts (4) and upper nuts (24), characterized in that: A lower thrust bearing assembly is provided on the upper part of the lower bracket assembly (1) by means of a positioning screw (12); an upper thrust bearing (18) is fixed on the lower part of the upper bracket assembly (20) by means of a countersunk screw (19); a middle thrust bearing assembly I is provided on the upper part of the lower carrier seat assembly (11) by means of a positioning screw (12); a middle thrust bearing assembly II is provided on the upper carrier seat assembly (c) by means of a positioning screw (12); a shaft (15) is rotatably fixed through the upper thrust bearing (18), the lower thrust bearing assembly, the middle thrust bearing assembly I and the middle thrust bearing assembly II; a cooling water passage is provided on the lower bracket assembly (1), the lower carrier seat assembly (11), the upper carrier seat assembly (c) and the upper bracket assembly (20); Through holes, there are cooling water passing gaps between the lower bracket assembly (1) and the lower thrust bearing assembly, between the lower thrust bearing assembly and the lower carrier seat assembly (11), between the lower carrier seat assembly (11) and the lower thrust bearing assembly, between the lower carrier seat assembly (11) and the middle thrust bearing assembly I, between the middle thrust bearing assembly I and the upper carrier seat assembly (c), between the upper carrier seat assembly (c) and the middle thrust bearing assembly II, between the middle thrust bearing assembly II and the upper thrust bearing (18), and there are cooling water passing gaps between the lower thrust bearing assembly and the lower steel pipe (10), between the middle thrust bearing assembly I and the middle steel pipe (b), and between the middle thrust bearing assembly II and the upper thrust bearing (18) and the upper steel pipe (17).

2. The well submersible pump carrier according to claim 1, characterized in that: The cooling water passing clearance between the lower bracket assembly (1) and the lower thrust bearing assembly, between the lower thrust bearing assembly and the lower carrier seat assembly (11), between the lower carrier seat assembly (11) and the lower thrust bearing assembly, between the lower carrier seat assembly (11) and the middle thrust bearing assembly I, between the middle thrust bearing assembly I and the upper carrier seat assembly (c), between the upper carrier seat assembly (c) and the middle thrust bearing assembly II, and between the middle thrust bearing assembly II and the upper thrust bearing (18) is 14 mm.

3. The well submersible pump carrier according to claim 1 or 2, characterized in that: The lower thrust bearing assembly is composed of a lower thrust bearing seat (7), a lower thrust bearing (8) and a lower thrust plate (d). The lower bracket assembly (1) and the lower thrust bearing seat (7) are provided with corresponding positioning internal threaded blind holes. The lower bracket assembly (1) and the lower thrust bearing seat (7) are positioned and installed by positioning screws (12). The lower thrust bearing seat (7) is fixed to the lower thrust bearing seat (7) by countersunk screws (9). The lower thrust plate (d) is arranged on the upper part of the lower thrust bearing seat (7). A tapered sleeve (14) is provided between the lower thrust plate (d) and the shaft (15).

4. The well submersible pump carrier according to claim 1 or 2, characterized in that: The middle thrust bearing assembly I is composed of a middle thrust bearing seat I (f), a middle thrust bearing I (g) and a middle thrust plate I (13). Corresponding positioning internal threaded blind holes are provided on the lower bearing seat assembly (11) and the middle thrust bearing seat I (f). The lower bearing seat assembly (11) and the middle thrust bearing seat I (f) are positioned and installed by positioning screws (12). The middle thrust bearing I (g) is fixed to the middle thrust bearing seat I (f) by countersunk screws (9). The middle thrust plate I (13) is arranged on the upper part of the middle thrust bearing seat I (f). A tapered sleeve (14) is provided between the middle thrust plate I (13) and the shaft (15).

5. The well submersible pump carrier according to claim 1 or 2, characterized in that: The middle thrust bearing assembly II is composed of a middle thrust bearing seat II (k), a middle thrust bearing II (h) and a middle thrust plate II (e). The upper bearing seat (c) and the middle thrust bearing seat II (k) are provided with corresponding positioning internal threaded blind holes. The upper bearing seat (c) and the middle thrust bearing seat II (k) are positioned and installed by positioning screws (12). The middle thrust bearing II (h) is fixed to the middle thrust bearing seat II (k) by countersunk screws (9). The middle thrust plate II (e) is arranged on the upper part of the middle thrust bearing II (h). A tapered sleeve (14) is provided between the middle thrust plate II (e) and the shaft (15).

6. The well submersible pump carrier according to claim 1 or 2, characterized in that: Paper pads (16) are provided at the connection between the lower support assembly (1) and the lower steel pipe (10), at the connection between the lower steel pipe (10) and the lower bearing seat assembly (11), at the connection between the lower bearing seat assembly (11) and the middle steel pipe (b), at the connection between the middle steel pipe (b) and the middle bearing seat assembly (c), at the connection between the middle bearing seat assembly (c) and the upper steel pipe (17), and at the connection between the upper steel pipe (17) and the upper support assembly (20).

7. The well submersible pump carrier according to claim 1 or 2, characterized in that: A mechanical seal (27) is provided between the upper bracket portion (20) and the shaft (15).

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