Rotor for submersible electric pump

Abstract

The utility model relates to the technical field of submersible electric pump rotors, in particular to a rotor for a submersible electric pump, which comprises a rotor core and a connecting rod, the rotor core is sleeved with the surface of the connecting rod, a fixing device is arranged on the surface of the connecting rod, and the surface of the connecting rod is slidably connected with the surface of a circular ring. According to the rotor for the submersible electric pump, through cooperation of the fixing devices and the connecting rods, the insertion rods on the surfaces of the two semicircular blocks are inserted into the grooves in the surfaces of the connecting rods, the semicircular blocks on the two sides abut against the other side of the rotor iron core, and the rotor iron core is fixed through the insertion rods. An operator attaches the surfaces of the two bent plates to the surfaces of the two semicircular blocks, the bent plates on the two sides are fixed to the surfaces of the semicircular blocks on the two sides through four sets of second bolts, the semicircular blocks on the two sides can be fixed, the rotor iron core can be rapidly mounted and dismounted, the rotor iron core can be rapidly mounted and dismounted, maintenance can be more convenient, and the maintenance efficiency is improved. And the maintenance cost of the device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible electric pump rotors, in particular to a rotor for a submersible electric pump. Background Art

[0002] The motors used in submersible electric pumps are of the following types: dry type (the motor is completely sealed), semi-dry type (the stator of the motor is sealed, and the rotor runs in water), oil-filled type (the motor is filled with oil to prevent moisture from invading the windings), and wet type (the motor is filled with water, and both the stator and rotor run in water).

[0003] For example, the motor rotor structure for a submersible electric pump with the authorization announcement number "CN203645421U" uses knurling to connect and fix the rotor core to the front pressure shaft, which overcomes the axial movement of the rotor core during the operation of the motor and improves the operating stability of the motor. However, when the device fixes the core rotor, it needs to be fixed by knurling. However, when the device fixes the rotor core by knurling, it will make it inconvenient to replace the rotor core, which makes the device inconvenient to repair. At the same time, the device is not convenient to replace the rotor core. When there is a problem with the core, it needs to be replaced as a whole, which increases the maintenance cost of the device. Utility Model Content

[0004] The utility model aims to solve the problem that the device is inconvenient to replace, which leads to increased maintenance cost, and proposes a rotor for a submersible electric pump.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A rotor for a submersible electric pump is designed, comprising a rotor core and a connecting rod, the rotor core is sleeved with the surface of the connecting rod, a fixing device is provided on the surface of the connecting rod, the surface of the connecting rod is slidably connected to the surface of a circular ring, the circular ring is slidably connected to a first bolt through a through hole opened on the surface, one end of the first bolt is threadedly connected to a threaded hole opened on the surface of the connecting rod, and one end of the connecting rod is fixedly connected to a first mounting rod.

[0007] Preferably, the fixing device includes a semicircular block and a bent plate, the surfaces of the semicircular blocks on both sides are tightly pressed against the surface of the connecting rod, the surfaces of the semicircular blocks on both sides are tightly pressed against the surface of the bent plate, the bent plate is slidably connected to the surface of the second bolt through a through hole opened on the surface, one end of the second bolt is threadedly connected to the threaded hole opened on the surface of the semicircular block, the surfaces of the semicircular blocks on both sides are fixedly connected with an insertion rod, and the surfaces of the insertion rod on both sides are clamped with the grooves opened on the surface of the connecting rod.

[0008] Preferably, one end of the connecting rod is fixedly connected to a second mounting rod, and key grooves are symmetrically provided on the surface of the second mounting rod.

[0009] Preferably, one end of the second mounting rod is fixedly connected to a mounting block, and one side of the rotor core is tightly pressed against the surface of the annular ring.

[0010] Preferably, one end of the rotor core is tightly pressed against the surfaces of the semicircular blocks on both sides, and grooves are symmetrically provided on the surfaces of the bent plates on both sides.

[0011] The utility model provides a rotor for a submersible electric pump, which has the following beneficial effects: through the cooperation of a fixing device and a connecting rod, a circular ring is sleeved onto the surface of the connecting rod, the through hole on the surface of the circular ring is aligned with the threaded hole on the surface of the connecting rod, the circular ring is fixed by a first bolt, and the rotor core is sleeved onto the surface of the connecting rod so that the rotor core is pressed against the surface of the circular ring, and at the same time, the insertion rods on the surfaces of the two semicircular blocks are inserted into the grooves on the surfaces of the connecting rod so that the semicircular blocks on both sides are pressed against each other, and the semicircular blocks on both sides are pressed against the other side of the rotor core, and an operator fits two bent plates with the surfaces of the two semicircular blocks, and fixes the bent plates on both sides to the surfaces of the semicircular blocks on both sides by four groups of second bolts, so that the semicircular blocks on both sides can be fixed, so that the rotor core can be quickly installed and disassembled, and the rotor core can be quickly installed and disassembled, so that maintenance can be more convenient and the maintenance cost of the device can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 A front view of

[0014] Figure 3 for Figure 1 A front cross-sectional view of

[0015] Figure 4 It is a three-dimensional schematic diagram of the insertion rod and the semicircular block;

[0016] Figure 5 for Figure 1 A side cross-sectional view of

[0017] Figure 6 for Figure 5 Schematic diagram of part A.

[0018] In the figure: 1. rotor core, 2. fixing device, 201. semicircular block, 202. plug rod, 203. bent plate, 204. second bolt, 3. first mounting rod, 4. first bolt, 5. ring, 6. connecting rod, 7. second mounting rod, 8. keyway, 9. mounting block. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] See attached Figure 1-6 : In this embodiment, a rotor for a submersible electric pump includes a rotor core 1 and a connecting rod 6. The rotor core 1 is sleeved with the surface of the connecting rod 6. A fixing device 2 is provided on the surface of the connecting rod 6. The surface of the connecting rod 6 is slidably connected to the surface of a ring 5. The ring 5 is slidably connected to the first bolt 4 through a through hole opened on the surface. The ring 5 can be installed on the surface of the connecting rod 6 through the first bolt 4. At the same time, the ring 5 can limit the position of the rotor core 1. One end of the first bolt 4 is threadedly connected to the threaded hole opened on the surface of the connecting rod 6. One end of the connecting rod 6 is fixedly connected to a first mounting rod 3. Bearings are installed on the surfaces of the first mounting rod 3 and the second mounting rod 7.

[0021] One end of the connecting rod 6 is fixedly connected to a second mounting rod 7, and key grooves 8 are symmetrically provided on the surface of the second mounting rod 7. The key grooves 8 can be used to facilitate the installation of the impeller. One end of the second mounting rod 7 is fixedly connected to a mounting block 9. One side of the rotor core 1 is tightly pressed against the surface of the ring 5, and one end of the rotor core 1 is tightly pressed against the surfaces of the semicircular blocks 201 on both sides. The semicircular blocks 201 on both sides can fix the position of the rotor core 1, and grooves are symmetrically provided on the surfaces of the bent plates 203 on both sides.

[0022] The fixing device 2 includes a semicircular block 201 and a bent plate 203. The surfaces of the semicircular blocks 201 on both sides are tightly pressed against the surface of the connecting rod 6. The surfaces of the semicircular blocks 201 on both sides are tightly pressed against the surface of the bent plate 203. The bent plate 203 is slidingly connected to the surface of the second bolt 204 through the through hole opened on the surface. The four second bolts 204 can fix the bent plates 203 on both sides to the surfaces of the semicircular blocks 201 on both sides. One end of the second bolt 204 is threadedly connected to the threaded hole opened on the surface of the semicircular block 201. The surfaces of the semicircular blocks 201 on both sides are fixedly connected with the insertion rod 202. The surfaces of the insertion rod 202 on both sides are clamped with the grooves opened on the surface of the connecting rod 6.

[0023] Working principle:

[0024] When installing the submersible pump rotor:

[0025] Sleeve the ring 5 onto the surface of the connecting rod 6, align the through hole on the surface of the ring 5 with the threaded hole on the surface of the connecting rod 6, fix the ring 5 with the first bolt 4, and sleeve the rotor core 1 onto the surface of the connecting rod 6 so that the rotor core 1 and the surface of the ring 5 are pressed tightly. At the same time, insert the insertion rods 202 on the surfaces of the two semicircular blocks 201 into the grooves on the surface of the connecting rod 6 so that the semicircular blocks 201 on both sides are pressed tightly, and the semicircular blocks 201 on both sides are pressed tightly against the other side of the rotor core 1. The operator fits the two bent plates 203 with the surfaces of the two semicircular blocks 201, and fixes the bent plates 203 on both sides to the surfaces of the semicircular blocks 201 on both sides with four sets of second bolts 204, so that the semicircular blocks 201 on both sides can be fixed, so that the rotor core 1 can be quickly installed and disassembled.

[0026] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A rotor for a submersible electric pump, comprising a rotor core (1) and a connecting rod (6), wherein the rotor core (1) and the connecting rod (6) are sleeved on their surfaces, and characterized in that: The surface of the connecting rod (6) is provided with a fixing device (2), the surface of the connecting rod (6) is slidably connected to the surface of the ring (5), the ring (5) is slidably connected to the first bolt (4) via a through hole opened on the surface, one end of the first bolt (4) is threadedly connected to a threaded hole opened on the surface of the connecting rod (6), and one end of the connecting rod (6) is fixedly connected to the first mounting rod (3).

2. A rotor for a submersible electric pump according to claim 1, characterized in that: The fixing device (2) comprises a semicircular block (201) and a bent plate (203); the surfaces of the semicircular blocks (201) on both sides are tightly pressed against the surface of the connecting rod (6); the surfaces of the semicircular blocks (201) on both sides are tightly pressed against the surface of the bent plate (203); the bent plate (203) is slidably connected to the surface of a second bolt (204) via a through hole provided on the surface; one end of the second bolt (204) is threadedly connected to a threaded hole provided on the surface of the semicircular block (201); the surfaces of the semicircular blocks (201) on both sides are fixedly connected to an insertion rod (202); the surfaces of the insertion rod (202) on both sides are clamped with a groove provided on the surface of the connecting rod (6).

3. A rotor for a submersible electric pump according to claim 2, characterized in that: One end of the connecting rod (6) is fixedly connected to a second mounting rod (7), and key grooves (8) are symmetrically provided on the surface of the second mounting rod (7).

4. A rotor for a submersible electric pump according to claim 3, characterized in that: One end of the second mounting rod (7) is fixedly connected to a mounting block (9), and one side of the rotor core (1) is tightly pressed against the surface of the ring (5).

5. A rotor for a submersible electric pump according to claim 2, characterized in that: One end of the rotor core (1) is tightly pressed against the surfaces of the semicircular blocks (201) on both sides, and grooves are symmetrically provided on the surfaces of the bent plates (203) on both sides.

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