Anti-collision structure of submersible motor

Abstract

The utility model discloses an anti-collision structure of a submersible motor, and relates to the technical field of oil extraction equipment, the anti-collision structure of the submersible motor comprises a submersible motor, the top of the submersible motor is fixedly provided with a protector, the surface of the protector is provided with an arc-shaped protective shell, the surface of the protector is provided with an annular groove, and the annular groove is provided with a through hole. The device comprises a submersible motor, a protector is fixedly installed on the top of the submersible motor, the arc-shaped protective shell is arranged on the surface of the protector, the annular groove is formed in the surface of the protector, the sliding blocks are fixedly connected to the two sides of the protective shell, and the sliding blocks are fixedly connected to the two sides of the protective shell. The surface of the sliding block slides relative to the inner wall of the annular groove. According to the anti-collision structure of the submersible motor, the cable extending out of the submersible motor can be covered, the situation that when the submersible motor runs under an oil well, the inner wall of the oil well collides with the cable, the cable is damaged, and the pump needs to be pulled up and down again is avoided, and therefore it is guaranteed that oil extraction operation is conducted smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of oil production equipment, in particular to an anti-collision structure for a submersible motor. Background Technique

[0002] A submersible electric pump is a practical oil pumping device in oil production operations. The submersible electric pump is a multi-stage centrifugal pump working underground. It is lowered into the well together with the oil pipe. The ground power supply transmits electrical energy to the submersible motor underground through a transformer, a control cabinet and a submersible cable, so that the motor drives the multi-stage centrifugal pump to rotate, converts electrical energy into mechanical energy, and lifts the well fluid in the oil well to the ground.

[0003] Patent No.: CN216564772U provides an anti-collision structure for a submersible motor, which solves the problem that during the process of lowering the submersible electric pump into the wellbore, due to the limited space in the wellbore, the small flat cable is often knocked and damaged, and it is necessary to re-lift and lower the pump for repair operations. The structure is simple, easy to use, and has a low manufacturing cost.

[0004] However, during the implementation of this solution, only the connection part between the submersible motor and the cable can be protected, while the other parts of the cable are always located outside, so the rest of the cable lacks protection. Therefore, during the process of lowering the well and during use, it is easy to be squeezed and damaged, affecting the smooth progress of oil production work. Therefore, an anti-collision structure for a submersible motor is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide an anti-collision structure for a submersible motor, which can solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an anti-collision structure for a submersible motor, including a submersible motor, a protector is fixedly installed at the top of the submersible motor, a protective shell with an arc shape is arranged on the surface of the protector, a ring groove is opened on the surface of the protector, both sides of the protective shell are fixedly connected with sliders, and the surface of the sliders slides with the inner wall of the ring groove.

[0007] Preferably, an arc-shaped spring is placed on the inner wall of the ring groove, and both ends of the arc-shaped spring are fixedly connected with the surfaces of the two sliders respectively.

[0008] Preferably, connection grooves are opened on both the upper and lower sides of the inner wall of the ring groove, connecting rods are slidably connected to both the upper and lower sides of the slider, and the two connecting rods are respectively adapted to the two connection grooves.

[0009] Preferably, two operating rods that both protrude from the surface of the slider are slidably connected inside the slider. Rack teeth are fixedly connected to the opposite sides of the two connecting rods and the two operating rods. Two first gears and two second gears are rotatably connected inside the slider. The two operating rods and the two second gears are arranged vertically. The surface of the operating rod is meshed with the surface of the second gear. The surface of the second gear is meshed with the rack teeth on the operating rod. The surface of the first gear is meshed with the rack teeth on the connecting rod.

[0010] Preferably, a return spring is fixedly connected to the opposite ends of the two connecting rods, and a return spring is fixedly connected between the two operating rods.

[0011] Preferably, elastic wire clips arranged at equal intervals are fixedly connected to the inner wall of the protective shell.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] (1) The anti-collision structure of the submersible motor can cover the cable extending from the submersible motor, thereby avoiding the collision of the cable by the inner wall of the oil well when the submersible motor operates in the oil well, resulting in cable damage and the need for re-lowering and pulling out of the pump, thus ensuring the smooth progress of oil production operations and improving the use effect of the device, which is worthy of promotion.

[0014] (2) The anti-collision structure of the submersible motor can restrain the cable extending from the submersible motor through the arrangement of elastic wire clips, avoiding the separation of the cable from the protective shell and the situation of the cable being damaged and worn, and at the same time facilitating the staff to fix the wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is the present utility model Figure 1 magnified schematic diagram at A in;

[0018] Figure 3 is a schematic surface structure diagram of the protector of the present utility model;

[0019] Figure 4 is a schematic internal structure diagram of the slider of the present utility model;

[0020] Figure 5 is a schematic internal structure diagram of the protective shell of the present utility model.

[0021] Reference numerals: 1, submersible motor; 2, protective shell; 3, protector; 4, annular groove; 5, arc spring; 6, slider; 7, connecting groove; 8, connecting rod; 9, operating rod; 10, first gear; 11, rack; 12, return spring; 13, second gear; 14, elastic wire clip. Detailed implementation manners

[0022] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.

[0023] Please refer to Figures 1-5 , the present invention provides a technical solution: an anti-collision structure for a submersible motor, including a submersible motor 1. A protector 3 is fixedly installed on the top of the submersible motor 1 to compensate for the loss of lubricating oil in the submersible motor 1. The surface of the protector 3 is provided with an arc-shaped protective shell 2, which can cover the cable extending from the submersible motor 1, thereby avoiding the collision of the cable by the inner wall of the oil well when the submersible motor 1 operates in the oil well, resulting in cable damage and the need for re-pumping operation, thus ensuring the smooth progress of oil production operations and improving the use effect of the device, which is worthy of promotion.

[0024] Secondly, the protective shell 2 is made of TPU, which has good elasticity and wear resistance, thereby improving the service life of the protective shell 2 and reducing the replacement frequency of the protective shell 2.

[0025] Furthermore, an annular groove 4 is opened on the surface of the protector 3. An arc spring 5 is placed on the inner wall of the annular groove 4. Both sides of the protective shell 2 are fixedly connected with sliders 6. The surface of the sliders 6 slides with the inner wall of the annular groove 4. Both ends of the arc spring 5 are fixedly connected with the surfaces of the two sliders 6 respectively, for resetting the sliders 6 and the protective shell 2.

[0026] Connecting grooves 7 are opened on the upper and lower sides of the inner wall of the annular groove 4. Connecting rods 8 are slidably connected to the upper and lower sides of the sliders 6 respectively. The two connecting rods 8 are respectively adapted to the two connecting grooves 7, so that they can be inserted into the connecting grooves 7 to achieve the purpose of installing the sliders 6, thereby realizing the installation of the protective shell 2. The opposite ends of the two connecting rods 8 are fixedly connected with a return spring 12 for resetting the two connecting rods 8.

[0027] The slider 6 is internally slidably connected to two operating rods 9 that both protrude from the surface of the slider 6, and a return spring 12 is also fixedly connected between the two operating rods 9. The two connecting rods 8 and the opposite sides of the two operating rods 9 are fixedly connected to racks 11. The slider 6 is internally rotatably connected to two first gears 10 and two second gears 13. The two operating rods 9 and the two second gears 13 are distributed up and down, and the surface of the operating rod 9 is meshed with the surface of the second gear 13, and the surface of the second gear 13 is meshed with the surface of the rack 11 on the operating rod 9, and the surface of the first gear 10 is meshed with the surface of the rack 11 on the connecting rod 8.

[0028] Furthermore, the inner wall of the protective shell 2 is fixedly connected with elastic wire clamps 14 arranged at equal distances. Through the setting of the elastic wire clamps 14, the cables extending from the submersible motor 1 can be restrained, avoiding the cables from being separated from the protective shell 2 and causing the cables to be damaged and worn, and at the same time making it convenient for the staff to fix the wiring harness.

[0029] Specifically, when in use, the staff can open the annular groove 4 and the connecting groove 7 on the surface of the protective shell 2, and then compress the reset spring 12 between the two operating rods 9 by pressing the two operating rods 9, and the relative movement of the two operating rods 9 drives the racks 11 on the two operating rods 9 to move, thereby driving the second gear 13 to rotate, thereby driving the first gear 10 to rotate through the meshing connection, and then driving the connecting rod 8 to move, so that the reset spring 12 between the two connecting rods 8 is compressed, and the two connecting rods 8 are gradually retracted into the slider 6, and then the slider 6 can be inserted into the annular groove 4, and then the operating rod 9 is no longer pressed, and then under the elastic force of the two sets of reset springs 12, the connecting rod 8 and The operating rod 9 returns to its original state, so that the connecting rod 8 is stuck in the connecting groove 7, and then the arc spring 5 can be welded to the two sliders 6. Subsequently, when the protective shell 2 contacts the inner wall of the oil well, the inner wall of the oil well squeezes the protective shell 2, so that the protective shell 2 gradually approaches the surface of the protector 3, and at the same time, the two sliders 6 slide in the annular groove 4 and compress the arc spring 5. When the protective shell 2 is separated from the inner wall of the oil well, the device returns to its original state under the elastic force of the protective shell 2 itself and the elastic force of the arc spring 5, thereby better protecting the cable and avoiding the cable from being damaged by the inner wall of the oil well, thereby ensuring the smooth progress of the adoption work. At the same time, the device has a simple structure and is easy to operate, which further improves the promotion value of the device.

[0030] Secondly, the same components can be arranged on the gas separator on the protector 3 and the casing of the centrifugal pump, so as to comprehensively protect the cables in the oil well, improve the overall protection effect of the cables, and ensure the smooth progress of oil production.

[0031] Working principle: When the protective shell 2 comes into contact with the inner wall of the oil well, the inner wall of the oil well squeezes the protective shell 2, causing the protective shell 2 to gradually approach the surface of the protector 3. At the same time, the two sliders 6 slide in the annular groove 4 and compress the arc-shaped spring 5. When the protective shell 2 separates from the inner wall of the oil well, under the elastic force of the protective shell 2 itself and the arc-shaped spring 5, the device returns to its original state, thus better protecting the cable.

[0032] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can also be made without departing from the gist of the present invention.

Claims

1. A collision prevention structure for a submersible motor, comprising a submersible motor (1), characterized in that: A protector (3) is fixedly installed on the top of the submersible motor (1); an arc-shaped protective shell (2) is arranged on the surface of the protector (3); an annular groove (4) is provided on the surface of the protector (3); sliders (6) are fixedly connected to both sides of the protective shell (2); and the surface of the slider (6) and the inner wall of the annular groove (4) slide relative to each other.

2. The anti-collision structure of a submersible motor according to claim 1, characterized in that: An arc spring (5) is placed on the inner wall of the annular groove (4), and two ends of the arc spring (5) are respectively fixedly connected to the surfaces of two sliding blocks (6).

3. The anti-collision structure of a submersible motor according to claim 1, characterized in that: The inner wall of the annular groove (4) is provided with connecting grooves (7) on both upper and lower sides, and the sliding block (6) is slidably connected with connecting rods (8) on both upper and lower sides, and the two connecting rods (8) are respectively matched with the two connecting grooves (7).

4. The anti-collision structure of a submersible motor according to claim 3, characterized in that: The slider (6) is internally slidably connected to two operating rods (9) both protruding from the surface of the slider (6); the two connecting rods (8) and the opposite sides of the two operating rods (9) are fixedly connected to racks (11); the slider (6) is internally rotatably connected to two first gears (10) and two second gears (13); the two operating rods (9) and the two second gears (13) are distributed up and down; the surface of the operating rod (9) is meshed with the surface of the second gear (13); the surface of the second gear (13) is meshed with the surface of the rack (11) on the operating rod (9); and the surface of the first gear (10) is meshed with the surface of the rack (11) on the connecting rod (8).

5. The anti-collision structure of a submersible motor according to claim 4, characterized in that: The opposite ends of the two connecting rods (8) are fixedly connected with a return spring (12), and the two operating rods (9) are fixedly connected with a return spring (12).

6. The anti-collision structure of a submersible motor according to claim 1, characterized in that: The inner wall of the protective shell (2) is fixedly connected with elastic wire clips (14) arranged at equal distances.

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