Submersible motor shaft straightening system

Abstract

The invention provides a submersible motor shaft straightening system, and relates to the technical field of motor shaft straightening, and the system comprises a support mechanism which is provided with a first sliding rail and a second sliding rail along the length direction; the positioning mechanism comprises a fixed end positioning mechanism and a movable end positioning mechanism, and the fixed end positioning mechanism is arranged on the first sliding rail; the moving end positioning mechanism is arranged on the first sliding rail and can move along the first sliding rail; the at least two groups of movable supporting mechanisms are arranged on the first sliding rail and are positioned between the fixed end positioning mechanism and the movable end positioning mechanism; the straightening mechanism comprises a support and a pressing block assembly arranged on the support, and the support can move along the second sliding rail; the multiple groups of detection mechanisms are arranged along the first sliding track and are used for detecting jumping data of the submersible motor shaft; and the positioning mechanism, the movable supporting mechanism, the straightening mechanism and the detection mechanism are all electrically connected with the control device. According to the invention, the operation efficiency and the straightening precision can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of motor shaft straightening, and in particular to a submersible motor shaft straightening system. Background Art

[0002] Submersible motors are used in the oil and gas industries. They are special motors used for underground oil collection. Their function is to connect with submersible electric pumps to drive the electric pumps to draw oil from below a kilometer to the surface. Since the diameter of general oil wells is small, the outer diameter of the motor is limited, and the capacity can only be increased by increasing the length of the motor. Therefore, submersible motors are made into slender ones.

[0003] Poor straightness of the submersible motor shaft will have an adverse effect on the performance and service life of the submersible motor. First, it may cause increased vibration and noise of the motor and reduce the stability of operation; second, poor straightness may cause problems such as bearing wear and seal failure, thus affecting the overall performance and reliability of the motor. Therefore, it is necessary to detect and adjust the straightness of the motor shaft during the manufacturing process of the submersible motor.

[0004] The existing technology uses manual inspection conditions: after the shaft is placed, do not rush to straighten the shaft. First, turn the shaft by hand to observe the bending and beating of the shaft, determine which type of bending it is, and then straighten the shaft. The shaft adjustment sequence is generally to start from the middle of the shaft, first adjust to the right, then adjust the shaft from the middle to the left, and after basically meeting the requirements, adjust the two ends of the shaft, and finally fine-tune, from one end of the shaft to the other end of the shaft.

[0005] Specifically: First, check the shaft runout and mark each high point with chalk, and record the data of each high point. After the full-length inspection, observe whether the bending points of the shaft to be adjusted are in the same plane. If the bending points are not in the same plane, then make special marks on this point. After the full-length inspection, monitor how many special points there are.

[0006] Secondly, the points with special marks on the straightening shaft need to be straightened to the center. After these points are straightened, start straightening the shaft from the middle to the right to determine the degree of shaft bending. Turn the shaft by hand to determine the highest point of bending, and measure it with a dial indicator. After finding the highest point, place the bearing bracket between two consecutive high points. At the same time, move the clamping device to the high point of the shaft, turn the shaft by hand again, use the dial indicator of the clamping device to determine the exact position of the highest point, and press the clamping device to this point with the raised part facing upwards, and apply different pressures according to the bending of the shaft. Generally, the clamping device should not be released immediately. It is best to maintain pressure for 3-5 minutes. Considering that the shaft itself has rebound, the greater the shaft hardness, the greater the rebound. Generally, the shaft rebound is within the range of 0.05-0.075mm. At this time, do not straighten the shaft all at once. It is best to calibrate the shaft until the required reading is reached and then add (0.05-0.07mm). Repeat the straightening process until all the high points are straightened. During the process of straightening the shaft, the bending of the shaft at the fulcrum should be checked repeatedly. If there is bending, the shaft should be straightened in the same way. The inspection method is: move the bearing support 150mm in the other direction, and then measure the bending at the original support.

[0007] Straightening of both ends of the shaft: The bending of both ends of the shaft must be done after the entire shaft is straightened. First, find the low point of the shaft end and make a mark, then turn the low point upwards, move the bearing support, the first bearing is 75mm away from the end, and the rear bearing is placed 400mm away from the end. The force is applied to the center of the two bearings. Another method can be used to straighten the two ends of the shaft. The concave surface of the shaft can be facing downward, and the support surface with a V-type jack can be used to support the shaft head. The other end can be placed 300mm away from the end face, and pressure is applied at 1 / 2 to repeatedly straighten until the shaft head runout meets the requirements of the drawing.

[0008] Check the entire length of the shaft and check the shaft runout from the other end of the shaft (motor shaft ≤ 0.05mm). If it is not within the drawing requirements, the shaft needs to be re-straightened until the shaft runout meets the drawing requirements and the shaft straightening work is completed.

[0009] This method requires repeated manual inspection and shaft straightening, which is inefficient and labor-intensive. In addition, this method is highly dependent on the workers' experience. The time for each straightening is different, so the pass rate of the straightening is difficult to control, which is not conducive to evaluation and standardized and mass production. Summary of the invention

[0010] The purpose of the present invention is to provide a submersible motor shaft straightening system to solve the problem that the prior art requires manual repeated detection and shaft straightening, which is inefficient and labor-intensive. In addition, this method is very dependent on the workers' experience, and the time for each straightening is different, so the qualified rate of the straightening is difficult to control, which is not conducive to the technical problems of participation in evaluation and standardization and mass production. The many technical effects that can be produced by the preferred technical solution among the many technical solutions provided by the present invention are described in detail below.

[0011] To achieve the above object, the present invention provides the following technical solutions:

[0012] The present invention provides a submersible motor shaft straightening system, comprising:

[0013] A support mechanism, wherein the support mechanism is provided with a first sliding track and a second sliding track along a length direction;

[0014] The positioning mechanism comprises a fixed end positioning mechanism and a movable end positioning mechanism, wherein the fixed end positioning mechanism is arranged on the first sliding track and is used to support one end of the submersible motor shaft; the movable end positioning mechanism is arranged on the first sliding track and is movable along the first sliding track and is used to support the other end of the submersible motor shaft;

[0015] At least two groups of mobile support mechanisms are arranged on the first sliding track and located between the fixed end positioning mechanism and the mobile end positioning mechanism, and the mobile support mechanisms can move along the first sliding track;

[0016] A straightening mechanism, comprising a bracket and a pressing block assembly disposed on the bracket, wherein the bracket is movable along the second sliding track;

[0017] A plurality of detection mechanisms are arranged along the first sliding track and are used to detect the vibration data of the submersible motor shaft;

[0018] The control device, the positioning mechanism, the mobile support mechanism, the straightening mechanism, and the detection mechanism are all electrically connected to the control device.

[0019] Preferably, the fixed end positioning mechanism and the mobile end positioning mechanism both include:

[0020] A supporting unit, comprising a first power device and a supporting frame for supporting the submersible motor shaft, wherein the first power device can drive the supporting frame to rise and fall;

[0021] A rotating assembly is arranged at one side of the supporting unit, and comprises a second power device and a rotating structure, wherein the second power device can drive the rotating structure to rotate, and is used to drive the submersible motor shaft to rotate;

[0022] The first power device and the second power device are both electrically connected to the control device.

[0023] Preferably, a groove structure for accommodating the submersible motor shaft is provided at the top center of the support frame.

[0024] Preferably, the rotating structure comprises at least a first roller, a second roller and a third roller, wherein:

[0025] The axes of the first roller and the second roller are arranged parallel to each other, and the first roller and the second roller form a lower roller assembly;

[0026] The third roller is connected to the second power device, and the third roller is located at the top center of the lower roller assembly.

[0027] Preferably, the pressing block assembly comprises a third power device and a pressing block body, wherein:

[0028] An arc-shaped groove is provided at the bottom center of the pressing block body;

[0029] The third power device is used to drive the pressing block body to rise and fall, and the third power device is electrically connected to the control device.

[0030] Preferably, the pressing block assembly further comprises a distance measuring sensor, and the distance measuring sensor is arranged on the pressing block body.

[0031] Preferably, the detection mechanism comprises:

[0032] A support, mounted on one side of the first sliding track;

[0033] A detection rod, one end of which is movably connected to the support, and the other end of which extends toward a side close to the first sliding track;

[0034] The telescopic structure has one end connected to the support and the other end connected to the detection rod.

[0035] Preferably, a toothed structure is provided on the end surface of the first sliding track, and the mobile end positioning mechanism and the mobile support mechanism both include gears for cooperating with the toothed structure.

[0036] Preferably, a groove for accommodating the submersible motor shaft is provided on the top of the movable support mechanism.

[0037] Preferably, the length interval between two adjacent detection mechanisms is not less than the length dimension of the movable support mechanism.

[0038] The submersible motor shaft straightening system provided by the present invention comprises a supporting mechanism, a positioning mechanism, a mobile supporting mechanism, a straightening mechanism, a detection mechanism and a control device. The supporting mechanism is provided with a first sliding track and a second sliding track along the length direction. The positioning mechanism comprises a fixed end positioning mechanism and a mobile end positioning mechanism. The fixed end positioning mechanism is provided on the first sliding track and is used to support one end of the submersible motor shaft. The mobile end positioning mechanism is provided on the first sliding track and can move along the first sliding track and is used to support the other end of the submersible motor shaft. Both groups of mobile supporting mechanisms are provided on the first sliding track and are located between the fixed end positioning mechanism and the mobile end positioning mechanism. When the middle part of the submersible motor shaft needs to be straightened, the two groups of mobile supporting mechanisms are respectively moved to the two sides of the submersible motor shaft section that needs to be straightened, so that the submersible motor shaft section that needs to be straightened can be effectively supported, and then the straightening mechanism can be smoothly operated. The straightening mechanism comprises a bracket and a pressing block assembly provided on the bracket. The bracket can move along the second sliding track. When the bracket moves along the second sliding track, the pressing block assembly is driven to move. The pressing block assembly is used to press and straighten the submersible motor shaft. Multiple detection mechanisms are arranged along the first sliding track to detect the runout data of the submersible motor shaft. The positioning mechanism, mobile support mechanism, straightening mechanism, and detection mechanism are all electrically connected to the control device, and the control device is used to realize intelligent control of the positioning mechanism, mobile support mechanism, straightening mechanism, and detection mechanism, which can realize unmanned operation, improve operation efficiency, and improve product straightening accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 It is a structural schematic diagram of an embodiment of a submersible motor shaft straightening system of the present invention;

[0041] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0042] Figure 3 It is a structural schematic diagram of the mobile support mechanism in the submersible motor shaft straightening system of the present invention;

[0043] Figure 4 yes Figure 3 A schematic diagram of the structure when the mobile support mechanism is used to support the shaft of the submersible motor;

[0044] Figure 5This is a control principle diagram of the submersible motor shaft straightening system of the present invention;

[0045] Figure 6 yes Figure 1 Schematic diagram of the enlarged structure at point B in the middle.

[0046] In the figure: 1, support mechanism; 11, first sliding track; 12, second sliding track;

[0047] 2. Positioning mechanism; 21. Fixed end positioning mechanism; 22. Mobile end positioning mechanism; 211. Supporting unit; 2110. Groove structure; 2111. First power device; 2112. Supporting frame; 212. Rotating assembly; 2121. Second power device; 2122. Rotating structure; 21221. First roller; 21222. Second roller; 21223. Third roller;

[0048] 3. Mobile support mechanism; 30. Groove;

[0049] 4. Straightening mechanism; 41. Bracket; 42. Pressing block assembly; 421. Third power device; 422. Pressing block body; 4220. Arc groove; 423. Distance sensor;

[0050] 5. Detection mechanism; 51. Support; 52. Detection rod; 53. Telescopic structure;

[0051] 6. Control device; 7. Submersible motor shaft. DETAILED DESCRIPTION

[0052] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0053] In the description of the present invention, it is to be understood that the terms “center”, “lateral”, “length”, “width”, “height”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “side”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0054] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0055] Figure 1 Schematic diagram of the structure of this embodiment. Figure 1 As shown, the present invention provides a submersible motor shaft straightening system, comprising a support mechanism 1, a positioning mechanism 2, a mobile support mechanism 3, a straightening mechanism 4, a detection mechanism 5 and a control device 6.

[0056] in, Figure 2 yes Figure 1 The enlarged structural diagram at A in the figure is as follows: Figure 2 As shown, the support mechanism 1 is provided with a first sliding track 11 and a second sliding track 12 along the length direction, wherein the first sliding track 11 is used for the mobile support mechanism 3 and the positioning mechanism 2 to slide thereon, so that the submersible motor shaft straightening system is suitable for the straightening of submersible motor shafts of different lengths, and by setting the mobile support mechanism 3 to move along the first sliding track 11, the same submersible motor shaft can be straightened at different positions, which is highly practical and has a wide range of uses. The second sliding track 12 is mainly used for the straightening mechanism 4 to move thereon, and the straightening mechanism 4 can be moved to an appropriate position according to the use requirements, and the position on the submersible motor shaft that needs to be straightened can be straightened.

[0057] The positioning mechanism 2 in this embodiment includes a fixed-end positioning mechanism 21 and a movable-end positioning mechanism 22. The fixed-end positioning mechanism 21 is arranged on the first sliding rail 11 and is used to support one end of the submersible motor shaft 7; the movable-end positioning mechanism 22 is arranged on the first sliding rail 11 and can move along the first sliding rail 11 and is used to support the other end of the submersible motor shaft 7.

[0058] Figure 3 is a schematic structural diagram of the mobile support mechanism in this embodiment, Figure 4 yes Figure 3 The structural diagram of the mobile support mechanism used to support the shaft of the submersible motor is as follows: Figure 3 and Figure 4As shown, the submersible motor shaft straightening system has at least two groups of mobile support mechanisms 3, both of which are arranged on the first sliding track 11, between the fixed end positioning mechanism 21 and the mobile end positioning mechanism 22, and the mobile support mechanism 3 can move along the first sliding track 11. In this embodiment, a groove 30 for accommodating the submersible motor shaft 7 is arranged on the top of the mobile support mechanism 3. Since the submersible motor shaft 7 is relatively long, when the middle part of the submersible motor shaft 7 needs to be straightened, the two groups of mobile support mechanisms 3 are respectively moved to the two sides of the section on the submersible motor shaft 7 that needs to be straightened, so that the section on the submersible motor shaft 7 that needs to be straightened can be effectively supported, and then the straightening mechanism 4 can be smoothly operated.

[0059] The straightening mechanism 4 in this embodiment includes a bracket 41 and a pressure block assembly 42 arranged on the bracket 41. The bracket 41 can move along the second sliding track 12. When the bracket 41 moves along the second sliding track 12, it drives the pressure block assembly 42 to move. The pressure block assembly 42 is used to apply pressure to the submersible motor shaft 7 for straightening.

[0060] The submersible motor shaft straightening system in this embodiment includes a plurality of detection mechanisms 5 , which are arranged along the first sliding track 11 and are used to detect the runout data of the submersible motor shaft 7 .

[0061] Figure 5 It is the control principle diagram of this embodiment, such as Figure 5 As shown, the positioning mechanism 2, the mobile supporting mechanism 3, the straightening mechanism 4, and the detecting mechanism 5 are all electrically connected to the control device 6. The control device 6 is used to realize intelligent control of the positioning mechanism 2, the mobile supporting mechanism 3, the straightening mechanism 4, and the detecting mechanism 5, thereby realizing unmanned operation, improving operation efficiency, and improving product straightening accuracy.

[0062] As an optional implementation, Figure 6 yes Figure 1 The enlarged structural diagram at B is as follows: Figure 6 As shown, the fixed end positioning mechanism 21 and the movable end positioning mechanism 22 both include a supporting unit 211 and a rotating assembly 212 .

[0063] The supporting unit 211 includes a first power device 2111 and a supporting frame 2112 for supporting the submersible motor shaft 7. The first power device 2111 can drive the supporting frame 2112 to rise and fall. Specifically, in this embodiment, a groove structure 2110 for accommodating the submersible motor shaft 7 is provided at the top center of the supporting frame 2112. Preferably, the groove structure 2110 is an arc groove to prevent the tip from damaging the submersible motor shaft 7. When in use, the submersible motor shaft 7 can be lifted to an appropriate height by the first power device 2111 in cooperation with the supporting frame 2112.

[0064] The rotating assembly 212 is disposed on one side of the supporting unit 211 , and includes a second power device 2121 and a rotating structure 2122 . The second power device 2121 can drive the rotating structure 2122 to rotate, so as to drive the submersible motor shaft 7 to rotate.

[0065] Specifically, the rotating structure 2122 in this embodiment includes at least a first roller 21221, a second roller 21222 and a third roller 21223. The axes of the first roller 21221 and the second roller 21222 are arranged parallel to each other, and the first roller 21221 and the second roller 21222 form a lower roller assembly. The third roller 21223 is connected to the second power device 2121, and the third roller 21223 is located at the top center of the lower roller assembly.

[0066] In this embodiment, the first power device 2111 and the second power device 2121 are both electrically connected to the control device 6, wherein the first power device 2111 uses a cylinder and the second power device 2121 uses a motor. When in use, the shaft keyway is used as a starting point, the third roller 21223 is driven to rotate by the motor, and the submersible motor shaft 7 is driven by friction, and then the shaft runout is detected by the detection mechanism. After collecting the runout data, the detection mechanism 5 is retracted, and the submersible motor shaft 7 is straightened by the straightening mechanism 4.

[0067] As an optional embodiment, the pressing block assembly 42 includes a third power device 421 and a pressing block body 422. An arc groove 4220 is provided at the bottom center of the pressing block body 422; the third power device 421 is used to drive the pressing block body 422 to rise and fall. In this embodiment, the third power device 421 adopts a cylinder, and the third power device 421 is electrically connected to the control device 6.

[0068] Specifically, the pressing block assembly 42 in this embodiment also includes a distance sensor 423, and the distance sensor 423 is arranged on the pressing block body 422. By arranging the distance sensor 423 on the pressing block assembly 42, when in use, before the straightening measurement, the third power device 421 is lowered to a certain height, driving the pressing block body 422 and the distance sensor 423 to descend until the pressing block body 422 contacts the submersible motor shaft 7, at which time the submersible motor shaft 7 rotates one circle through the action of the rotating assembly 212, and the keyway position is confirmed according to the collected data, and the data at this position is shielded during the subsequent measurement of the shaft body runout of the submersible motor shaft 7.

[0069] As an optional implementation, the detection mechanism 5 includes a support 51 , a detection rod 52 and a telescopic structure 53 .

[0070] Among them, the support 51 is installed on one side of the first sliding rail 11; one end of the detection rod 52 is movably connected to the support 51, and the other end extends toward the side close to the first sliding rail 11; one end of the telescopic structure 53 is connected to the support 51, and the other end is connected to the detection rod 52.

[0071] Specifically, in this embodiment, the length spacing between two adjacent detection mechanisms 5 is set to be no less than the length dimension of the mobile support mechanism 3, so that when the detection mechanism 5 performs detection, the mobile support mechanism 3 can avoid it to prevent the detection rod 52 of the detection mechanism 5 from interfering with the mobile support mechanism 3 when it is extended.

[0072] The usage of this embodiment is as follows: the straightening sequence starts from the middle of the submersible motor shaft 7, adjusts to the right, and then adjusts from the middle to the left. The straightening method is as follows: two sets of mobile support mechanisms 3 move to the left and right sides of the straightening point to support the submersible motor shaft 7, the straightening mechanism 4 moves to the top of the straightening point, and the third power device 421 presses down to straighten the submersible motor shaft 7. If the runout at the shaft head is unqualified during the runout detection of the detection mechanism 5, the mobile support mechanism 3 moves to 500mm from the shaft end, the straightening mechanism 4 moves to 250mm from the shaft head, and the third power device 421 presses down to straighten the submersible motor shaft 7.

[0073] As an optional implementation, a toothed structure is provided on the end surface of the first sliding rail 11 in this embodiment, and the mobile end positioning mechanism 22 and the mobile support mechanism 3 both include gears for cooperating with the toothed structure.

[0074] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A submersible motor shaft straightening system, characterized in that: include: A support mechanism, wherein the support mechanism is provided with a first sliding track and a second sliding track along a length direction; The positioning mechanism comprises a fixed end positioning mechanism and a movable end positioning mechanism, wherein the fixed end positioning mechanism is arranged on the first sliding track and is used to support one end of the submersible motor shaft; the movable end positioning mechanism is arranged on the first sliding track and is movable along the first sliding track and is used to support the other end of the submersible motor shaft; At least two groups of mobile support mechanisms are arranged on the first sliding track and located between the fixed end positioning mechanism and the mobile end positioning mechanism, and the mobile support mechanisms can move along the first sliding track; A straightening mechanism, comprising a bracket and a pressing block assembly disposed on the bracket, wherein the bracket is movable along the second sliding track; A plurality of detection mechanisms are arranged along the first sliding track and are used to detect the vibration data of the submersible motor shaft; The control device, the positioning mechanism, the mobile support mechanism, the straightening mechanism, and the detection mechanism are all electrically connected to the control device.

2. The submersible motor shaft straightening system according to claim 1, characterized in that: The fixed end positioning mechanism and the mobile end positioning mechanism both include: A supporting unit, comprising a first power device and a supporting frame for supporting the submersible motor shaft, wherein the first power device can drive the supporting frame to rise and fall; A rotating assembly is arranged at one side of the supporting unit, and comprises a second power device and a rotating structure, wherein the second power device can drive the rotating structure to rotate, and is used to drive the submersible motor shaft to rotate; The first power device and the second power device are both electrically connected to the control device.

3. The submersible motor shaft straightening system according to claim 2, characterized in that: A groove structure for accommodating the submersible motor shaft is arranged at the top center of the support frame.

4. The submersible motor shaft straightening system according to claim 3, characterized in that: The rotating structure at least comprises a first roller, a second roller and a third roller, wherein: The axes of the first roller and the second roller are arranged parallel to each other, and the first roller and the second roller form a lower roller assembly; The third roller is connected to the second power device, and the third roller is located at the top center of the lower roller assembly.

5. The submersible motor shaft straightening system according to any one of claims 1 to 4, characterized in that: The pressing block assembly comprises a third power device and a pressing block body, wherein: An arc-shaped groove is provided at the bottom center of the pressing block body; The third power device is used to drive the pressing block body to rise and fall, and the third power device is electrically connected to the control device.

6. The submersible motor shaft straightening system according to claim 5, characterized in that: The pressing block assembly further comprises a distance measuring sensor, and the distance measuring sensor is arranged on the pressing block body.

7. The submersible motor shaft straightening system according to any one of claims 1 to 4, characterized in that: The detection mechanism includes: A support, mounted on one side of the first sliding track; A detection rod, one end of which is movably connected to the support, and the other end of which extends toward a side close to the first sliding track; The telescopic structure has one end connected to the support and the other end connected to the detection rod.

8. The submersible motor shaft straightening system according to any one of claims 1 to 4, characterized in that: The end surface of the first sliding track is provided with a toothed structure, and the mobile end positioning mechanism and the mobile support mechanism both include gears for cooperating with the toothed structure.

9. The submersible motor shaft straightening system according to any one of claims 1 to 4, characterized in that: The top of the movable support mechanism is provided with a groove for accommodating the shaft of the submersible motor.

10. The submersible motor shaft straightening system according to any one of claims 1 to 4, characterized in that: The length distance between two adjacent detection mechanisms is not less than the length dimension of the movable support mechanism.

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