A lifting device for replacing a submersible pump

Abstract

The present invention provides a lifting device for replacing a submersible pump, which relates to the technical field of submersible pump lifting devices and comprises a moving mechanism, wherein a lifting mechanism and a driving mechanism are arranged on the moving mechanism, wherein the driving mechanism is drivingly connected to the lifting mechanism, the moving mechanism supports the lifting mechanism and the driving mechanism, and facilitates the lifting mechanism and the driving mechanism to move to the side of a condenser pit, the driving mechanism drives the lifting and lowering of the lifting mechanism to extend the lifting mechanism into the condenser pit, the lifting mechanism carries and lowers a new submersible pump into the condenser pit, the lifting mechanism loads and transports the replaced old submersible pump to the top of the condenser pit for recycling, and the driving mechanism drives the lifting mechanism to rise and extend out of the condenser pit, thereby reducing the manual operation during the replacement of the submersible pump in the condenser pit, improving the safety of the workers, and efficiently completing the replacement or maintenance of the pump body.

Description

Technical Field

[0001] The invention relates to the technical field of submersible pump lifting devices, and in particular to a lifting device for replacing a submersible pump. Background Art

[0002] Submersible pumps are widely used in various pools, wells and underground facilities, and are often used for tasks such as water extraction and sewage discharge. However, submersible pumps may fail or require regular maintenance due to long-term operation during use. The traditional way to replace a submersible pump usually requires manual lifting and disassembly of the pump body from the condenser pit, which is difficult to operate and has great safety hazards, and it is impossible to efficiently complete the replacement or maintenance of the pump body.

[0003] Therefore, in view of the above situation, it is urgent to develop a device for cleaning the sticky coal at the bottom of the coal conveyor belt, so as to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The invention provides a lifting device for replacing a submersible pump, which is used to solve the defects in the prior art.

[0005] The present invention provides a lifting device for replacing a submersible pump, comprising a moving mechanism, wherein a lifting mechanism and a driving mechanism are arranged on the moving mechanism, and the driving mechanism is drivingly connected to the lifting mechanism.

[0006] Preferably, the mobile mechanism includes a bearing seat, four support columns are arranged at the bottom of the bearing seat, the four support columns are respectively inserted in four sleeve columns, a support plate is fixedly arranged between the four sleeve columns, a hydraulic rod is arranged on the support plate, the telescopic end of the hydraulic rod is fixedly connected to the bottom center of the bearing seat, and a steering wheel is arranged at the bottom of the sleeve column.

[0007] Preferably, the lifting mechanism includes a first support frame and a second support frame, the first support frame and the second support frame are fixedly arranged on the top of the bearing seat, the top of the first support frame and the second support frame are provided with placement grooves, the lifting elevator components are placed in the placement grooves of the first support frame and the second support frame, limiting columns are symmetrically arranged in the placement groove of the second support frame, limiting grooves are opened on both sides of the lifting elevator component, and the two limiting columns are inserted in the two limiting grooves.

[0008] The transmission gear of the present invention is a gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a first gear and a second gear selected from the group consisting of a

[0009] Preferably, the driving mechanism includes a swing motor, which is fixedly arranged on the top of the supporting seat, and the rotating end of the swing motor is vertically fixedly connected to one end of the connecting column. A fixed block is fixedly arranged on the bottom of the cross bar, and the fixed block is fixedly connected to the other end of the connecting column.

[0010] Preferably, it also includes:

[0011] Speed ​​detection module 1, used to measure the running speed of the transmission chain of the submersible pump;

[0012] Speed ​​detection module 2 is used to measure the running speed of the submersible pump transmission chain;

[0013] Time detection module 1 is used to measure the time required to lower the submersible pump once;

[0014] Time detection module 2 is used to measure the time required to raise the submersible pump once;

[0015] An angle detection module, used to measure the angle between the ladder frame and the vertical direction;

[0016] A calculation module 1 is used to calculate the actual safe operation coefficient of the transmission chain based on the operating speed of the transmission chain of the submersible pump;

[0017] An alarm module, used for issuing an alarm;

[0018] A processing module, used for comparing the actual safe operation coefficient of the transmission chain obtained by the calculation module 1 with the rated safe operation coefficient of the transmission chain;

[0019] The control module controls the alarm module to sound an alarm when the actual safe operation coefficient of the transmission chain is less than the rated safe operation coefficient of the transmission chain, and controls the elevator assembly to stop working at the same time; when the actual safe operation coefficient of the transmission chain is greater than or equal to the rated safe operation coefficient of the transmission chain, the elevator assembly works normally.

[0020] Preferably, the calculation module 1 calculates based on the following formula 1:

[0021]

[0022] N is the actual safe operation coefficient of the transmission chain, G1 is the weight of the submersible pump, G2 is the weight of the sliding plate, G3 is the weight of the placement plate, G4 is the weight of the first rotating shaft and the first spur gear, f1 is the friction between the transmission chain and the first spur gear, f2 is the friction between the transmission chain and the second spur gear, f3 is the friction between the transmission chain and the third spur gear, S is the length of the transmission chain, τ is the inclination coefficient, θ is the angle between the ladder frame and the vertical direction, D1 is the width of the first spur gear and the third spur gear, D2 is the width of the second spur gear, d1 is the length of the first rotating shaft and the second rotating shaft, d2 is the radius of the first spur gear, the second spur gear and the third spur gear, v1 is the running speed of the submersible pump transmission chain for lowering once, v2 is the running speed of the submersible pump transmission chain for raising once, t1 is the time required to lower a submersible pump, and t2 is the time required to raise a submersible pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are 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.

[0024] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of a top view structure provided by an embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of a vertical cross-sectional structure of a driving cavity provided by an embodiment of the present invention;

[0027] Figure 4 It is a top view of a half-section structure provided by an embodiment of the present invention.

[0028] Reference numerals:

[0029] 1. Moving mechanism; 11. Bearing seat; 12. Support column; 13. Sleeve column; 14. Support plate; 15. Hydraulic rod; 16. Steering wheel; 2. Lifting mechanism; 21. First support frame; 211. Placement slot; 22. Second support frame; 23. Lifting ladder assembly; 231. Ladder frame; 232. Crossbar; 233. Sliding slot; 234. Sliding block; 235. Sliding plate; 236. Placement plate; 237. Driving chamber; 2371. First rotating shaft; 2372. First spur gear; 2373. Motor; 2374. Second spur gear; 2375. Second rotating shaft; 2376. Third spur gear; 2377. Transmission chain; 24. Limiting column; 25. Limiting slot; 3. Driving mechanism; 31. Swinging motor; 32. Connecting column; 33. Fixed block. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] The present invention provides the following embodiments

[0033] Example 1

[0034] The embodiment of the present invention provides a lifting device for replacing a submersible pump, such as Figure 1-Figure 4 As shown, it comprises: a moving mechanism 1 , on which a lifting mechanism 2 and a driving mechanism 3 are arranged, and the driving mechanism 3 is drivingly connected to the lifting mechanism 2 .

[0035] The working principle and beneficial effects of the above technical solution are as follows: the moving mechanism 1 supports the lifting mechanism 2 and the driving mechanism 3, and facilitates the movement of the lifting mechanism 2 and the driving mechanism 3 to the side of the condenser pit; the driving mechanism 3 drives the lifting and lowering of the lifting mechanism 2 to extend the lifting mechanism 2 into the condenser pit; the lifting mechanism 2 carries the new submersible pump and lowers it into the condenser pit; the lifting mechanism 2 loads and transports the replaced old submersible pump to the top of the condenser pit for recycling; the driving mechanism 3 drives the lifting mechanism 2 to rise and extend it out of the condenser pit, thereby reducing the manual operation during the replacement of the submersible pump in the condenser pit, improving the safety of the workers, and efficiently completing the replacement or maintenance of the pump body.

[0036] Example 2

[0037] On the basis of Example 1, Figure 1-Figure 4 As shown, the mobile mechanism 1 includes a bearing seat 11, and four support columns 12 are arranged at the bottom of the bearing seat 11. The four support columns 12 are respectively inserted in four sleeve columns 13, and a support plate 14 is fixedly arranged between the four sleeve columns 13. A hydraulic rod 15 is arranged on the support plate 14, and the telescopic end of the hydraulic rod 15 is fixedly connected to the bottom center of the bearing seat 11. A steering wheel 16 is arranged at the bottom of the sleeve column 13.

[0038] The working principle and beneficial effects of the above technical solution are as follows: the four steering wheels 16 support the four sleeve columns 13 respectively, the four sleeve columns 13 fix the support plate 14 horizontally, the four sleeve columns 13 support and limit the four support columns 12 in the vertical direction, the four support columns 12 support and fix the bearing seat 11, the support plate 14 supports and fixes the hydraulic rod 15, the telescopic end of the hydraulic rod 15 supports the center of the bearing seat 11, the telescopic end of the hydraulic rod 15 drives the bearing seat 11 and the four support columns 12 to rise and fall when telescoping, and the four sleeve columns 13 limit the four support columns 12 and the bearing seat 11 to prevent the bearing seat 11 from being unstable during lifting.

[0039] Example 3

[0040] On the basis of Example 2, Figure 1-Figure 4 As shown, the lifting mechanism 2 includes a first support frame 21 and a second support frame 22, and the first support frame 21 and the second support frame 22 are fixedly arranged on the top of the bearing seat 11, and a placement groove 211 is arranged on the top of the first support frame 21 and the second support frame 22, and a lift assembly 23 is placed in the placement groove 211 of the first support frame 21 and the second support frame 22, and limiting columns 24 are symmetrically arranged in the placement groove 211 of the second support frame 22, and limiting grooves 25 are opened on both sides of the lift assembly 23, and the two limiting columns 24 are inserted in the two limiting grooves 25.

[0041] The working principle and beneficial effects of the above technical scheme are as follows: the bearing seat 11 supports and fixes the first support frame 21 and the second support frame 22, the placement groove 211 opened in the first support frame 21 supports the elevator assembly 23, the placement groove 211 opened in the second support frame 22 supports and limits the rotation of the elevator assembly 23, the inner side of the placement groove 211 opened in the second support frame 22 fixes the two limiting columns 24, the elevator assembly 23 is placed between the two limiting columns 24, one end of the two limiting columns 24 is inserted into the limiting groove 25 opened on the outer wall of the elevator assembly 23, so that the elevator assembly 23 can be rotated and moved under the clamping of the two limiting columns 24, which facilitates the elevator assembly 23 to extend into the condensation pit.

[0042] Example 4

[0043] On the basis of Example 3, Figure 1-Figure 4 As shown, the elevator assembly 23 includes a ladder frame 231, a plurality of cross bars 232 are fixedly arranged at the center of the ladder frame 231, sliding grooves 233 are symmetrically arranged on both sides of the top of the ladder frame 231, and sliding blocks 234 are respectively slidably arranged in the two sliding grooves 233, and a sliding plate 235 is fixedly arranged on the sliding block 234, and a placement plate 236 is fixedly arranged between the two sliding plates 235, and a first rotating shaft 2371 is rotatably arranged on the side of the sliding plate 235 facing outward, and a first spur gear 2372 is arranged on the first rotating shaft 2371, and a driving cavity 237 is opened in one side of the ladder frame 231, and the first rotating shaft 2371 and the first spur gear 2372 extend into the driving cavity 2 37, an avoidance groove for avoiding the first rotating shaft 2371 is arranged on the outer wall of the driving cavity 237 on the side facing the sliding plate 235, a motor 2373 is arranged at the bottom of the ladder frame 231, a second spur gear 2374 is arranged at the driving end of the motor 2373, a second rotating shaft 2375 is fixedly arranged at the other end of the driving cavity 237, a third spur gear 2376 is arranged on the second rotating shaft 2375, the second spur gear 2374 and the third spur gear 2376 are connected by a transmission chain 2377, and the first spur gear 2372 is arranged between the second spur gear 2374 and the third spur gear 2376 and is connected by the transmission chain 2377.

[0044] The working principle and beneficial effects of the above technical solution are as follows: the placement groove 211 opened in the first support frame 21 supports the ladder frame 231, the placement groove 211 opened in the second support frame 22 supports and rotates the ladder frame 231, the ladder frame 231 fixes multiple cross bars 232 therein, and the multiple cross bars 232 facilitate the staff to climb up and down the ladder, one end of the two limiting columns 24 is inserted into the limiting groove 25 opened on the outer wall of the ladder frame 231, and the two sliding grooves 233 opened in the ladder frame 231 respectively slide and limit the two sliding blocks 234, and the sliding blocks 234 support and fix the sliding plates 235 arranged thereon, and the two sliding plates 235 fix the placement plates 236. The empty space formed by the two sliding plates 235 and the placement plates 236 can be used to place a submersible pump, and the outer side of the sliding plate 235 is rotatably set to the first rotating shaft 2371, and the first rotating shaft 2371 fixes and rotates the first spur gear 2372. The first rotating shaft 2371 is limited in rotation by the driving chamber 237, the bottom of the ladder frame 231 fixes the motor 2373, the driving end of the motor 2373 fixes the second spur gear 2374, the inner wall of the driving chamber 237 limits the second rotating shaft 2375, the second rotating shaft 2375 fixes the third spur gear 2376 and rotates synchronously, the motor 2373 drives the second spur gear 2374 and the third spur gear 2376 through the transmission chain 2377. The second spur gear 2374 is transmitted in the driving chamber 237, and the first spur gear 2372 moves along the transmission direction of the transmission chain 2377 with the two sliding plates 235 and the placement plate 236 under the meshing transmission of the transmission chain 2377, thereby completing the transportation of the submersible pump placed on the two sliding plates 235 and the placement plate 236, and the avoidance groove on the outer wall of the driving chamber 237 avoids the moving first rotating shaft 2371.

[0045] Example 5

[0046] On the basis of Example 4, Figure 1-Figure 4 As shown, the driving mechanism 3 includes a swing motor 31, which is fixedly arranged on the top of the supporting seat 11, and the rotating end of the swing motor 31 is vertically fixedly connected to one end of the connecting column 32. A fixing block 33 is fixedly arranged at the bottom of the cross bar 232, and the fixing block 33 is fixedly connected to the other end of the connecting column 32.

[0047] The working principle and beneficial effects of the above technical scheme are as follows: the bearing seat 11 supports and fixes the swing motor 31, the rotating end of the swing motor 31 fixes one end of the connecting column 32, and the other end of the connecting column 32 is fixedly connected to the fixed block 33. When the rotating end of the swing motor 31 rotates, it drives the connecting column 32 to rotate, and the connecting column 32 drives the ladder frame 231 to rotate and slide on the two limiting columns 24 while being limited by the two limiting columns 24, so that the ladder frame 231 is extended into the condensation pit, and then the new submersible pump is placed in the empty space formed by the two sliding plates 235 and the placement plate 236, and the motor 2373 is turned on. The motor 2373 drives the two sliding plates 235 and the placement plate 236 to the intersection of the ladder frame 231 and the bottom of the condensation pit, and the new submersible pump is placed in the bottom of the condensation pit. The old submersible pump is placed in the empty space formed by the two sliding plates 235 and the placement plate 236 and transported back to the outside of the condensation pit to complete the replacement of the submersible pump.

[0048] Example 6

[0049] On the basis of Example 5, the invention further comprises:

[0050] Speed ​​detection module 1, used to measure the running speed of the submersible pump transmission chain 2377;

[0051] Speed ​​detection module 2 is used to measure the running speed of the submersible pump transmission chain 2377;

[0052] Time detection module 1 is used to measure the time required to lower the submersible pump once;

[0053] Time detection module 2 is used to measure the time required to raise the submersible pump once;

[0054] An angle detection module, used to measure the angle between the ladder frame 231 and the vertical direction;

[0055] A calculation module 1 is used to calculate the actual safety operation coefficient of the transmission chain 2377 based on the operating speed of the submersible pump transmission chain 2377;

[0056] An alarm module, used for issuing an alarm;

[0057] A processing module, used for comparing the actual safe operation coefficient of the transmission chain 2377 obtained by the calculation module 1 with the rated safe operation coefficient of the transmission chain 2377;

[0058] The control module controls the alarm module to sound an alarm when the actual safe operation coefficient of the transmission chain 2377 is less than the rated safe operation coefficient of the transmission chain 2377, and controls the elevator assembly 23 to stop working. When the actual safe operation coefficient of the transmission chain 2377 is greater than or equal to the rated safe operation coefficient of the transmission chain 2377, the elevator assembly 23 works normally.

[0059] The working principle and beneficial effects of the above technical solution are as follows: speed detection module 1 measures the running speed of the submersible pump transmission chain 2377 for lowering the submersible pump once, speed detection module 2 measures the running speed of the submersible pump transmission chain 2377 for raising the submersible pump once, time detection module 1 measures the time required for lowering the submersible pump once, time detection module 2 measures the time required for raising the submersible pump once, angle detection module measures the angle between the ladder frame 231 and the vertical direction, calculation module 1 calculates the actual safe operation coefficient of the transmission chain 2377 based on the running speed of the submersible pump transmission chain 2377 for lowering the submersible pump once, alarm module is used to issue an alarm, processing module compares the actual safe operation coefficient of the transmission chain 2377 obtained by calculation module 1 with the rated safe operation coefficient of the transmission chain 2377, when the actual safe operation coefficient of the transmission chain 2377 is less than the rated safe operation coefficient of the transmission chain 2377, control module controls the alarm module to issue an alarm, and at the same time controls the elevator assembly 23 to stop working, when the actual safe operation coefficient of the transmission chain 2377 is greater than or equal to the rated safe operation coefficient of the transmission chain 2377, elevator assembly 23 works normally.

[0060] Example 7

[0061] Based on Example 6, the calculation module 1 calculates based on the following formula 1:

[0062]

[0063] n is the actual safety operation coefficient of the transmission chain 2377, G1 is the weight of the submersible pump, G2 is the weight of the sliding plate 235, G3 is the weight of the placement plate 236, G4 is the weight of the first rotating shaft 2371 and the first spur gear 2372, f1 is the friction force between the transmission chain 2377 and the first spur gear 2372, f2 is the friction force between the transmission chain 2377 and the second spur gear 2374, f3 is the friction force between the transmission chain 2377 and the third spur gear 2376, S is the length of the transmission chain 2377, τ is the inclination coefficient, and θ is the distance between the ladder frame 231 and the vertical direction, D1 is the width of the first spur gear 2372 and the third spur gear 2376, D2 is the width of the second spur gear 2374, d1 is the length of the first rotating shaft 2371 and the second rotating shaft 2375, d2 is the radius of the first spur gear 2372, the second spur gear 2374 and the third spur gear 2376, v1 is the running speed of the submersible pump transmission chain 2377 for lowering the submersible pump once, v2 is the running speed of the submersible pump transmission chain 2377 for raising the submersible pump once, t1 is the time required to lower the submersible pump once, and t2 is the time required to raise the submersible pump once.

[0064] The working principle and beneficial effects of the above technical solution are: The actual safe operation coefficient of the transmission chain is calculated. When the actual safe operation coefficient of the transmission chain 2377 is less than the rated safe operation coefficient of the transmission chain 2377, the control module controls the alarm module to sound an alarm and controls the elevator assembly 23 to stop working. When the actual safe operation coefficient of the transmission chain 2377 is greater than or equal to the rated safe operation coefficient of the transmission chain 2377, the elevator assembly 23 works normally.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lifting device for replacing a submersible pump, characterized in that: include: A moving mechanism (1) is provided with a lifting mechanism (2) and a driving mechanism (3), and the driving mechanism (3) is drivingly connected to the lifting mechanism (2).

2. A lifting device for submersible pump replacement according to claim 1, characterized in that: The mobile mechanism (1) comprises a bearing seat (11), the bottom of which is provided with four support columns (12), the four support columns (12) being respectively inserted into four sleeve columns (13), a support plate (14) being fixedly arranged between the four sleeve columns (13), a hydraulic rod (15) being arranged on the support plate (14), the telescopic end of the hydraulic rod (15) being fixedly connected to the bottom center of the bearing seat (11), and a steering wheel (16) being arranged at the bottom of the sleeve column (13).

3. A lifting device for submersible pump replacement according to claim 2, characterized in that: The lifting mechanism (2) comprises a first support frame (21) and a second support frame (22), wherein the first support frame (21) and the second support frame (22) are fixedly arranged on the top of the bearing seat (11), and a placement groove (211) is arranged on the top of the first support frame (21) and the second support frame (22), and a lift assembly (23) is placed in the placement groove (211) of the first support frame (21) and the second support frame (22), and limiting columns (24) are symmetrically arranged in the placement groove (211) of the second support frame (22), and limiting grooves (25) are arranged on both sides of the lift assembly (23), and two limiting columns (24) are inserted in the two limiting grooves (25).

4. A lifting device for submersible pump replacement according to claim 3, characterized in that: The elevator assembly (23) comprises a ladder frame (231), a plurality of cross bars (232) are fixedly arranged at the center of the ladder frame (231), sliding grooves (233) are symmetrically arranged on both sides of the top of the ladder frame (231), sliding blocks (234) are respectively slidably arranged in the two sliding grooves (233), a sliding plate (235) is fixedly arranged on the sliding block (234), a placing plate (236) is fixedly arranged between the two sliding plates (235), a first rotating shaft (2371) is rotatably arranged on the side of the sliding plate (235) facing outward, a first spur gear (2372) is arranged on the first rotating shaft (2371), a driving cavity (237) is opened in one side of the ladder frame (231), the first rotating shaft (2371) and the first spur gear (2372) extend into the driving cavity (2 37), an avoidance groove for avoiding the first rotating shaft (2371) is arranged on the outer wall of the driving cavity (237) facing the sliding plate (235), a motor (2373) is arranged at the bottom of the ladder frame (231), a second spur gear (2374) is arranged at the driving end of the motor (2373), a second rotating shaft (2375) is fixedly arranged at the other end in the driving cavity (237), a third spur gear (2376) is arranged on the second rotating shaft (2375), the second spur gear (2374) and the third spur gear (2376) are connected by a transmission chain (2377), and the first spur gear (2372) is arranged between the second spur gear (2374) and the third spur gear (2376) and is connected by the transmission chain (2377).

5. A lifting device for submersible pump replacement according to claim 4, characterized in that: The driving mechanism (3) comprises a swing motor (31), the swing motor (31) is fixedly arranged on the top of the bearing seat (11), the rotating end of the swing motor (31) is vertically fixedly connected to one end of a connecting column (32), and a fixing block (33) is fixedly arranged at the bottom of the cross bar (232), and the fixing block (33) is fixedly connected to the other end of the connecting column (32).

6. A lifting device for submersible pump replacement according to claim 5, characterized in that: Also includes: Speed ​​detection module 1, used to measure the running speed of the driving chain (2377) of the submersible pump; Speed ​​detection module 2, used to measure the running speed of the submersible pump transmission chain (2377); Time detection module 1 is used to measure the time required to lower the submersible pump once; Time detection module 2 is used to measure the time required to raise the submersible pump once; An angle detection module, used to measure the angle between the ladder frame (231) and the vertical direction; A calculation module 1, used for calculating the actual safety operation coefficient of the transmission chain (2377) based on the operating speed of the submersible pump transmission chain (2377); An alarm module, used for issuing an alarm; A processing module, used for comparing the actual safe operation coefficient of the transmission chain (2377) obtained by the calculation module 1 with the rated safe operation coefficient of the transmission chain (2377); The control module controls the alarm module to sound an alarm when the actual safe operation coefficient of the transmission chain (2377) is less than the rated safe operation coefficient of the transmission chain (2377), and controls the elevator assembly (23) to stop working; when the actual safe operation coefficient of the transmission chain (2377) is greater than or equal to the rated safe operation coefficient of the transmission chain (2377), the elevator assembly (23) works normally.

7. A lifting device for submersible pump replacement according to claim 6, characterized in that: The calculation module 1 calculates based on the following formula 1: N is the actual safety operation coefficient of the transmission chain (2377), G1 is the weight of the submersible pump, G2 is the weight of the sliding plate (235), G3 is the weight of the placement plate (236), G4 is the weight of the first rotating shaft (2371) and the first spur gear (2372), f1 is the friction force between the transmission chain (2377) and the first spur gear (2372), f2 is the friction force between the transmission chain (2377) and the second spur gear (2374), f3 is the friction force between the transmission chain (2377) and the third spur gear (2376), S is the length of the transmission chain (2377), τ is the inclination coefficient, and θ is the ladder frame (231). The angle with respect to the vertical direction, D1 is the width of the first spur gear (2372) and the third spur gear (2376), D2 is the width of the second spur gear (2374), d1 is the length of the first rotating shaft (2371) and the second rotating shaft (2375), d2 is the radius of the first spur gear (2372), the second spur gear (2374), and the third spur gear (2376), v1 is the operating speed of the submersible pump transmission chain (2377) for lowering once, v2 is the operating speed of the submersible pump transmission chain (2377) for raising once, t1 is the time required to lower the submersible pump once, and t2 is the time required to raise the submersible pump once.

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