Lifting device for overhauling large equipment

Abstract

The invention relates to the technical field of lifting devices for overhaul, and discloses a lifting device for large equipment overhaul, which comprises a moving vehicle, a lifting frame arranged on the moving vehicle, a lifting plate arranged on the lifting frame, a locking part arranged on the lifting plate, an adjusting plate arranged on the lifting plate, and a cleaning part arranged on the adjusting plate, a limiting component arranged on an adjusting plate is in contact with the hood through a contact plate, so that a moving rod drives two limiting plates to limit the two sides of the hood, and when the hood is separated from large equipment and lifted by a crane, the hood cannot be affected by wind power and cannot shake or deflect due to the unstable center of the hood; therefore, damage to the large equipment and the hood due to the fact that the hoisted hood collides with the large equipment during rotation is avoided, the stability of the hood is improved, the installation difficulty during reinstallation of the hood and the large equipment is reduced, and the operation efficiency of maintainers is improved.

Description

Technical Field

[0001] The invention relates to the technical field of lifting devices for maintenance, in particular to a lifting device for maintenance of large equipment. Background Art

[0002] As an important part of the power system, thermal power plants need stable and large-scale power output to meet the power needs of industry, commerce and residents. Large motors have higher power output capacity and can ensure stable and reliable power supply of thermal power plants.

[0003] Since large motors operate in the complex environment of thermal power plants, they will be damaged by dust, moisture, and corrosive gases in the environment of thermal power plants. By installing a cover on the power generation equipment equipped with large motors, the influence of external environmental factors on large motors can be effectively isolated;

[0004] Due to the actual use needs, large motors are installed in the upper part of the power generation equipment. When the large motor needs to be repaired, due to the large mass of the hood, the maintenance personnel are required to cooperate with the crane to first remove the hood on the power generation equipment, and then repair the large motor. However, in the process of reinstalling the hood on the power generation equipment, the hood of the crane is affected by the wind and its own unstable center of gravity, which will cause shaking, thereby increasing the difficulty of installing the hood. Summary of the invention

[0005] The purpose of the present invention is to provide a lifting device for large-scale equipment maintenance to solve the problems mentioned in the above process.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lifting device for overhauling large equipment, comprising a mobile vehicle, a lifting frame arranged on the mobile vehicle, a lifting plate arranged on the lifting frame, a locking component arranged on the lifting plate, an adjustment plate arranged on the lifting plate, a cleaning component arranged on the adjustment plate, and a limiting component arranged on the adjustment plate, wherein the limiting component is used to limit the position of a hood, and after the limiting component limits the position of the hood, the cleaning component can drive the cleaning component to clean the surface of the connection position between the large equipment and the hood;

[0007] The limiting component includes a moving plate, a slider symmetrically arranged on the moving plate, a moving rod arranged on the moving plate, a contact plate arranged on the moving rod, a connecting block arranged on the moving rod, a connecting rod symmetrically arranged on the connecting block, a limiting plate symmetrically arranged on the moving plate, and a fixing component arranged on the moving plate, wherein the fixing component is used to limit the moving rod.

[0008] As a preferred solution of the lifting device for maintenance of large equipment described in the present invention, the fixed component includes a base plate, moving blocks arranged in an array on the base plate, and movable sheets arranged on the moving blocks.

[0009] As a preferred solution of the lifting device for maintenance of large equipment described in the present invention, wherein: a control cylinder is arranged on the movable plate, a guide plate is arranged on the control cylinder, and a guide disk is arranged on the guide plate.

[0010] As a preferred solution of the lifting device for large equipment maintenance described in the present invention, the cleaning component includes a driving assembly, a mounting plate arranged on the adjusting plate, an air cylinder arranged on the mounting plate, and a piston plate arranged in the air cylinder.

[0011] As a preferred solution of the lifting device for large equipment maintenance described in the present invention, the driving assembly includes a moving ring, buckles symmetrically arranged on the moving ring, and a push rod arranged in the moving rod.

[0012] As a preferred solution of the lifting device for large equipment maintenance described in the present invention, it includes: a slider 2 arranged on the adjustment plate, an interactive component arranged on the adjustment plate, a cleaning plate arranged on the slider 2, and a telescopic plate arranged on the cleaning plate.

[0013] As a preferred solution of the lifting device for maintenance of large equipment described in the present invention, it comprises: a rodless cylinder arranged on the telescopic plate, a collecting box arranged on the rodless cylinder, and a scraper arranged on the collecting box.

[0014] As a preferred solution of the lifting device for maintenance of large equipment described in the present invention, wherein: a control panel is arranged in the cleaning panel, a side panel is arranged on the control panel, and a lever is arranged in the side panel.

[0015] As a preferred solution of the lifting device for maintenance of large equipment described in the present invention, the locking component includes a minor arc ring, a locking tongue symmetrically arranged on the minor arc ring, and a locking tooth arranged on the lifting plate.

[0016] As a preferred solution of the lifting device for maintenance of large equipment described in the present invention, it comprises: a minor arc plate arranged on the minor arc ring, a pressure plate symmetrically arranged on the minor arc plate, a handle arranged on the minor arc plate, and a locking cylinder arranged on the minor arc ring.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The contact plate contacts the hood, so that the moving rod drives the two limit plates to limit the two sides of the hood, so that when the hood is separated from the large equipment and lifted by the crane, the hood will not be affected by the wind and the shaking and deflection caused by the instability of its own center, thereby preventing the lifted hood from hitting the large equipment when rotating, causing damage to the large equipment and the hood, improving the stability of the hood, reducing the difficulty of reinstalling the hood and the large equipment, and improving the work efficiency of the maintenance personnel;

[0019] 2. The moving rod drives the connecting rod, so that the two limit plates limit the hood, so that the connecting rod drives the moving ring to gradually move away from the moving plate, causing the push rod in the moving rod to extend out of the top groove, and then when the moving plate is away from the large equipment and the scraper is attached to the surface of the large equipment, the push rod pushes the piston plate, so that the gas in the cylinder passes into the rodless cylinder through the air guide pipe, causing the movable block to drive the scraper to scrape the dust on the surface of the large equipment, avoiding the gap between the hood and the large equipment due to the deviation of the hood position when reinstalling the hood, causing external dust to pass through the gap into the large equipment, resulting in an increase in the failure rate of the large equipment;

[0020] 3. By setting up a collection box, the dust scraped off from the surface of large equipment by the scraper is collected in the collection box to prevent the dust from falling from a high place and polluting the surrounding environment;

[0021] 4. The adjusting plate is rotated and installed on the lifting plate. The rotation of the adjusting plate is used to make the limit plate fit better with the surface of the hood, thereby improving the limiting effect of the limit plate on the hood. At the same time, a lock tongue and a lock tooth are set to reduce the rotation speed of the adjusting plate, improve the stability of the adjusting plate during rotation, and ensure the safety of the operators. At the same time, the adjusting plate is fixed on the lifting plate by turning the handle, thereby avoiding the need to adjust the connection angle between the hood and the large equipment when reinstalling the hood, improving the convenience of hood installation, and improving the maintenance efficiency of large equipment by maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the lifting device for large-scale equipment maintenance of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the lifting plate and the adjusting plate of the lifting device for overhauling large equipment of the present invention.

[0024] Figure 3 It is a structural schematic diagram of the driving assembly and the limiting component of the lifting device for large-scale equipment maintenance of the present invention.

[0025] Figure 4 This is a schematic structural diagram of the front view of the lifting device for large-scale equipment maintenance of the present invention.

[0026] Figure 5 It is a structural schematic diagram of the fixing assembly and the moving rod of the lifting device for overhauling large equipment of the present invention.

[0027] Figure 6 It is a schematic structural diagram of the explosion of the fixing assembly of the lifting device for overhauling large equipment of the present invention.

[0028] Figure 7 It is a schematic structural diagram of the cleaning components of the lifting device for overhauling large equipment of the present invention.

[0029] Figure 8 The invention is a lifting device for large equipment maintenance Figure 7 Schematic diagram of the structure enlarged at point A in the middle.

[0030] Fig. 9 The present invention is a schematic structural diagram of a control panel, a side panel and a lever of a lifting device for overhauling large equipment.

[0031] Fig.10 The invention is a lifting device for large equipment maintenance Fig. 9 Schematic diagram of the enlarged structure at point B.

[0032] Fig.11 It is a structural schematic diagram of the locking cylinder and handle of the lifting device for overhauling large equipment of the present invention.

[0033] Fig.12 It is a structural schematic diagram of the lock tongue and lock teeth of the lifting device for overhauling large equipment of the present invention.

[0034] In the figure:

[0035] 1. Mobile vehicle; 11. Lifting frame; 12. Lifting plate; 13. Adjusting plate; 14. Locking teeth;

[0036] 2. Locking parts; 21. Minor arc ring; 22. Lock tongue; 23. Minor arc plate; 24. Pressing plate; 25. Handle; 26. Locking cylinder;

[0037] 3. Cleaning components; 31. Driving assembly; 311. Moving ring; 312. Buckle; 313. Ejector rod; 32. Mounting plate; 33. Air cylinder; 34. Piston plate; 35. Slider 2; 36. Interactive assembly; 37. Cleaning plate; 371. Telescopic plate; 372. Control panel; 373. Side panel; 374. Push rod; 38. Rodless cylinder; 39. Collecting box; 391. Scraper;

[0038] 4. Limiting component; 41. Moving plate; 42. Sliding block 1; 43. Moving rod; 44. Contact plate; 45. Connecting block; 46. Connecting rod; 47. Limiting plate;

[0039] 5. Fixed assembly; 51. Base plate; 52. Moving block; 53. Movable sheet; 54. Control cylinder; 55. Guide plate; 56. Guide disk. DETAILED DESCRIPTION

[0040] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is by no means limited to any specific configuration and algorithm proposed below, but covers any modification, replacement and improvement of elements, parts and algorithms without departing from the spirit of the present invention. In the accompanying drawings and the following description, known structures and technologies are not shown to avoid unnecessary ambiguity to the present invention.

[0041] Example 1

[0042] Reference Figure 1-6 , which is the first embodiment of the present invention, provides a lifting device for overhauling large equipment, the lifting device for overhauling large equipment comprises a mobile vehicle 1, the mobile vehicle 1 is symmetrically provided with a fixed plate, the fixed plate is symmetrically provided with telescopic legs, a lifting frame 11 arranged on the mobile vehicle 1, and a hydraulic rod 1 is arranged on the lifting frame 11. When the mobile vehicle 1 moves to an appropriate position, the hydraulic rod 1 is started to gradually expand the lifting frame 11 under the pushing of the hydraulic rod 1, and a lifting plate 12 arranged on the lifting frame 11 is provided. After the lifting frame 11 is expanded, the lifting plate 12 is lifted to the working height, a locking component 2 is arranged on the lifting plate 12, an adjusting plate 13 is arranged on the lifting plate 12, an adjusting slot is provided on the lifting plate 12, and the adjusting plate 13 is rotatably installed in the adjusting slot, a cleaning component 3 is arranged on the adjusting plate 13, and a limiting component 4 is arranged on the adjusting plate 13, the limiting component 4 is used to limit the hood, and the limiting component 4 can drive the cleaning component 3 to clean the surface of the connection position between the large equipment and the hood after limiting the hood;

[0043] The limiting component 4 includes a moving plate 41, a slider 42 symmetrically arranged on the moving plate 41, a moving rod 43 arranged on the moving plate 41, and a contact plate 44 arranged on the moving rod 43. A sliding groove 1 is symmetrically opened on the adjusting plate 13, and the slider 42 is slidably installed in the sliding groove 1. The moving plate 41 is slidably installed on the slider 42. A guide rod is fixedly installed on the slider 42. The guide rod is slidably connected to the moving plate 41, and a spring 2 is sleeved on the outer side of the guide rod. The moving rod 43 is slidably inserted in the middle area of ​​the moving plate 41. The contact plate 44 is fixedly installed at one end of the moving rod 43. A spring 1 is sleeved on the outer side of the moving rod 43. The spring 1 is located between the contact plate 44 and the moving plate 41. Two hydraulic rods are symmetrically hingedly arranged on the adjusting plate 13, and one end of the hydraulic rod 2 is hingedly cooperated with the moving plate 41 away from the adjusting plate 13. A connecting block 45 is arranged on the moving rod 43, and a connecting rod 46 is symmetrically arranged on the connecting block 45. The connecting block 45 is fixedly installed on one end of the moving rod 43 and contacts one end of the plate 44, and the connecting rod 46 is hingedly cooperated with the connecting block 45. A limiting plate 47 is symmetrically arranged on the moving plate 41. Two sliding grooves are symmetrically opened on the moving plate 41, and the limiting plate 47 is slidably installed in the sliding grooves. One end of the connecting rod 46 away from the connecting block 45 is hingedly cooperated with the limiting plate 47. A fixing component 5 is arranged on the moving plate 41, and the fixing component 5 is used to limit the moving rod 43.

[0044] The fixed component 5 includes a substrate 51, a moving block 52 arranged in an array on the substrate 51, and a movable sheet 53 arranged on the moving block 52. A pair of linear rails 1 are arranged in an array on one side of the substrate 51. The moving block 52 is slidably arranged on the linear rail 1. The movable sheet 53 is hinged to the moving block 52, and the hinge between the movable sheet 53 and the moving block 52 is arranged on a torsion spring. Under the action of the torsion spring, the movable sheet 53 is always in a relatively parallel position relationship with the moving block 52.

[0045] A control cylinder 54 is arranged on the moving plate 41, a guide plate 55 is arranged on the control cylinder 54, and a guide disk 56 is arranged on the guide plate 55. The guide plate 55 is fixedly connected to the base plate 51. The guide disk 56, the moving block 52, and the movable sheet 53 are all arranged between the guide plate 55 and the base plate 51. The control cylinder 54 is arranged on a side of the moving plate 41 away from the contact plate 44, and the control cylinder 54 is rotatably connected to the moving plate 41. A guide groove 1 is arranged in an array on the guide plate 55, and a guide rod is arranged in an array on the end of the control cylinder 54 away from the moving plate 41. A guide groove 2 is arranged in an array on the guide disk 56. The guide rod penetrates the guide groove 1 and is fixedly connected to the guide disk 56. A moving shaft is fixedly installed on the moving block 52, and the moving shaft is slidably arranged in the guide groove 2. By rotating the control cylinder 54, the guide disk 56 rotates and the multiple moving blocks 52 approach or avoid each other. A card slot is arranged in an array on the outer wall of the moving rod 43.

[0046] During use, the mobile vehicle 1 is first moved to the large equipment to be repaired, and is located at the lower end of the hood of the large equipment, and then the telescopic legs are driven to extend. At this time, the mobile vehicle 1 is fixed, and then the maintenance personnel stand on the lifting platform 12 and start the hydraulic rod 1. At this time, the lifting frame 11 will be extended under the push of the hydraulic rod, so that the lifting platform 12 and the maintenance personnel standing on the lifting platform 12 are lifted by the lifting platform 12 to a suitable maintenance height;

[0047] Then start the hydraulic rod 2, and push the moving plate 41 through the hydraulic rod 2, so that the moving plate 41 gradually moves toward the direction of the hood on the large equipment. When the contact plate 44 contacts the surface of the hood, as the moving plate 41 moves, the moving rod 43 will slide in the direction away from the contact plate 44, and the spring 1 will be deformed and compressed. At this time, the connecting rod 46 will pull the two limit plates 47 to gradually drive each other, so that the two limit plates 47 will eventually fit with the side walls of the hood. At this time, the two limit plates 47 will limit the hood, and then the hood will be tied up with a rope, and then the rope will be hooked with a crane. At this time, the maintenance personnel can unscrew the bolts used to connect the hood and the large equipment. When the bolts used to connect the hood and the large equipment are removed, the crane bears the downward gravity of the hood itself.

[0048] When the movable plate 41 and the hood are gradually moved away from the large equipment by controlling the hydraulic rod 2, the two limit plates 47 will be reset due to the rebound force of the spring 1 in the compressed state, resulting in the two limit plates 47 being unable to limit the hood. Therefore, when the movable rod 43 moves in the direction away from the contact plate 44, the movement of the movable rod 43 will push the movable piece 53, and the torsion spring will be deformed. Then, when the movable piece 53 is in the slot, the movable piece 53 will be reset and stuck in the slot under the action of the torsion spring. When the movable plate 41 is carried by the hood and gradually moves away from the large equipment, the movable piece 53 will be stuck in the slot, and the guide plate 56 limits the movable piece 53, so that the movable rod 43 cannot be reset under the rebound force of the spring 1, causing the two limit plates 47 to limit the hood and carry and when the hood is gradually away from the large equipment, the two limit plates 47 always limit the hood, and at this time, the maintenance personnel can inspect, repair and maintain the interior of the large equipment.

[0049] When the overhaul of the large equipment is completed, the movable plate 41 is driven by the hydraulic rod 2 so that the hood is pushed to the original position, and the hood is re-fixed to the large equipment by bolts, and then the control cylinder 54 is rotated. At this time, the guide rod will rotate along the guide groove 1, causing the guide plate 56 to rotate, so that the multiple moving blocks 52 drive the movable blocks thereon to gradually move away from each other, causing the movable piece 53 to disengage from the slot. At this time, the moving rod 43 is reset, and the two limit plates 47 release the limit on the hood.

[0050] Example 2

[0051] Reference Figure 1-10 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that:

[0052] The cleaning component 3 includes a driving assembly 31, a mounting plate 32 arranged on the adjusting plate 13, an air cylinder 33 arranged on the mounting plate 32, and a piston plate 34 arranged in the air cylinder 33. A linear rail 2 is symmetrically mounted on the mounting plate 32, and the air cylinder 33 is slidably mounted on the linear rail 2. A key groove is provided on the mounting plate 32, and the piston plate 34 is slidably mounted in the air cylinder 33. A spring 3 is fixedly mounted on the piston plate 34, and one end of the spring 3 away from the piston plate 34 is fixedly connected to the bottom of the air cylinder 33. Two air guide tubes are fixedly mounted on the bottom of the air cylinder 33, and the air guide tubes are connected to the inside of the air cylinder 33, and the air guide tubes pass through the key groove.

[0053] The driving assembly 31 includes a moving ring 311, a buckle 312 symmetrically arranged on the moving ring 311, a push rod 313 arranged in the moving rod 43, a sliding rod symmetrically arranged on the moving plate 41, the moving ring 311 is slidably arranged on the sliding rod, a limit rod is arranged in an array on a side of the moving plate 41 away from the trigger plate, the limit rod passes through the moving ring 311 and the gas cylinder 33, and is used to make the gas cylinder 33 and the moving plate 41 rise and fall synchronously, the buckle 312 is hingedly arranged at the inner diameter position of the moving ring 311, and the buckle 312 clamps the connecting rod 46, the buckle 312 can slide on the connecting rod 46, a top groove is opened at one end of the moving rod 43 away from the contact plate 44, a through groove is arranged on the moving rod 43, the through groove passes through the moving rod 43 and the top groove, the push rod 313 is slidably installed in the top groove, and a support rod is symmetrically installed on the side wall of the push rod 313, the support rod is slidably arranged in the through groove and the support rod is fixedly connected to the moving ring 311.

[0054] A slider 2 35 is arranged on the adjustment plate 13, an interactive component 36 is arranged on the adjustment plate 13, a cleaning plate 37 is arranged on the slider 2 35, and a telescopic plate 371 is arranged on the cleaning plate 37. A slide groove 3 is symmetrically opened on the adjustment plate 13, and the slider 2 35 is slidably installed in the slide groove 3. The interactive component 36 includes an interactive block, an interactive groove is opened in the interactive block, a gear is rotatably installed in the interactive groove, a rack 1 and a rack 2 are slidably installed in the interactive groove, the rack 1 and the rack 2 are symmetrically arranged on both sides of the gear, and the rack 1 and the rack 2 are both meshed with the gear, the rack 1 is fixedly connected to the slider 1 42, the rack 2 is fixedly connected to the slider 2 35, and the cleaning plate 37 is fixedly connected to the slider 2 35.

[0055] A rodless cylinder 38 is arranged on the telescopic plate 371, a collecting box 39 is arranged on the rodless cylinder 38, and a scraper 391 is arranged on the collecting box 39. A telescopic groove is opened in the telescopic plate 371, and the telescopic plate 371 is slidably installed in the telescopic groove. The air guide pipe is fixedly connected to the rodless cylinder 38 and is communicated with the inside of the rodless cylinder 38.

[0056] A control plate 372 is arranged in the cleaning plate 37, a side plate 373 is arranged on the control plate 372, and a lever 374 is arranged in the side plate 373. The control plate 372 is slidably installed in the telescopic groove, and four springs are arranged in an array on the control plate 372. One end of the spring four is away from the control plate 372 and is fixedly connected to one end of the telescopic plate 371 away from the rodless cylinder 38. The lever 374 is slidably arranged on the side plate 373, and a spring piece is fixedly installed on the lever 374. One end of the spring piece is away from the lever 374 and is fixedly connected to the top of the side plate 373. A control groove is opened on the cleaning plate 37, and the control groove is a U-shaped structure. The lever 374 is slidably arranged in the control groove.

[0057] During use, when the limiting component 4 limits the hood, the angle between the two connecting rods 46 and the moving rod 43 gradually increases, and the buckle 312 will slide along the connecting rod 46, and the connecting rod 46 will push the moving ring 311 to slide linearly along the sliding rod, so that the moving ring 311 gradually moves away from the moving plate 41. At this time, the moving ring 311 will drive the top rod 313 to slide out along the top groove through the support rod;

[0058] When the limiting component 4 carries the hood away from the large equipment, the rack 1 drives the gear, and the gear drives the rack 2, so that the rack 1 and the rack 2 move in opposite directions. At this time, the rack 2 will drive the cleaning plate 37 to move in the direction of the large equipment. When the rack 1 and the rack 2 move to the limit position, the scraper 391 contacts the surface of the large equipment, and the top rod 313 extending from the top groove will push the piston plate 34. At this time, the spring 3 is deformed and compressed, and the piston plate 34 guides the gas in the cylinder 33 into the rodless cylinder 38 through the air guide pipe, so that the rodless The movable block on the cylinder 38 drives the scraper 391 to scrape along the surface of the large equipment from bottom to top. The dust on the surface of the large equipment scraped off by the scraper 391 will fall into the collection box 39 for collection under the action of gravity. By adjusting the control plate 372, the lever 374 slides along the control groove, so that the distance between the control plate 372 and the telescopic plate 371 is shortened, thereby increasing the return elastic force of the spring four, and then increasing the contact pressure between the scraper 391 and the surface of the equipment, thereby improving the scraper 391. The effect of removing dust on the surface of large equipment is improved.

[0059] The remaining structures are the same as those of Example 1.

[0060] Example 3

[0061] Reference Figure 1-12 , which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that:

[0062] The locking component 2 includes a minor arc ring 21, a locking tongue 22 symmetrically arranged on the minor arc ring 21, and a locking tooth 14 arranged on the lifting plate 12. An elastic groove is opened in the minor arc ring 21, and the locking tongue 22 is slidably installed in the elastic groove. A spring 5 is fixedly installed at one end of the locking tongue 22.

[0063] A minor arc plate 23 is arranged on the minor arc ring 21, a pressure plate 24 is symmetrically arranged on the minor arc plate 23, a handle 25 is arranged on the minor arc plate 23, and a locking cylinder 26 is arranged on the minor arc ring 21, the pressure plate 24 is arranged in the elastic groove, and the end of the spring five away from the locking tongue 22 is fixedly connected to the pressure plate 24, the handle 25 is rotatably installed in the middle area of ​​the minor arc plate 23, and the handle 25 passes through the locking cylinder 26, the handle 25 is symmetrically provided with locking rods, the locking cylinder 26 is symmetrically opened with locking grooves, the locking rods are slidably installed in the locking grooves, and a spring six is ​​sleeved on the outer side of the handle 25, and the spring six is ​​located in the locking cylinder 26.

[0064] During use, since the position of the limit plate 47 is not parallel to the hood, when the two limit plates 47 approach the two sides of the hood, the two limit plates 47 will gradually approach each other under the push of the hydraulic rod 2, and the adjustment plate 13 will deflect relative to the lifting plate 12 in the lifting groove. During the deflection of the adjustment plate 13, the lock tongue 22 will contact the lock tooth 14, so that the spring 5 deforms, compresses and resets, thereby applying appropriate resistance to the rotation of the adjustment plate 13, thereby preventing the adjustment plate 13 from deflecting too fast, resulting in a decrease in the overall stability of the lifting plate 12;

[0065] When the adjustment plate 13 is rotated until the limit plate 47 is parallel to the two sides of the hood, the handle 25 is turned at this time to make the locking rod slide along the locking groove. At this time, the locking rod will push the compression spring six, and at the same time the inferior arc plate 23 will drop toward the direction of the inferior arc ring 21. At this time, the pressure plate 24 will push the spring five, so that the spring five is compressed to the limit position. At this time, the lock tongue 22 will be stuck with the lock tooth 14, and the adjustment plate 13 will be fixed to the lifting plate 12.

[0066] The remaining structure is the same as that of Example 2.

[0067] Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Based on the study of the drawings, the specification and the claims, those skilled in the art should be able to understand and implement other variations of the disclosed embodiments. In the claims, the term "comprising" does not exclude other devices or steps; the indefinite article "a" does not exclude a plurality; the terms "first" and "second" are used to indicate names rather than to indicate any specific order. Any figure marks in the claims should not be understood as limiting the scope of protection. The functions of multiple parts appearing in the claims can be implemented by a single hardware or software module. The fact that certain technical features appear in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. A lifting device for large equipment maintenance, comprising a mobile vehicle (1), a lifting frame (11) arranged on the mobile vehicle (1), and a lifting plate (12) arranged on the lifting frame (11), characterized in that: A locking component (2) arranged on the lifting plate (12), an adjusting plate (13) arranged on the lifting plate (12), a cleaning component (3) arranged on the adjusting plate (13), and a limiting component (4) arranged on the adjusting plate (13), wherein the limiting component (4) is used to limit the position of the hood, and after limiting the position of the hood, the limiting component (4) can drive the cleaning component (3) to clean the surface of the connection position between the large equipment and the hood; The limiting component (4) comprises a moving plate (41), a slider (42) symmetrically arranged on the moving plate (41), a moving rod (43) arranged on the moving plate (41), a contact plate (44) arranged on the moving rod (43), a connecting block (45) arranged on the moving rod (43), a connecting rod (46) symmetrically arranged on the connecting block (45), a limiting plate (47) symmetrically arranged on the moving plate (41), and a fixing component (5) arranged on the moving plate (41), wherein the fixing component (5) is used to limit the moving rod (43).

2. A lifting device for large equipment maintenance according to claim 1, characterized in that: The fixing component (5) comprises a base plate (51), moving blocks (52) arranged in an array on the base plate (51), and a movable sheet (53) arranged on the moving blocks (52).

3. A lifting device for large equipment maintenance according to claim 1, characterized in that: A control cylinder (54) is arranged on the movable plate (41), a guide plate (55) is arranged on the control cylinder (54), and a guide plate (56) is arranged on the guide plate (55).

4. A lifting device for large equipment maintenance according to claim 1, characterized in that: The cleaning component (3) comprises a driving assembly (31), a mounting plate (32) arranged on the adjusting plate (13), an air cylinder (33) arranged on the mounting plate (32), and a piston plate (34) arranged in the air cylinder (33).

5. A lifting device for large equipment maintenance according to claim 4, characterized in that: The driving assembly (31) comprises a moving ring (311), a buckle (312) symmetrically arranged on the moving ring (311), and a push rod (313) arranged inside the moving rod (43).

6. A lifting device for large equipment maintenance according to claim 1, characterized in that: A second slider (35) disposed on the adjustment plate (13), an interactive component (36) disposed on the adjustment plate (13), a cleaning plate (37) disposed on the second slider (35), and a telescopic plate (371) disposed on the cleaning plate (37).

7. A lifting device for large equipment maintenance according to claim 6, characterized in that: A rodless cylinder (38) is arranged on the telescopic plate (371), a collecting box (39) is arranged on the rodless cylinder (38), and a scraper (391) is arranged on the collecting box (39).

8. A lifting device for large equipment maintenance according to claim 7, characterized in that: A control plate (372) disposed in the cleaning plate (37), a side plate (373) disposed on the control plate (372), and a lever (374) disposed in the side plate (373).

9. A lifting device for large equipment maintenance according to claim 1, characterized in that: The locking component (2) comprises a minor arc ring (21), a locking tongue (22) symmetrically arranged on the minor arc ring (21), and a locking tooth (14) arranged on the lifting plate (12).

10. A lifting device for large equipment maintenance according to claim 9, characterized in that: A minor arc plate (23) arranged on the minor arc ring (21), a pressure plate (24) symmetrically arranged on the minor arc plate (23), a handle (25) arranged on the minor arc plate (23), and a locking cylinder (26) arranged on the minor arc ring (21).

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