Engine body turnover line external fixed-point partial cleaning device and method

Abstract

The application discloses an engine body overturning line external fixed-point local cleaning device and method, and belongs to the technical field of engine manufacturing. The engine body overturning line external fixed-point local cleaning device comprises a middle supporting body, bearing mounting plates are fixedly connected to the two sides of the middle supporting body, a hoisting mechanism is installed on the top of the two bearing mounting plates, shaft bodies are rotationally connected to the inside of the bottom of the two bearing mounting plates, overturning mechanisms are installed on the opposite sides of the two shaft bodies, fixing mechanisms are installed on the inner walls of the overturning mechanisms, and a limiting mechanism is installed on the top of the middle supporting body. Through the design of the hoisting mechanism, the overturning mechanism, the fixing mechanism and the limiting mechanism, the engine body can be fixed and cleaned according to the hole position of the engine body during the cleaning process. In addition, when the engine body is moved during the cleaning process, mechanical control can be adopted, manual participation is reduced, and the cleaning efficiency is ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of engine manufacturing, and particularly relates to an engine body overturning line off-site local cleaning device and method. BACKGROUND

[0002] The engine body is one of the core structures of the engine, and is usually made of aluminum alloy, magnesium alloy, titanium alloy or other high-strength materials, and is used to bear various forces and stresses generated by high temperature, high pressure and high-speed operation inside the engine. It is the main bearing body of the engine, responsible for supporting and fixing various components inside the engine, such as pistons, crankshafts, valves, etc., and ensuring that these parts work efficiently and stably during operation. The design and manufacture of the engine body requires high precision and durability, because it not only needs to have excellent mechanical strength and thermal stability, but also must ensure good sealing and corrosion resistance to ensure long-term reliable operation of the engine.

[0003] At present, during the assembly of the engine, the engine body is directly provided by the supplier, and the cleanliness of the engine body is somewhat deviated. The engine body needs to be cleaned locally before being assembled, and the existing engine body itself is relatively heavy, which makes transportation and rolling inconvenient during the cleaning process, and thus the cleaning efficiency is extremely low. In addition, during the cleaning process, manual participation is required for overturning and fixing, which reduces the overall cleaning efficiency of the engine and greatly reduces the production efficiency of the factory. SUMMARY

[0004] The technical problem to be solved by the application is to overcome the shortcomings of the prior art and provide an engine body overturning line off-site local cleaning device.

[0005] The technical solution adopted to solve the above technical problems is: an engine body overturning line off-site local cleaning device, comprising a middle support body, two bearing mounting plates are fixedly connected on both sides of the middle support body, and a hoisting mechanism is installed on the top of the two bearing mounting plates.

[0006] The bottom of each of the two bearing mounting plates is rotatably connected with a shaft body, and a overturning mechanism is installed on the opposite side of each of the two shaft bodies.

[0007] A fixing mechanism is installed on the inner wall of the overturning mechanism, and a limiting mechanism is installed on the top of the middle support body.

[0008] Further, the hoisting mechanism comprises a crossbeam body fixedly connected to the inner portions of the two bearing mounting plates, a fixed sleeve is fixedly connected to the middle end of the outer wall of the crossbeam body, a lifting ring assembly is fixedly connected to the top of the fixed sleeve, a lifting hook plate is fixedly connected to the outer wall of the lifting ring assembly, a spacer ring is slidingly connected to each side of the outer wall of the crossbeam body, a crossbeam locking nut is rotatably connected to one side of each of the two spacer rings, and the two spacer rings and the crossbeam locking nut are located outside the corresponding bearing mounting plates.

[0009] By the above technical scheme, when in use, the crane is connected with the hoisting mechanism, so that the engine body can reach the required position during cleaning, and the engine body can be changed with different operators during cleaning, so that the cleaning is more convenient. Specifically, the two bearing mounting plates are fixedly built into the overall frame by the two spacer rings on the two sides of the crossbeam body and by the crossbeam locking nuts, then the lifting hook plate composed of the fixed sleeve and the lifting ring assembly on the crossbeam body is connected by the connecting device of the crane, and then the cleaning device can be smoothly lifted, thereby being more convenient to use.

[0010] Further, the turnover mechanism comprises a body rear end mounting plate movably connected to one end of the outer wall of one of the shaft bodies, a body front end mounting plate movably connected to one end of the outer wall of the other shaft body, shaft bearing retainer rings fixedly connected to the other ends of the outer walls of the two shaft bodies, centripetal bearings provided on one side of each of the two shaft bearing retainer rings, semicircular keys provided on one side of the outer wall of each of the two shaft bodies, body mounting plate locking nuts provided on one side of the outer wall of each of the two shaft bodies, the two centripetal bearings being fixedly connected to the inner portions of the corresponding bearing mounting plates, the outer walls of the two shaft bodies being fixedly connected to the corresponding centripetal bearings, and the two semicircular keys and the body mounting plate locking nuts being located in the inner portions of the corresponding body rear end mounting plate and body front end mounting plate.

[0011] Through the above technical solution, before cleaning the engine body, the cleaning device is installed using the flip mechanism, and the fixed angle and the hole position of the engine body are strictly matched through special holes to ensure that cleaning is more convenient and quick. Specifically, the two shaft bodies are connected with the corresponding bearing mounting plates, the rear end mounting plate of the body and the front end mounting plate of the body using radial bearings, and the two are connected by using radial bearings, semicircular keys and body mounting plate locking nuts, which are not easy to fall off while ensuring rotation. Then the engine body is placed on the rear end mounting plate and the front end mounting plate of the body. Between the mounting plates, multiple flat washers, spring washers and mounting plate bolts are used to connect with the position holes on the body, and then the crane is started to lift the body to the appropriate position. At this time, the shaft body is used to drive the rear end mounting plate and the front end mounting plate of the body to rotate. The upper end of the bearing mounting plate is provided with a through hole that matches the crossbeam, which is a transition fit, and the lower end is provided with a stepped hole that matches the bearing, which is an interference fit. There is a pin hole in the middle, which is a clearance fit. A bearing retaining ring groove is provided at one end of the shaft body, and a cam, thread and cotter pin hole at the other end. The center of the shaft is concentric with the center of the body crankshaft, so as to adapt to a wider range of needs and faster assembly.

[0012] Furthermore, the fixing mechanism includes multiple planar washers movably connected to the surfaces of the corresponding rear end mounting plate and front end mounting plate of the body, a spring washer is provided on one side of the multiple planar washers, and mounting plate bolts are provided inside the multiple planar washers and spring washers.

[0013] Through the above technical solution, when the engine body is placed in the cleaning device, the fixing mechanism is used to fix the engine body. The rear end mounting plate and the front end mounting plate of the body are designed with corresponding through holes according to the screw holes of the gear chamber and the flywheel housing installed at the front and rear ends of the body. The lower part of the rear end mounting plate and the front end mounting plate of the body has a makeshift hole of the shaft body, which makes the cleaning applicability of the cleaning device higher. Specifically, the engine body is then placed between the rear end mounting plate and the front end mounting plate of the body. At this time, multiple flat washers, spring washers and mounting plate bolts are used to connect with the position holes on the body. Then, the crane is started to lift the body to a suitable position. At this time, the shaft body is used to drive the rear end mounting plate and the front end mounting plate of the body to rotate, and then the body is flipped over.

[0014] Further, the limiting mechanism comprises a motor fixedly connected to the bottom of the intermediate support body, a first gear fixedly connected to the end of the drive shaft of the motor, a threaded sleeve rotatably connected to the inner wall of the intermediate support body, a second gear fixedly connected to the top of the threaded sleeve, a threaded rod threadedly connected to the inner wall of the threaded sleeve, an extrusion block fixedly connected to the bottom of the threaded rod, and two racks engaged with the outer wall of the second gear, two first connecting rods fixedly connected to one side of the two racks, two second connecting rods fixedly connected to the outer wall of one end of the two first connecting rods, and two latches fixedly connected to the bottom of the two second connecting rods.

[0015] With the above technical scheme, when the engine body is installed and the cleaning position needs to be changed, the limiting mechanism can be retracted during cleaning of the engine body, thereby improving the limiting and ensuring the stability of the engine body after the turning is completed. Specifically, the motor at the bottom of the intermediate support body drives the first gear at the end of the drive shaft to rotate, and then drives the threaded sleeve at the bottom of the second gear to rotate. At this time, the extrusion block at the bottom of the threaded rod in the threaded sleeve moves downward until the engine body is extruded. At the same time, with the rotation of the second gear, the two racks are moved towards the middle, and then the first connecting rods and the second connecting rods are moved towards the middle. Then, the latches at the other end of the second connecting rods are inserted into the holes in the rear end mounting plate and the front end mounting plate of the engine body through the bearing mounting plate. Then, the engine body is fixed, and the required cleaning position of the engine body is cleaned by hand according to the process requirements. The latches are repeatedly removed, the engine body is turned back to the original position, and the flow is continued downward until the cleaning of the engine body is completed.

[0016] A cleaning method of an engine body turning line external fixed point local cleaning device, comprising the following steps:

[0017] Step one: the operator needs to ensure that the engine body or parts are stable and safe at the turning line external fixed point position, and then two bearing mounting plates are fixed on both sides of the beam body through two spacer rings and a beam locking nut to build a whole frame, and then a hook plate composed of a fixed sleeve and a lifting ring assembly is connected to the beam body by using the connecting device of a crane;

[0018] Step two: then, the engine body is placed between the rear end mounting plate and the front end mounting plate, and a plurality of flat washers, spring washers and mounting plate bolts are connected to the position holes on the engine body. Then, the crane is started to lift the engine body to a suitable position. Then, the shaft body drives the rear end mounting plate and the front end mounting plate to rotate, and then the engine body is turned until the center of the cylinder hole is parallel to the ground or the position is easy to operate.

[0019] Step three: when the engine body position is adjusted, the motor at the bottom of the middle support body drives the first gear at the end of the drive shaft to rotate, then drives the threaded sleeve at the bottom of the second gear to rotate, at this time the extrusion block at the bottom of the threaded rod inside the threaded sleeve moves downward until the engine body is extruded, at the same time, with the rotation of the second gear, the two racks will be moved to the middle, then the first connecting rod and the second connecting rod will be moved to the middle, then the pin at the other end of the second connecting rod will be inserted into the hole on the rear end mounting plate and the front end mounting plate of the engine body through the bearing mounting plate, then the engine body is fixed, the required cleaning parts of the engine body are cleaned by hand according to the process requirements, the pin is removed repeatedly, the engine body is turned back to the original position, and the flow is continued downward until the engine body cleaning is completed.

[0020] The beneficial effects of the present application are as follows: (1) the present application can fix the engine body according to the hole position during the cleaning process of the engine body, and then clean it, so that the engine can be cleaned before assembly, and the engine body can be moved during cleaning, which can reduce the participation of manual work and ensure the cleaning efficiency and the stability of the engine body during cleaning; (2) the present application can select the height and cleaning position after lifting the cleaning device, which can ensure the comfort during cleaning and greatly improve the cleaning efficiency; (3) the present application can fix the engine body through the special hole position to ensure the stability of the engine body during cleaning, and the upper end of the bearing mounting plate is provided with a through hole matched with the cross beam for transition fit, the lower end is provided with a stepped hole matched with the bearing for interference fit, and the middle part is provided with a pin hole for clearance fit, so that the cleaning device can meet the needs of wider adaptation and faster assembly with the engine body, and the engine body can be more stable during cleaning when the mechanical cooperation is adopted during turning over. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the perspective structural schematic diagram of the first view of the present application;

[0022] Figure 2 is Figure 1 is the enlarged view of A in figure 6;

[0023] Figure 3 is the perspective structural schematic diagram of the second view of the present application;

[0024] Figure 4 is the front view of the present application;

[0025] Figure 5 is the sectional view of the turning over mechanism of the present application;

[0026] Figure 6 is Figure 5 a local enlarged view at B in FIG. 1;

[0027] Figure 7 is Figure 5 a local enlarged view at C in FIG. 1;

[0028] Figure 8 is a sectional view of the lifting mechanism of the present application;

[0029] Figure 9 is Figure 8 a local enlarged view at D in FIG. 1.

[0030] Reference signs: 1, intermediate support body; 2, bearing mounting plate; 3, lifting mechanism; 301, crossbeam body; 302, fixing sleeve; 303, lifting ring assembly; 304, lifting hook plate; 305, spacer ring; 306, crossbeam locking nut; 4, shaft body; 5, turnover mechanism; 501, machine body rear end mounting plate; 502, machine body front end mounting plate; 503, bearing retainer; 504, radial bearing; 505, semicircular key; 506, machine body mounting plate locking nut; 6, fixing mechanism; 601, flat washer; 602, spring washer; 603, mounting plate bolt; 7, limiting mechanism; 701, motor; 702, first gear; 703, threaded sleeve; 704, second gear; 705, threaded rod; 706, extrusion block; 707, rack; 708, first connecting rod; 709, second connecting rod; 710, latch. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0032] As Figures 1-9As shown, the engine body overturns the line outside the fixed point local cleaning device of the embodiment, including intermediate support body 1, both sides of intermediate support body 1 are fixedly connected with bearing mounting plate 2, two bearing mounting plates 2 top are installed with lifting mechanism 3, lifting mechanism 3 includes crossbeam body 301 fixedly connected in two bearing mounting plates 2, the outer wall middle end of crossbeam body 301 is fixedly connected with fixed sleeve 302, the top of fixed sleeve 302 is fixedly connected with lifting ring assembly 303, the outer wall of lifting ring assembly 303 is fixedly connected with lifting hook plate 304, both sides of crossbeam body 301 outer wall are slidably connected with spacer ring 305, both sides of two spacer rings 305 are rotatably connected with crossbeam locking nut 306, both sides of two spacer rings 305 and crossbeam locking nut 306 are located on the outer side of corresponding bearing mounting plate 2, when using, use the crane and lifting mechanism 3 are connected, so that the engine body can reach the required position when cleaning, so that the engine body can be changed with the change of different operators when cleaning, so that cleaning is more convenient, specifically, two bearing mounting plates 2 are fixedly built up with crossbeam body 301 through two spacer rings 305 and utilize crossbeam locking nut 306 respectively on both sides, then the hook plate 304 composed of the fixed sleeve 302 and the lifting ring assembly 303 on the crossbeam body 301 is connected using the connecting device of the crane, and then the cleaning device can be smoothly lifted, and then it is more convenient to use.

[0033] As Figure 3 and Figure 7As shown, the two bearing mounting plates 2 are rotatably connected with shaft bodies 4 at the bottom, and the opposite sides of the two shaft bodies 4 are mounted with turnover mechanisms 5, the turnover mechanism 5 comprises a machine rear end mounting plate 501 movably connected to one end of the outer wall of one of the shaft bodies 4, the other end of the outer wall of the other shaft body 4 is movably connected with a machine front end mounting plate 502, the other end of the outer wall of the two shaft bodies 4 is fixedly connected with a bearing retainer 503, one side of the bearing retainer 503 is provided with a radial bearing 504, one side of the outer wall of the two shaft bodies 4 is provided with a semicircular key 505, one side of the outer wall of the two shaft bodies 4 is provided with a machine mounting plate locking nut 506, the two radial bearings 504 are fixedly connected with the corresponding bearing mounting plates 2 inside, the outer wall of the two shaft bodies 4 is fixedly connected with the corresponding radial bearings 504, the two semicircular keys 505 and the machine mounting plate locking nut 506 are located inside the corresponding machine rear end mounting plate 501 and machine front end mounting plate 502, before cleaning the engine body, the turnover mechanism 5 is used to install the cleaning device, and the fixed angle is matched with the hole position of the engine body through the special hole position to achieve strict and rigorous cooperation, so as to ensure that the cleaning is more convenient and fast, specifically, the two shaft bodies 4 are connected with the corresponding bearing mounting plates 2, machine rear end mounting plate 501 and machine front end mounting plate 502 by using the radial bearing 504, at the same time, the two are connected by using the radial bearing 504, semicircular key 505 and machine mounting plate locking nut 506, which can rotate without falling off, then the engine body is placed between the machine rear end mounting plate 501 and the machine front end mounting plate 502, at this time, a plurality of plane washers 601, spring washers 602 and mounting plate bolts 603 are used to connect with the hole on the engine body, then the crane is started to lift the engine body to the appropriate position, at this time, the shaft body 4 is used to drive the machine rear end mounting plate 501 and the machine front end mounting plate 502 to rotate, the upper end of the bearing mounting plate 2 is provided with a through hole matched with the cross beam, which is a transition fit, the lower end is provided with a stepped hole matched with the bearing, which is an interference fit, the middle part is provided with a latch hole 710, which is a clearance fit, one end of the shaft body 4 is provided with a bearing snap spring groove, the other end is provided with a convex circle, a thread and a split pin hole, the shaft center is concentric with the engine crankshaft center, which meets the needs of wider adaptation and faster assembly.

[0034] As Figure 2As shown, the inner wall of the turnover mechanism 5 is mounted with a fixing mechanism 6, the fixing mechanism 6 comprises a plurality of plane washers 601 movably connected to the surface of the rear end mounting plate 501 and the front end mounting plate 502 of the engine body, one side of the plurality of plane washers 601 is provided with a spring washer 602, the inside of the plurality of plane washers 601 and the spring washer 602 is provided with a mounting plate bolt 603, when the engine body is placed in the cleaning device, the engine body is fixed by the fixing mechanism 6 at this time, the rear end mounting plate 501 and the front end mounting plate 502 are designed with corresponding through holes according to the screw holes of the gear room and the flywheel shell at the front and rear ends of the engine body, the rear end mounting plate 501 and the front end mounting plate 502 are provided with a clearance hole of the shaft body 4 at the lower part, so that the cleaning applicability of the cleaning device is higher, specifically, the engine body is then placed between the rear end mounting plate 501 and the front end mounting plate 502, at this time, a plurality of plane washers 601, spring washers 602 and mounting plate bolts 603 are connected with the holes on the engine body, then the crane is started to lift the engine body to a suitable position, at this time, the shaft body 4 is used to drive the rear end mounting plate 501 and the front end mounting plate 502 to rotate, and then the engine body is turned over.

[0035] As Figure 3 and Figures 8-9As shown, the top of the intermediate support body 1 is provided with a limiting mechanism 7, the limiting mechanism 7 comprises a motor 701 fixedly connected to the bottom of the intermediate support body 1, the driving shaft end of the motor 701 is fixedly connected with a first gear 702, the inner wall of the intermediate support body 1 is rotatably connected with a threaded sleeve 703, the top of the threaded sleeve 703 is fixedly connected with a second gear 704, the inner wall of the threaded sleeve 703 is threadedly connected with a threaded rod 705, the bottom of the threaded rod 705 is fixedly connected with an extrusion block 706, the outer wall of the second gear 704 is engaged with two racks 707, one side of each of the two racks 707 is fixedly connected with a first connecting rod 708, the outer wall of one end of each of the two first connecting rods 708 is fixedly connected with a second connecting rod 709, the bottom of each of the two second connecting rods 709 is fixedly connected with a latch 710, the first gear 702 is located at the top of the intermediate support body 1, the first gear 702 is engaged with the second gear 704, the bottom of the threaded sleeve 703 is limited by a ring and the intermediate support body 1, when the engine body is installed and needs to be changed, the limiting mechanism 7 can be used to shrink the engine body during cleaning, improve the limiting, and at the same time after the turnover is completed, the stability of the engine body can be ensured, specifically, the motor 701 at the bottom of the intermediate support body 1 drives the first gear 702 at the driving shaft end to rotate, then drives the threaded sleeve 703 at the bottom of the second gear 704 to rotate, at this time the extrusion block 706 at the bottom of the threaded rod 705 in the threaded sleeve 703 moves downward until the engine body is extruded, at the same time, with the rotation of the second gear 704, the two racks 707 will be moved to the middle, then the first connecting rod 708 and the second connecting rod 709 will be moved to the middle, then the latch 710 at the other end of the second connecting rod 709 will pass through the bearing mounting plate 2 and be inserted into the hole in the body rear mounting plate 501 and the body front mounting plate 502, then the body is fixed, the required cleaning position of the body is cleaned locally by hand according to the process requirement, the latch 710 is repeatedly removed, the body is turned back to the original position, and the flow is continued downward until the engine body cleaning is completed.

[0036] A cleaning method of an engine body turnover line external fixed point local cleaning device, comprising the following steps:

[0037] Step one: the operator needs to ensure that the engine body or parts are stable and safe at the fixed point position outside the turnover line, two bearing mounting plates 2 are fixedly built on both sides of the beam body 301 through two spacer rings 305 and by using beam locking nuts 306, then the hook plate 304 composed of the fixed sleeve 302 and the lifting ring assembly 303 on the beam body 301 is connected by using the connecting device of the crane;

[0038] Step two: then the engine body is placed between the body rear mounting plate 501 and the body front mounting plate 502, at this time, a plurality of flat washers 601, spring washers 602 and mounting plate bolts 603 are connected with the hole on the body, then the crane is started to lift the body to the appropriate position, at this time, the shaft body 4 is used to drive the body rear mounting plate 501 and the body front mounting plate 502 to rotate, then the body is turned over, and the body cylinder hole center is parallel to the ground or the position is easy to operate;

[0039] Step three: when the engine body position is adjusted, the motor 701 at the bottom of the intermediate support body 1 is started to drive the first gear 702 at the end of the driving shaft to rotate, then the threaded sleeve 703 at the bottom of the second gear 704 is driven to rotate, at this time, the extrusion block 706 at the bottom of the threaded rod 705 inside the threaded sleeve 703 moves downward until the engine body is extruded, at the same time, with the rotation of the second gear 704, the two racks 707 will be moved to the middle, then the first connecting rod 708 and the second connecting rod 709 are moved to the middle, then the pin 710 at the other end of the second connecting rod 709 is inserted into the hole on the body rear mounting plate 501 and the body front mounting plate 502 through the bearing mounting plate 2, then the body is fixed, and the parts that need to be cleaned are cleaned by manual local cleaning according to the process requirements, the pin 710 is removed repeatedly, the body is turned over to the original position, and the flow is continued downward until the engine body cleaning is completed.

[0040] The above is only a preferred embodiment of the present application, and is not used to limit the protection scope of the present application.

Claims

1. An engine body off-line fixed-point local cleaning device, comprising an intermediate support body (1), characterized in that: Bearing mounting plates (2) are fixedly connected to both sides of the intermediate support body (1), and lifting mechanisms (3) are installed on the tops of the two bearing mounting plates (2); The bottoms of the two bearing mounting plates (2) are both rotatably connected to shaft bodies (4), and opposite sides of the two shaft bodies (4) are both installed with turning mechanisms (5); The inner wall of the flip mechanism (5) is installed with a fixing mechanism (6), and the top of the intermediate support body (1) is installed with a limiting mechanism (7); The limiting mechanism (7) comprises a motor (701) fixedly connected to the bottom of the intermediate support body (1); a first gear (702) is fixedly connected to the end of the driving shaft of the motor (701); a threaded sleeve (703) is rotatably connected to the inner wall of the intermediate support body (1); a second gear (704) is fixedly connected to the top of the threaded sleeve (703); a threaded rod (705) is threadedly connected to the inner wall of the threaded sleeve (703); an extrusion block (706) is fixedly connected to the bottom of the threaded rod (705); two racks (707) are meshed on the outer wall of the second gear (704); one side of each of the two racks (707) is fixedly connected to a first connecting rod (708); one end of each of the two first connecting rods (708) is fixedly connected to the outer wall of each of the second connecting rods (709); and the bottoms of each of the two second connecting rods (709) are fixedly connected to a latch (710).

2. The engine body off-line fixed-point local cleaning device according to claim 1, characterized in that: The lifting mechanism (3) includes a crossbeam (301) fixedly connected to the inside of two bearing mounting plates (2), a fixing sleeve (302) fixedly connected to the middle end of the outer wall of the crossbeam (301), a lifting ring assembly (303) fixedly connected to the top of the fixing sleeve (302), a hook plate (304) fixedly connected to the outer wall of the lifting ring assembly (303), spacers (305) slidably connected to both sides of the outer wall of the crossbeam (301), and a crossbeam locking nut (306) rotatably connected to one side of each of the two spacers (305).

3. The engine body off-line fixed-point local cleaning device according to claim 2, characterized in that: The two spacers (305) and the crossbeam locking nut (306) are both located outside the corresponding bearing mounting plate (2).

4. The engine body off-line fixed-point local cleaning device according to claim 1, characterized in that: The flip mechanism (5) comprises a body rear end mounting plate (501) movably connected to one end of the outer wall of one of the shaft bodies (4); one end of the outer wall of the other shaft body (4) is movably connected to the body front end mounting plate (502); the other ends of the outer walls of the two shaft bodies (4) are fixedly connected to bearing retaining rings (503); one side of the two bearing retaining rings (503) is provided with a radial bearing (504); one side of the outer walls of the two shaft bodies (4) is provided with a semicircular key (505); and one side of the outer walls of the two shaft bodies (4) is provided with a body mounting plate locking nut (506).

5. The engine body off-line fixed-point local cleaning device according to claim 4, characterized in that: The two radial bearings (504) are respectively fixedly connected to the inside of the corresponding bearing mounting plate (2), the outer walls of the two shaft bodies (4) are fixedly connected to the corresponding radial bearings (504), and the two semicircular keys (505) and the body mounting plate locking nuts (506) are respectively located inside the corresponding body rear end mounting plate (501) and body front end mounting plate (502).

6. The engine body off-line fixed-point local cleaning device according to claim 5, characterized in that: The fixing mechanism (6) comprises a plurality of planar washers (601) movably connected to the surfaces of the corresponding rear end mounting plate (501) and the front end mounting plate (502) of the machine body, a spring washer (602) being provided on one side of the plurality of planar washers (601), and mounting plate bolts (603) being provided inside the plurality of planar washers (601) and the spring washers (602).

7. The engine body off-line fixed-point local cleaning device according to claim 1, characterized in that: The first gear (702) is located at the top of the intermediate support body (1), the first gear (702) is meshed with the second gear (704), and a ring is provided at the bottom of the threaded sleeve (703) to limit the position of the threaded sleeve (703) with the intermediate support body (1).

8. The cleaning method of the engine body off-line fixed-point local cleaning device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: The operator needs to ensure that the engine body or parts are stable and safe at the fixed point outside the flip line, and respectively connect the two bearing mounting plates (2) to the two sides of the crossbeam (301) through two spacers (305) and use the crossbeam locking nuts (306) to fix them to build the overall frame, and then use the crane's connecting device to connect the hook plate (304) composed of the fixing sleeve (302) and the lifting ring assembly (303) on the crossbeam (301); Step 2: The engine body is then placed between the rear mounting plate (501) and the front mounting plate (502). At this time, a plurality of flat washers (601), spring washers (602) and mounting plate bolts (603) are used to connect with the position holes on the body. Then, the crane is started to lift the body to a suitable position. At this time, the shaft body (4) is used to drive the rear mounting plate (501) and the front mounting plate (502) of the body to rotate. Then, the body is turned over until the center of the cylinder hole of the body is parallel to the ground or in a position that is easy for people to operate. Step 3: After the position of the engine body is adjusted, the motor (701) at the bottom of the intermediate support body (1) is started to drive the first gear (702) at the drive shaft end to rotate, and then the threaded sleeve (703) at the bottom of the second gear (704) is driven to rotate. At this time, the extrusion block (706) at the bottom of the threaded rod (705) inside the threaded sleeve (703) moves downward until the engine body is squeezed. At the same time, as the second gear (704) rotates, it will drive the two racks (707 ) moves toward the middle end, and then drives the first connecting rod (708) and the second connecting rod (709) to move toward the middle, and then the pin (710) at the other end of the second connecting rod (709) will pass through the bearing mounting plate (2) and insert into the holes on the rear end mounting plate (501) and the front end mounting plate (502) of the body, and then fix the body, and manually clean the parts of the body that need to be cleaned according to the process requirements, repeatedly remove the pin (710), turn the body back to its original position, and continue to flow downward until the engine body is cleaned.

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