Cast iron engine front end cover quick disassembly assembly and disassembly method thereof

Through the coordination of the adjustable assembly part and the electric disassembly end, combined with the negative pressure suction component, the problems of bolts falling and cumbersome operation during the disassembly of the front end cover of the cast iron engine are solved, and efficient and fast disassembly and cleaning effects are achieved.

CN120644955APending Publication Date: 2025-09-16KUNSHAN LUFENGYUAN MECHANICS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510823441.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-19
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

In the prior art, the disassembly process of the cast iron engine front end cover is complicated, the bolts are easy to fall off, and it is difficult to remove multiple groups of bolts in a unified manner, the operation is troublesome, and the use effect is poor.

Method used

It adopts the combination of an adjustable assembly part and multiple sets of electric disassembly ends, and realizes the synchronous removal of bolts and quick removal of the front cover through the negative pressure suction component. The negative pressure suction component is used in conjunction with the grasping component to perform resistance support and negative pressure adsorption fixation before disassembly.

Benefits of technology

It realizes the efficient disassembly of the front end cover of the cast iron engine, avoids the falling of bolts and separate transfer processing, improves the disassembly efficiency and cleaning effect, and is suitable for the bolt removal of various types of engine end covers.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120644955A_ABST
    Figure CN120644955A_ABST
Patent Text Reader

Abstract

The invention belongs to the technical field of engine front end cover disassembly, and discloses a cast iron engine front end cover quick disassembly assembly and a disassembly method thereof.The cast iron engine front end cover quick disassembly assembly comprises an assembly frame, an adjustable assembly part is movably installed in the assembly frame, and an electric disassembly end is arranged at the end of the adjustable assembly part. By means of matched installation of the adjustable assembly part and the multiple sets of electric disassembly ends, adjustment control over the adjustable assembly part on the assembly frame can be achieved, the electric disassembly ends are driven to achieve control adjustment of different positions, targeted adjustment and fixation are conducted according to the actual distribution condition of bolts on the front end cover of the engine, and the assembly frame is convenient to use. Synchronous electric dismounting of all bolts of the engine end cover of the type can be achieved, repeated bolt dismounting operation is avoided, the dismounting efficiency is higher, adjustment control can be actually conducted according to engine models, the application range is expanded, adaptive adjustment of the bolts of the engine end covers of various models is achieved, the comprehensive use effect is good, and the dismounting efficiency is high.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention belongs to the technical field of engine front end cover disassembly, and in particular relates to a cast iron engine front end cover quick-disassembly assembly and a disassembly method thereof. Background Art

[0002] The cast iron engine front cover is a metal cover at the front of the engine, usually made of cast iron (or aluminum alloy). It is used to seal the timing system (chain / belt), support the crankshaft pulley, and protect internal parts (such as the oil pump, balance shaft, etc.). The inspection and replacement of the cast iron engine front cover usually requires special demolition equipment.

[0003] In the prior art, when disassembling the front end cover of a cast iron engine, a special torque wrench is usually used in combination with manual labor to rotate and remove each bolt on the end cover one by one. The actual number of bolts is large, and the multiple removal operations are troublesome. In addition, during the removal process, the bolts that are finally removed are easy to fall into the gaps of the machine, making them difficult to pick up. In addition, since the bolt positions of the end covers of engines of different models are different, it is actually difficult to achieve unified removal of multiple groups of bolts, which results in troublesome operations and poor use effect. Summary of the Invention

[0004] The object of the present invention is to provide a cast iron engine front end cover quick-release assembly and a disassembly method thereof, so as to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a cast iron engine front end cover quick-release assembly and a disassembly method thereof, comprising an assembly stand, an adjustable assembly portion movably installed inside the assembly stand, an electric disassembly end provided at the end of the adjustable assembly portion, the position of the electric disassembly end being controlled by the adjustable assembly portion through swinging and telescoping, a grabbing assembly fixedly provided at the bottom of the assembly stand, a negative pressure suction assembly provided at the top of the assembly stand, and when the grabbing assembly contacts and seals with the engine front end cover, the negative pressure suction assembly causes the grabbing assembly to be adsorbed and fixed to the engine front end cover. The adjustable assembly part includes a sleeve frame and a sleeve plate. The sleeve frame is swingably arranged inside the assembly frame, and the sleeve plate is telescopically sleeved in the sleeve frame. The adjustable assembly part is located at four positions on the front of the assembly frame.

[0006] Preferably, an adapting opening is provided inside the assembly frame, a positioning column located in the adapting opening is fixed inside the assembly frame, and the adjustable assembly portion swings left and right in the adapting opening around the positioning column.

[0007] Preferably, a locking mechanism 1 is provided on the top of the adjustable assembly part, and the locking mechanism 1 locks the adjustable assembly part after swing adjustment. A locking mechanism 2 is provided on the top of the adjustable assembly part, and the locking mechanism 2 locks the sleeve after movement adjustment.

[0008] Preferably, the locking mechanism 1 includes a positioning bolt 1 and a threaded hole 1, the threaded hole 1 is opened at the top of the assembly frame, and the positioning bolt 1 is threadedly sleeved inside the threaded hole 1; the locking mechanism 2 includes a positioning bolt 2 and a threaded hole 2, the threaded hole 2 is opened at the top of the frame, and the positioning bolt 2 is threadedly sleeved in the threaded hole 2.

[0009] Preferably, the top and bottom of the sleeve frame are respectively provided with positioning groove 1 and positioning groove 2, the positioning groove 1 is adapted to the positioning bolt 1, the positioning groove 2 is adapted to the positioning column, and the free end of the positioning column is rotatably sleeved in the positioning groove 2.

[0010] Preferably, a spring 1 is fixedly provided inside the sleeve frame, the other end of the spring 1 is fixedly connected to the sleeve plate, and the sleeve plate is elastically connected to the sleeve frame through the spring 1.

[0011] Preferably, the electric disassembly end includes a support frame, a support seat, a motor and a disassembly end, the support frame is fixed to the outer end of the sleeve, the support seat is fixed to the top of the support frame, and supports the motor fixed on the top, the disassembly end is detachably sleeved on the inside of the support seat, and the top of the disassembly end is fixedly connected to the output shaft of the motor, and the bottom of the disassembly end is a sleeve adapted for a hexagonal bolt, and a magnet is embedded in the sleeve.

[0012] Preferably, a through hole is provided on the front of the assembly frame, and one end of the negative pressure suction component is connected to the grabbing component through the through hole. The grabbing component includes a fixed cylinder, a second spring, a movable shaft and a suction cup. The fixed cylinder is connected to the through hole, one end of the second spring is fixed in the fixed cylinder, and the other end is fixedly connected to the movable shaft. The suction cup is fixed to the bottom of the movable shaft, and an air hole is provided inside the movable shaft, and the air hole is connected to the suction cup.

[0013] Preferably, the negative pressure suction assembly includes a vacuum pump, a control valve and an intermediate tube. The front of the assembly frame is fixedly connected to a bracket. The vacuum pump is fixed in the bracket through a bottom plate. The control valve is connected to the suction end of the vacuum pump. One suction end of the control valve is connected to the intermediate tube. The intermediate tube is connected to the through hole. The other end of the control valve is connected to a bypass hose. The end of the bypass hose is detachably provided with a filter portion.

[0014] A method for disassembling a quick-release assembly of a cast iron engine front end cover comprises the following disassembly steps: Step 1: Preset processing: according to the model of the corresponding engine front end cover, push the adjustable assembly part to swing, and control the movement of the sleeve plate, driving the electric disassembly end at the end of the sleeve plate to move, so that the position of each group of electric disassembly ends is consistent with the bolt position of the front end cover of the engine model; Step 2: After the preset processing, for the specified model of engine front cover, the grab assembly on the assembly frame is made to contact the front cover, and while the grab assembly is compressed, each set of electric disassembly end sleeves is set outside the bolt to complete the positioning preparation; Step 3: Start each set of electric disassembly terminals, remove all bolts simultaneously and fix them on the electric disassembly terminals by suction; Step 4: Simultaneously start the negative pressure suction assembly to allow the grabbing assembly to be adsorbed and fixed on the front end cover. Remove the bolts and when moving out of the assembly frame, directly drive the front end cover that has been adsorbed and grabbed to be removed, completing the quick disassembly.

[0015] The beneficial effects of the present invention are as follows: (1) The present invention utilizes the coordinated installation of an adjustable assembly part and multiple groups of electric disassembly ends to realize the adjustment and control of the adjustable assembly part on the assembly frame, and drives each group of electric disassembly ends to realize the control and adjustment of different positions. According to the actual distribution of the bolts on the front end cover of the engine, targeted adjustment and fixation are performed, so that the synchronous electric disassembly of each bolt of the end cover of the engine of this type can be realized, avoiding repeated bolt disassembly operations, and having higher disassembly efficiency. In addition, the present invention can actually be adjusted and controlled according to the engine model, thereby expanding the scope of application and realizing the adaptive adjustment of the bolts of the end covers of various models of engines. The comprehensive use effect is good and the disassembly efficiency is high.

[0016] (2) The present invention utilizes a negative pressure suction component in conjunction with a grabbing component to provide resistance support before disassembly. On the one hand, it supports quick disassembly processing. On the other hand, under resistance sealing, it cooperates with vacuum to achieve negative pressure adsorption fixation, so that the grabbing component grabs the front end cover of the engine, and can be quickly moved and removed after the bolts are removed, avoiding the need to transfer the front end cover of the engine separately after the disassembly equipment is transferred, further improving the quick disassembly effect, and no intermediate processing is required. After the bolts are removed, the engine can be completely removed, and the use effect is good.

[0017] (3) The present invention reuses the negative pressure suction component, switches the suction direction, and cooperates with the bypass hose to achieve suction processing in different directions. By changing the position of the bypass hose, the cleaning processing of the engine front end cover that is disassembled in time is carried out, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 A schematic diagram of an assembly frame of the present invention; Figure 3 A schematic diagram of the connection between the adjustable assembly portion and the electric disassembly end of the present invention; Figure 4 is a cross-sectional schematic diagram of the adjustable assembly portion of the present invention; Figure 5This is a schematic diagram of the connection between the negative pressure suction assembly and the bypass hose of the present invention; Figure 6 An exploded schematic diagram of the grabbing assembly of the present invention; Figure 7 It is a schematic cross-sectional view of the movable shaft of the present invention.

[0019] In the figure: 1. Assembly frame; 2. Adjustable assembly part; 21. Sleeve frame; 22. Sleeve plate; 3. Electric disassembly end; 31. Support frame; 32. Support seat; 33. Motor; 34. Disassembly end; 4. Grabbing assembly; 41. Fixing cylinder; 42. Spring 2; 43. Movable shaft; 44. Suction cup; 5. Negative pressure suction assembly; 51. Vacuum pump; 52. Control valve; 53. Intermediate pipe; 6. Bracket; 7. Bypass hose; 8. Adapter; 9. Positioning column; 10. Positioning bolt 1; 11. Through hole; 12. Threaded hole 1; 13. Positioning bolt 2; 14. Positioning groove 1; 15. Positioning groove 2; 16. Spring 1; 17. Air hole; 18. Threaded hole 2. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 7 As shown, an embodiment of the present invention provides a quick-release assembly of a front end cover of a cast iron engine and a disassembly method thereof, comprising an assembly frame 1, an adjustable assembly part 2 movably installed inside the assembly frame 1, an electric disassembly end 3 provided at the end of the adjustable assembly part 2, the adjustable assembly part 2 controls the position of the electric disassembly end 3 by swinging and telescoping, a grabbing assembly 4 is fixedly provided at the bottom of the assembly frame 1, a negative pressure suction assembly 5 is provided at the top of the assembly frame 1, when the grabbing assembly 4 contacts and seals with the front end cover of the engine, the grabbing assembly 4 is adsorbed and fixed to the front end cover of the engine through the negative pressure suction assembly 5, the adjustable assembly part 2 comprises a sleeve frame 21 and a sleeve plate 22, the sleeve frame 21 is swingably arranged inside the assembly frame 1, the sleeve plate 22 is telescopically sleeved in the sleeve frame 21, and the adjustable assembly part 2 is located at the top, bottom, left and right of the front of the assembly frame 1.

[0022] Embodiment 1: Preset processing is performed before disassembly. According to the model of the corresponding engine front end cover, the sleeve frame 21 in the adjustable assembly part 2 is pushed to swing in the adapter 8. After swinging to a suitable angle, the locking mechanism is operated to lock and fix it, and the sleeve plate 22 in the sleeve frame 21 is pulled to move, and the electric disassembly end 3 at the end of the sleeve plate 22 is further driven to move, so that the position of each group of electric disassembly ends 3 is consistent with the bolt position of the engine front end cover of the model, and the preset adjustment processing is completed. When actually disassembling and using, for the specified model of the engine front end cover, the suction cup 44 in the grabbing assembly 4 on the assembly frame 1 is elastically abutted on the front end cover, and after the abutment, the suction cup 44 is made to Seal, and push the assembly frame 1 to compress the grabbing component 4, so that the spring 2 42 is compressed, driving each group of electric disassembly ends 3 to be sleeved on the outside of the bolt, completing the positioning preparation, starting each group of electric disassembly ends 3, and each group of electric disassembly ends 3 synchronously removes all bolts at the same time and adsorbs and fixes them on the electric disassembly ends 3, and at the same time starts the negative pressure suction component 5, and the vacuum pump 51 sucks the air in the grabbing component 4 through the control valve 52, the intermediate tube 53 and the through hole 11, so that a negative pressure is formed inside the grabbing component 4, so that the grabbing component 4 is adsorbed and fixed on the front end cover, and when the bolts are taken out and the assembly frame 1 is moved out, the front end cover that is adsorbed and grabbed is directly driven to be removed, completing the quick disassembly.

[0023] First of all, by utilizing the coordinated installation of the adjustable assembly part 2 and multiple groups of electric disassembly ends 3, the adjustable assembly part 2 can be adjusted and controlled on the assembly frame 1, and each group of electric disassembly ends 3 can be driven to achieve control and adjustment at different positions. According to the actual distribution of bolts on the front end cover of the engine, targeted adjustment and fixation can be performed, so that the synchronous electric removal of each bolt of the end cover of this type of engine can be achieved, avoiding repeated bolt removal operations, and the removal efficiency is higher. In fact, it can be adjusted and controlled according to the engine model, expanding the scope of application, and realizing adaptive adjustment of bolts of various types of engine end covers. The comprehensive use effect is good and the disassembly efficiency is high.

[0024] In addition, by utilizing the negative pressure suction component 5 in conjunction with the grabbing component 4 to perform resistance support before disassembly, on the one hand, it supports quick disassembly processing, and on the other hand, under the resistance seal, it cooperates with vacuum to achieve negative pressure adsorption fixation, so that the grabbing component 4 grabs the front end cover of the engine, and can be quickly moved and removed after the bolts are removed, avoiding the need to transfer the front end cover of the engine separately after the disassembly equipment is transferred, further improving the quick disassembly effect, and no intermediate processing is required. After the bolts are removed, it can be completely removed, and the use effect is good.

[0025] Example 2: After dismantling, continue to start the negative pressure suction component 5 and activate the control valve 52 to switch the suction direction, and suck the external air through the bypass hose 7. Grab the bypass hose 7 and cooperate with the end filter part, facing the front cover of the engine to achieve end suction cleaning.

[0026] First, by reusing the negative pressure suction component 5, by switching the suction direction and cooperating with the bypass hose 7, suction processing in different directions can be achieved, and by changing the position of the bypass hose 7, the cleaning processing of the front end cover of the engine disassembled in time is achieved, and the use effect is good.

[0027] The assembly frame 1 has an adapting opening 8 formed inside, a positioning column 9 fixed inside the assembly frame 1 and located in the adapting opening 8 , and the adjustable assembly part 2 swings left and right in the adapting opening 8 around the positioning column 9 .

[0028] The adapting opening 8 reserves swing space for the sleeve frame 21 , and the positioning column 9 enables the adjustable mounting part 2 to rotate stably and swing and adjust along the moving range under restrictions.

[0029] Among them, a locking mechanism 1 is provided at the top of the adjustable assembly part 2, which locks the adjustable assembly part 2 after swing adjustment. A locking mechanism 2 is provided at the top of the adjustable assembly part 2, which locks the sleeve 22 after movement adjustment. The locking mechanism 1 includes a positioning bolt 10 and a threaded hole 12. The threaded hole 12 is opened at the top of the assembly frame 1, and the positioning bolt 10 is threadedly sleeved inside the threaded hole 12. The locking mechanism 2 includes a positioning bolt 13 and a threaded hole 18. The threaded hole 18 is opened at the top of the sleeve frame 21, and the positioning bolt 13 is threadedly sleeved in the threaded hole 18.

[0030] The first locking mechanism realizes locking of the adjustable assembly part 2 after swinging, maintaining the angle and position stable, and the second locking mechanism realizes locking and fixing of the sleeve plate 22 after telescopic sliding along the sleeve frame 21, maintaining the position stable and preventing slipping.

[0031] Among them, the top and bottom of the sleeve frame 21 are respectively provided with a positioning groove 14 and a positioning groove 2 15, the positioning groove 14 is adapted to the positioning bolt 10, the positioning groove 2 15 is adapted to the positioning column 9, and the free end of the positioning column 9 is rotatably sleeved in the positioning groove 2 15.

[0032] The positioning groove 1 14 and the positioning groove 2 15 are respectively provided with the positioning bolt 10 and the positioning column 9 to maintain the positioning stability.

[0033] Among them, a spring 16 is fixedly provided inside the sleeve frame 21, and the other end of the spring 16 is fixedly connected to the sleeve plate 22, and the sleeve plate 22 is elastically connected to the sleeve frame 21 through the spring 16.

[0034] By utilizing the spring 16 to realize the elastic connection between the sleeve plate 22 and the sleeve frame 21, on the one hand, the sleeve plate 22 is prevented from slipping, and on the other hand, it is convenient to reset.

[0035] Among them, the electric disassembly end 3 includes a support frame 31, a support seat 32, a motor 33 and a disassembly end 34. The support frame 31 is fixed to the outer end of the sleeve 22, the support seat 32 is fixed to the top of the support frame 31, and supports the motor 33 fixed on the top. The disassembly end 34 is detachably sleeved on the inside of the support seat 32, and the top of the disassembly end 34 is fixedly connected to the output shaft of the motor 33. The bottom of the disassembly end 34 is a sleeve adapted for a hexagonal bolt, and a magnet is embedded in the sleeve.

[0036] The electric disassembly end 3 realizes the electric disassembly of the bolts, improves disassembly efficiency, and the detachable disassembly end 34 is convenient for removal and processing. Specifically, it can be installed by threaded socket or bolt. The bottom sleeve of the disassembly end 34 is adapted to the hexagonal bolt, and the disassembly is completed by rotation. The magnet can magnetically fix the rotating disassembly bolt to prevent it from falling and facilitate collection.

[0037] Among them, a through hole 11 is opened on the front of the assembly frame 1, and one end of the negative pressure suction component 5 is connected to the grabbing component 4 through the through hole 11. The grabbing component 4 includes a fixed cylinder 41, a spring 2 42, a movable shaft 43 and a suction cup 44. The fixed cylinder 41 is connected to the through hole 11, one end of the spring 2 42 is fixed in the fixed cylinder 41, and the other end is fixedly connected to the movable shaft 43. The suction cup 44 is fixed at the bottom of the movable shaft 43. An air hole 17 is provided inside the movable shaft 43, and the air hole 17 is connected to the suction cup 44.

[0038] By utilizing the cooperation between the negative pressure suction component 5 and the grabbing component 4, grabbing under negative pressure adsorption is achieved, and after removing the bolts, the front end cover can be directly taken out.

[0039] Among them, the negative pressure suction component 5 includes a vacuum pump 51, a control valve 52 and an intermediate tube 53. The front of the assembly frame 1 is fixedly connected to a bracket 6. The vacuum pump 51 is fixed in the bracket 6 through the bottom plate. The control valve 52 is connected to the suction end of the vacuum pump 51. One suction end of the control valve 52 is connected to the intermediate tube 53. The intermediate tube 53 is connected to the through hole 11. The other end of the control valve 52 is connected to a bypass hose 7. The end of the bypass hose 7 is detachable and provided with a filter part.

[0040] By utilizing the bypass effect of the bypass hose 7 and cooperating with the filter portion, the cleaning process is performed under adsorption toward the front end cover under the action of suction force.

[0041] A method for disassembling a quick-release assembly of a cast iron engine front end cover comprises the following disassembly steps: Step 1: Preset processing: According to the model of the corresponding engine front end cover, the adjustable assembly part 2 is pushed to swing, and the sleeve plate 22 is controlled to move, driving the electric disassembly end 3 at the end of the sleeve plate 22 to move, so that the position of each group of electric disassembly ends 3 is consistent with the bolt position of the front end cover of the engine of this model; Step 2: After the preset processing, for the specified model of engine front end cover, the grabbing assembly 4 on the assembly frame 1 is made to contact the front end cover, and while the grabbing assembly 4 is compressed, each set of electric disassembly ends 3 is sleeved on the outside of the bolt, completing the positioning preparation; Step 3: Start each group of electric disassembly terminals 3, remove all bolts simultaneously and fix them on the electric disassembly terminals 3 by adsorption; Step 4: Simultaneously start the negative pressure suction assembly 5 so that the grabbing assembly 4 is adsorbed and fixed on the front end cover, and when the bolts are removed and the assembly frame 1 is moved out, the front end cover that is adsorbed and grabbed is directly removed to complete the quick disassembly.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cast iron engine front end cover quick-release assembly, comprising an assembly frame (1), characterized in that: An adjustable assembly part (2) is movably installed inside the assembly frame (1), and an electric disassembly end (3) is provided at the end of the adjustable assembly part (2). The adjustable assembly part (2) controls the position of the electric disassembly end (3) by swinging and extending. A grabbing assembly (4) is fixedly provided at the bottom of the assembly frame (1), and a negative pressure suction assembly (5) is provided at the top of the assembly frame (1). When the grabbing assembly (4) contacts and seals with the front end cover of the engine, the grabbing assembly (4) is adsorbed and fixed to the front end cover of the engine through the negative pressure suction assembly (5). The adjustable assembly part (2) comprises a sleeve frame (21) and a sleeve plate (22); the sleeve frame (21) is swingably arranged inside the assembly frame (1); the sleeve plate (22) is telescopically sleeved in the sleeve frame (21); and the adjustable assembly part (2) is located at four locations on the front of the assembly frame (1).

2. A cast iron engine front end cover quick-release assembly according to claim 1, characterized in that: An adapting opening (8) is provided inside the assembly frame (1), a positioning column (9) located in the adapting opening (8) is fixed inside the assembly frame (1), and the adjustable assembly portion (2) swings left and right in the adapting opening (8) around the positioning column (9).

3. The cast iron engine front end cover quick-release assembly according to claim 2, characterized in that: A locking mechanism 1 is provided on the top of the adjustable assembly part (2), and the locking mechanism 1 locks the adjustable assembly part (2) after swing adjustment. A locking mechanism 2 is provided on the top of the adjustable assembly part (2), and the locking mechanism 2 locks the sleeve plate (22) after movement adjustment.

4. A cast iron engine front end cover quick-release assembly according to claim 3, characterized in that: The locking mechanism 1 includes a positioning bolt 1 (10) and a threaded hole 1 (12), the threaded hole 2 (12) is opened at the top of the assembly frame (1), and the positioning bolt 1 (10) is threadedly sleeved inside the threaded hole 1 (12), and the locking mechanism 2 includes a positioning bolt 2 (13) and a threaded hole 2 (18), the threaded hole 2 (18) is opened at the top of the sleeve frame (21), and the positioning bolt 2 (13) is threadedly sleeved in the threaded hole 2 (18).

5. The cast iron engine front end cover quick-release assembly according to claim 4, characterized in that: The top and bottom of the sleeve frame (21) are respectively provided with a positioning groove 1 (14) and a positioning groove 2 (15), wherein the positioning groove 1 (14) is adapted to the positioning bolt 1 (10), and the positioning groove 2 (15) is adapted to the positioning column (9), and the free end of the positioning column (9) is rotatably sleeved in the positioning groove 2 (15).

6. The cast iron engine front end cover quick-release assembly according to claim 1, characterized in that: A spring 1 (16) is fixedly provided inside the sleeve frame (21), and the other end of the spring 1 (16) is fixedly connected to the sleeve plate (22). The sleeve plate (22) is elastically connected to the sleeve frame (21) via the spring 1 (16).

7. The cast iron engine front end cover quick-release assembly according to claim 1, characterized in that: The electric disassembly end (3) comprises a support frame (31), a support seat (32), a motor (33) and a disassembly end (34), wherein the support frame (31) is fixed to the outer end of the sleeve plate (22), the support seat (32) is fixed to the top of the support frame (31) and supports the motor (33) fixed on the top, the disassembly end (34) is detachably sleeved inside the support seat (32), and the top of the disassembly end (34) is fixedly connected to the output shaft of the motor (33), and the bottom of the disassembly end (34) is a sleeve adapted to fit a hexagonal bolt, and a magnet is embedded in the sleeve.

8. The cast iron engine front end cover quick-release assembly according to claim 1, characterized in that: A through hole (11) is provided on the front of the assembly frame (1), and one end of the negative pressure suction component (5) is communicated with the grabbing component (4) through the through hole (11). The grabbing component (4) includes a fixed cylinder (41), a second spring (42), a movable shaft (43) and a suction cup (44). The fixed cylinder (41) is communicated with the through hole (11), one end of the second spring (42) is fixed in the fixed cylinder (41), and the other end is fixedly connected to the movable shaft (43). The suction cup (44) is fixed to the bottom of the movable shaft (43), and an air hole (17) is provided inside the movable shaft (43), and the air hole (17) is communicated with the suction cup (44).

9. The cast iron engine front end cover quick-release assembly according to claim 8, characterized in that: The negative pressure suction assembly (5) comprises a vacuum pump (51), a control valve (52) and an intermediate tube (53). The front of the assembly frame (1) is fixedly connected to a bracket (6). The vacuum pump (51) is fixed in the bracket (6) via a bottom plate. The control valve (52) is in communication with the suction end of the vacuum pump (51). One suction end of the control valve (52) is in communication with the intermediate tube (53). The intermediate tube (53) is in communication with the through hole (11). The other end of the control valve (52) is in communication with a bypass hose (7). The end of the bypass hose (7) is detachably provided with a filter portion.

10. A method for disassembling a cast iron engine front end cover quick-release assembly according to any one of claims 1 to 9, characterized in that: The disassembly steps include: The first step: preset processing, according to the model of the corresponding engine front end cover, push the adjustable assembly part (2) to swing, and control the movement of the sleeve plate (22), driving the electric disassembly end (3) at the end of the sleeve plate (22) to move, so that the position of each group of electric disassembly ends (3) conforms to the bolt position of the front end cover of the engine of this model; Step 2: After the preset processing, for the designated engine front end cover, the grabbing assembly (4) on the assembly frame (1) is made to contact the front end cover, and while the grabbing assembly (4) is compressed, each set of electric disassembly ends (3) is sleeved on the outside of the bolt, completing the positioning preparation; Step 3: Start each group of electric disassembly terminals (3), and simultaneously remove all bolts and fix them on the electric disassembly terminals (3); Step 4: Simultaneously start the negative pressure suction assembly (5) so that the grabbing assembly (4) is adsorbed and fixed on the front end cover, and when the bolts are removed and the assembly frame (1) is moved out, the front end cover that is adsorbed and grabbed is directly driven to be removed, thus completing the quick disassembly.