A diesel engine air cooler assembly and disassembly device

Abstract

The present invention belongs to the technical field of diesel engines, and discloses a diesel engine air cooler assembly and disassembly device, which is used to assemble or disassemble the air cooler from the diesel engine. The diesel engine air cooler assembly and disassembly device includes a fixed bracket, a rolling assembly, a driving assembly and a lifting device, wherein the fixed bracket is detachably connected to the diesel engine; the rolling assembly is rollingly connected to the fixed bracket, and the rolling assembly is used to connect to the air cooler; the driving assembly is connected to the rolling assembly, and the driving assembly and the air cooler are respectively located on both sides of the rolling assembly, and the driving assembly can drive the rolling assembly to approach or move away from the diesel engine; the lifting device is used to lift the air cooler. The diesel engine air cooler assembly and disassembly device is convenient for assembling, disassembling, maintaining or replacing the air cooler, can effectively save manpower and material resources, has high assembly and disassembly efficiency, and can effectively avoid damaging the structure of the air cooler during the process of assembling or disassembling the air cooler from the diesel engine.

Description

Technical Field

[0001] The invention relates to the technical field of diesel engines, and in particular to an assembly and disassembly device for a diesel engine air cooler. Background Art

[0002] In order to improve the performance of marine diesel engines, the compressed fresh air must be cooled through an air cooler, so the air cooler becomes one of the important components of marine diesel engines. The air cooler mainly includes an air cooler housing and an air cooler core arranged in the air cooler housing.

[0003] In an existing diesel engine, an air cooler is installed transversely in the diesel engine. For an existing air cooler installed transversely in a diesel engine, a lifting device is usually used to drag and lift the air cooler from the diesel engine. However, this disassembly and assembly method requires a lot of manpower and material resources, takes a long time to assemble and disassemble, has low efficiency, and has the risk of damaging the structure of the air cooler during the assembly and disassembly process. Summary of the invention

[0004] The purpose of the present invention is to provide a diesel engine air cooler assembly and disassembly device to solve the problems in the prior art that when assembling and disassembling the air cooler to the diesel engine, it takes a lot of manpower and material resources, the assembly and disassembly time is long, the assembly and disassembly efficiency is low, and the structure of the air cooler is easily damaged during the assembly and disassembly process.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A diesel engine air cooler assembly and disassembly device, used for assembling or disassembling the air cooler from the diesel engine, comprising:

[0007] A fixing bracket, the fixing bracket being detachably connected to the diesel engine;

[0008] A rolling assembly, the rolling assembly is rollingly connected to the fixed bracket, and the rolling assembly is used to be connected to the air cooler;

[0009] A driving assembly, wherein the driving assembly is connected to the rolling assembly, and the driving assembly and the air cooler are respectively located on both sides of the rolling assembly, and the driving assembly can drive the rolling assembly to approach or move away from the diesel engine;

[0010] A lifting device is used to lift the air cooler.

[0011] Preferably, the fixed bracket is provided with a track, the rolling assembly includes a connecting frame and a roller group rotatably connected to the connecting frame, the roller group rolls on the track, the connecting frame is connected to the driving assembly, and the connecting frame is used to connect to the air cooler.

[0012] Preferably, the connecting frame includes a first connecting part and a second connecting part connected to the first connecting part, the first connecting part is provided with a first through hole, the air cooler is provided with a threaded hole, the connecting member passes through the first through hole and is screwed to the threaded hole, and the roller group is rotatably connected to the second connecting part.

[0013] Preferably, the air cooler is provided with a pipe joint, and the first connecting portion is further provided with a second through hole, and the pipe joint can pass through the second through hole, so that the first connecting portion is completely fitted with the side wall of the air cooler.

[0014] Preferably, the first connecting portion is provided with a first release buckle, and the driving assembly is detachably connected to the first release buckle.

[0015] Preferably, the fixing bracket is provided with two limiting structures spaced apart along the extension direction of the track, and the roller assembly can abut against any one of the limiting structures.

[0016] Preferably, the number of the roller groups and the number of the tracks are both two, and the two roller groups and the two tracks are arranged in one-to-one correspondence and respectively roll on the corresponding tracks.

[0017] Preferably, the lifting device comprises a lifting machine and a lifting bracket, the lifting bracket is used to be connected to the air cooler, and the hook of the lifting machine is used to be connected to the lifting bracket.

[0018] Preferably, the lifting bracket is provided with a second release buckle, and the hook of the lifting machine is used to be connected to the second release buckle.

[0019] Preferably, the number of the lifting brackets is two, and the two lifting brackets are spaced apart along the width direction of the air cooler and are both detachably connected to the air cooler.

[0020] Beneficial effects of the present invention:

[0021] The present invention provides a diesel engine air cooler assembly and disassembly device, which is used to assemble or disassemble the air cooler from the diesel engine. Specifically, when the air cooler needs to be disassembled from the diesel engine, first assemble the fixed bracket to the housing of the diesel engine, then roll the rolling assembly to connect to the fixed bracket, then connect the rolling assembly to one end of the air cooler along the length direction, connect the driving assembly to the rolling assembly, the driving assembly drives the rolling assembly away from the diesel engine, thereby driving the air cooler connected to the rolling assembly away from the diesel engine, after the driving assembly drives the air cooler partly away from the diesel engine along the length direction of the air cooler, then assemble the lifting device to the air cooler, after the driving assembly drives the air cooler to completely separate from the diesel engine, the air cooler is disassembled from the rolling assembly. , the lifting device lifts the air cooler away from the diesel engine to complete the removal of the air cooler from the diesel engine; when the air cooler needs to be assembled on the diesel engine, the air cooler is first lifted onto the rolling assembly by the lifting device, and then the rolling assembly is connected to one end of the air cooler, and the driving assembly drives the rolling assembly close to the diesel engine. When the air cooler is partially located in the diesel engine, the lifting device is removed, and the driving assembly continues to drive the rolling assembly close to the diesel engine until the rolling assembly completely pushes the air cooler into the diesel engine, and then the rolling assembly is removed from the air cooler, and then the air cooler is connected to the diesel engine through the connecting piece to complete the assembly of the air cooler to the diesel engine. In this way, the assembly and disassembly device of the diesel engine air cooler is convenient for assembly, disassembly, maintenance or replacement of the air cooler, which can effectively save manpower and material resources, and has high assembly and disassembly efficiency, and can effectively avoid damaging the structure of the air cooler during the assembly or disassembly of the air cooler to the diesel engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a rolling assembly of a diesel engine air cooler assembly and disassembly device provided by a specific embodiment of the present invention;

[0023] Figure 2 It is a structural schematic diagram of a diesel engine air cooler assembly and disassembly device provided by a specific embodiment of the present invention, in which the air cooler is partially pulled out of the diesel engine;

[0024] Figure 3 It is a structural schematic diagram of a diesel engine air cooler assembly and disassembly device provided by a specific embodiment of the present invention pushing the air cooler into the diesel engine;

[0025] Figure 4 It is a structural schematic diagram of a fixing bracket of a diesel engine air cooler provided by a specific embodiment of the present invention;

[0026] Figure 5 It is a structural schematic diagram of a lifting bracket of a diesel engine air cooler provided by a specific embodiment of the present invention.

[0027] In the figure:

[0028] 10. Air cooler; 101. Pipeline joint;

[0029] 20. Diesel engine;

[0030] 1. Fixed bracket; 11. Track; 12. Third through hole;

[0031] 2. rolling assembly; 21. connecting frame; 211. first connecting portion; 2111. first through hole; 2112. second through hole; 2113. first release buckle; 212. second connecting portion; 22. roller assembly;

[0032] 3. Lifting bracket; 31. Second release buckle; 32. Fourth through hole. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] The present invention provides a diesel engine air cooler assembly and disassembly device, such as Figure 1-3 As shown, the assembly and disassembly device of the diesel engine air cooler is used to assemble or disassemble the air cooler 10 to the diesel engine 20. The assembly and disassembly device of the diesel engine air cooler includes a fixed bracket 1, a rolling assembly 2 and a driving assembly. The fixed bracket 1 is detachably connected to the diesel engine 20; the rolling assembly 2 is rollingly connected to the fixed bracket 1, and the rolling assembly 2 is used to be connected to the air cooler 10; the driving assembly is connected to the rolling assembly 2, and the driving assembly and the air cooler 10 are respectively located on both sides of the rolling assembly 2, and the driving assembly can drive the rolling assembly 2 to approach or move away from the diesel engine 20; the lifting device is used to lift the air cooler 10.

[0038] Specifically, Figure 1-3 As shown, when the air cooler 10 needs to be detached from the diesel engine 20, the fixed bracket 1 is first assembled to the housing of the diesel engine 20, and then the rolling assembly 2 is rolled and connected to the fixed bracket 1, and then the rolling assembly 2 is connected to one end of the air cooler 10 along the length direction, and the driving assembly is connected to the rolling assembly 2. The driving assembly drives the rolling assembly 2 away from the diesel engine 20, thereby driving the air cooler 10 connected to the rolling assembly 2 away from the diesel engine 20. After the driving assembly drives the air cooler 10 partially away from the diesel engine 20 along the length direction of the air cooler 10, the lifting device is assembled to the air cooler 10. After the driving assembly drives the air cooler 10 to completely separate from the diesel engine 20, the air cooler 10 is detached from the rolling assembly 2, and the lifting device The air cooler 10 is lifted off the diesel engine 20 to complete the removal of the air cooler 10 from the diesel engine 20; when the air cooler 10 needs to be assembled on the diesel engine 20, the air cooler 10 is first lifted onto the rolling assembly 2 by a lifting device, and then the rolling assembly 2 is connected to one end of the air cooler 10, and the driving assembly drives the rolling assembly 2 close to the diesel engine 20. When the air cooler 10 is partially located in the diesel engine 20, the lifting device is removed, and the driving assembly continues to drive the rolling assembly 2 close to the diesel engine 20 until the rolling assembly 2 completely pushes the air cooler 10 into the diesel engine 20, and then the rolling assembly 2 is removed from the air cooler 10, and then the air cooler 10 is connected to the diesel engine 20 by a connecting piece to complete the assembly of the air cooler 10 on the diesel engine 20. In this way, the diesel engine air cooler assembly and disassembly device facilitates assembly, disassembly, maintenance or replacement of the air cooler 10, which can effectively save manpower and material resources, improve assembly and disassembly efficiency, and effectively avoid damage to the structure of the air cooler 10 during assembly or disassembly of the air cooler 10 to the diesel engine 20. Figure 2 The ab direction is the length direction of the air cooler 10, and the cd direction is the width direction of the air cooler 10. It can be understood that the assembly and disassembly device of the diesel engine air cooler is also suitable for assembling and disassembling other parts.

[0039] Among them, Figure 3 and Figure 4As shown, the fixing bracket 1 is provided with a third through hole 12, and the connecting member passes through the third through hole 12 and is screwed to the housing of the diesel engine 20. In this way, the fixing bracket 1 is detachably connected to the diesel engine 20, wherein the connecting member is a screw. Among them, the number of the third through holes 12 is multiple. It can be understood that the number of the third through holes 12 can be adaptively adjusted according to actual needs.

[0040] Among them, Figure 1-4 As shown, the fixed bracket 1 is provided with a track 11, the rolling assembly 2 includes a connecting frame 21 and a roller group 22 rotatably connected to the connecting frame 21, the roller group 22 rolls on the track 11, the connecting frame 21 is connected to the driving assembly, and the connecting frame 21 is used to connect to the air cooler 10. With such arrangement, when the air cooler 10 needs to be detached from the diesel engine 20, the fixing bracket 1 is first assembled on the housing of the diesel engine 20, and then the roller assembly 22 is rollingly connected to the fixing bracket 1, and then the connecting frame 21 is connected to the air cooler 10, wherein the connecting frame 21 is connected to one end of the air cooler 10 along the length direction, the driving component is connected to the connecting frame 21, and the driving component drives the connecting frame 21 to move, thereby driving the air cooler 10 connected to the connecting frame 21 away from the diesel engine 20. After the driving component drives the air cooler 10 partially away from the diesel engine 20 along the length direction of the air cooler 10, the lifting device is assembled on the air cooler 10. After the driving component drives the air cooler 10 to completely separate from the diesel engine 20, the air cooler 10 is detached from the rolling component 2, and the lifting device lifts the air cooler 1 0 is lifted off the diesel engine 20 to complete the removal of the air cooler 10 from the diesel engine 20; when the air cooler 10 needs to be assembled to the diesel engine 20, the air cooler 10 is first lifted onto the rolling assembly 2 by the lifting device, and then the connecting frame 21 is connected to the shell of the air cooler 10, wherein the connecting frame 21 is connected to one end of the air cooler 10 along the length direction, and the driving assembly drives the connecting frame 21 to approach the diesel engine 20. When the air cooler 10 is partially located in the diesel engine 20, the lifting device is removed, and the driving assembly continues to drive the rolling assembly 2 to approach the diesel engine 20 until the rolling assembly 2 completely pushes the air cooler 10 into the diesel engine 20, and then the rolling assembly 2 is removed from the air cooler 10, and then the air cooler 10 is connected to the diesel engine 20 by the connecting piece to complete the assembly of the air cooler 10 to the diesel engine 20. Thus, the air cooler 10 can be smoothly detached from or assembled to the diesel engine 20 through the roller set 22 and the track 11, and manpower and material resources can be effectively saved, the assembly and disassembly efficiency is high, and the structure of the air cooler 10 can be effectively avoided from being damaged during the assembly or disassembly of the air cooler 10 to the diesel engine 20. It can be understood that the extension direction of the track 11 is parallel to the length direction of the air cooler 10.

[0041] The fixed bracket 1 is provided with two limiting structures spaced apart along the extension direction of the track 11, and the roller group 22 can abut against any one of the limiting structures. Specifically, the two limiting structures are respectively located near the two ends of the track 11 (not shown in the figure), wherein the two limiting structures are respectively a first limiting structure and a second limiting structure, the first limiting structure is away from the diesel engine 20 relative to the second limiting structure, when the driving component drives the connecting frame 21 away from the diesel engine 20 and completely detaches from the diesel engine 20, the roller group 22 abuts against the first limiting structure to limit the moving range of the roller group 22 along the extension direction of the track 11, and prevent the roller group 22 from detaching from the track 11; when the driving component drives the connecting frame 21 to completely push the air cooler 10 into the assembly position in the diesel engine 20, the roller group 22 abuts against the second limiting structure, thereby preventing the driving component from driving the connecting frame 21 too close to the diesel engine 20 along the extension direction of the track 11, thereby preventing the air cooler 10 from hitting or even damaging the internal structure of the diesel engine 20.

[0042] Specifically, the limiting structure is two end surfaces on the fixing bracket 1 located at both ends of the extension direction of the track 11 , or the limiting structure is two limiting protrusions connected to both ends of the track 11 detachably or non-detachably.

[0043] Specifically, Figure 2-4 As shown, there are two roller groups 22 and two tracks 11, and the two roller groups 22 and the two tracks 11 are arranged one by one and roll on the corresponding tracks 11. In this way, the rolling assembly 2 is stably connected to the fixed bracket 1 by rolling, thereby ensuring the stability of the driving assembly driving the connecting frame 21 to move along the extension direction of the track 11, and further ensuring the stability of the air cooler 10 to move along the extension direction of the track 11.

[0044] Among them, Figure 1-3 As shown, the connecting frame 21 includes a first connecting portion 211 and a second connecting portion 212 connected to the first connecting portion 211, the first connecting portion 211 is provided with a first through hole 2111, the air cooler 10 is provided with a threaded hole, the connecting member passes through the first through hole 2111 and is screwed to the threaded hole, and the roller group 22 is rotatably connected to the second connecting portion 212. In this way, the first connecting portion 211 and the air cooler 10 are detachably connected through the connecting member, so that it is convenient for the driving assembly to drive the air cooler 10 to approach or move away from the diesel engine 20 along the extension direction of the track 11. Specifically, the connecting member is a screw.

[0045] Specifically, the roller group 22 includes a plurality of rollers. In this way, redundant protection is formed. It can be understood that the plurality of rollers are rotatably connected to the second connection portion 212, and the rollers are independent of each other and do not affect each other. Even if one roller in the roller group 22 fails, the other rollers can still work normally, thereby ensuring the reliability of the rolling assembly 2. In this embodiment, each roller group 22 includes two rollers.

[0046] Specifically, the first connection portion 211 and the second connection portion 212 of the connection frame 21 are welded to form, thereby ensuring the structural strength of the connection frame 21. In other embodiments, the first connection portion 211 and the second connection portion 212 of the connection frame 21 may also be connected by bolts, or by riveting.

[0047] Specifically, Figure 1-3 As shown, the air cooler 10 is provided with a pipe joint 101, and the first connecting portion 211 is further provided with a second through hole 2112, and the pipe joint 101 can pass through the second through hole 2112, so that the first connecting portion 211 is completely fitted with the side wall of the air cooler 10. Specifically, the first connecting portion 211 is made of a plate material, and is arranged in this way so that the first connecting portion 211 is completely fitted with the side wall of the air cooler 10, so that it is convenient to connect the shell of the air cooler 10 and the first connecting portion 211 through a connecting piece, and at the same time, it can also ensure that the length direction of the air cooler 10 is parallel to the extension direction of the track 11, so that the driving assembly drives the air cooler 10 to approach or move away from the diesel engine 20 along the extension direction of the track 11.

[0048] Among them, Figure 1-3 As shown, the first connection part 211 is provided with a first release buckle 2113, and the driving assembly is detachably connected to the first release buckle 2113. Specifically, the driving assembly includes a motor and a transmission mechanism, the output shaft of the motor is fixedly connected to the input shaft of the transmission mechanism, and the output shaft of the transmission mechanism is connected to the first release buckle 2113 through a rope. Thus, the driving assembly drives the rolling assembly 2 to move along the extension direction of the track 11, thereby driving the air cooler 10 to move closer to or away from the diesel engine 20 along the extension direction of the track 11. Among them, the transmission mechanism is a gear transmission mechanism or a pulley transmission mechanism.

[0049] Among them, Figure 2 and Figure 5As shown, the lifting device includes a lifting machine and a lifting bracket 3, the lifting bracket 3 is used to be connected to the air cooler 10, and the hook of the lifting machine is used to be connected to the lifting bracket 3. Specifically, in the process of detaching the air cooler 10 from the diesel engine 20, after the driving component drives the air cooler 10 to partially extend out of the diesel engine 20 along the extension direction of the track 11, the lifting bracket 3 is detachably connected to the shell of the air cooler 10 through a connecting piece, and the hook of the lifting machine is connected to the lifting bracket 3, and then the air cooler 10 is driven by the driving component to continue to move away from the diesel engine 20 along the extension direction of the track 11 until the air cooler 10 is completely separated from the diesel engine 20, and the air cooler 10 is detached from the first connection portion 211 of the connecting frame 21, and then the air cooler 10 is lifted by the lifting machine to detach the air cooler 10 from the diesel engine 20; after the air cooler 10 is detached from the diesel engine 20, the air cooler 10 is detached from the diesel engine 20. During the assembly process on the diesel engine 20, the air cooler 10 is first lifted onto the rolling assembly 2 by a lifting machine, and then the first connecting portion 211 of the connecting frame 21 is connected to the housing of the air cooler 10, and the driving assembly drives the rolling assembly 2 to approach the diesel engine 20. When the air cooler 10 is partially located in the diesel engine 20, the lifting machine and the lifting bracket 3 are detached, and the driving assembly drives the connecting frame 21 to extend into the diesel engine 20 until the air cooler 10 is completely pushed into the assembly position in the diesel engine 20, and then the first connecting portion 211 is detached from the air cooler 10, and then the air cooler 10 is connected to the diesel engine 20 by a connecting piece to complete the assembly of the air cooler 10 to the diesel engine 20. This arrangement facilitates the lifting of the air cooler 10 by a lifting machine.

[0050] Specifically, Figure 2 and Figure 5 As shown, the lifting bracket 3 is provided with a fourth through hole 32, and the connecting member passes through the fourth through hole 32 and is screwed to the shell of the air cooler 10. This is to achieve a detachable connection of the lifting bracket 3 to the air cooler 10, wherein the connecting member is a screw. Among them, the number of the fourth through holes 32 is multiple. It can be understood that the number of the fourth through holes 32 can be adaptively adjusted according to actual needs.

[0051] Specifically, Figure 2 and Figure 5 As shown, the lifting bracket 3 is provided with a second release buckle 31, and the hook of the lifting machine is used to connect with the second release buckle 31. Specifically, the hook of the lifting machine is directly connected with the second release buckle 31, or the hook of the lifting machine is connected to the second release buckle 31 through a rope. In this way, the air cooler 10 can be lifted by the lifting machine.

[0052] Specifically, there are two lifting brackets 3, which are arranged at intervals along the width direction of the air cooler 10 and are both detachably connected to the air cooler 10. By arranging two lifting brackets 3 at intervals along the width direction of the air cooler 10, it can be ensured that the air cooler 10 does not tilt during the process of lifting the air cooler 10, which facilitates the lifting of the air cooler 10 by the crane. It can be understood that the number of lifting brackets 3 can also be increased or decreased according to actual working conditions.

[0053] The second connection portion 212 is provided with at least one fifth through hole. In this embodiment, the second connection portion 212 is provided with two fifth through holes, and the fifth through holes are provided to reduce the weight of the connection frame 21 .

[0054] Among them, the specific structures of the driving assembly and the crane belong to the existing technology and will not be repeated here.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A diesel engine air cooler assembly and disassembly device, used for assembling or disassembling an air cooler (10) to a diesel engine (20), characterized in that: include: A fixing bracket (1), the fixing bracket (1) being detachably connected to the diesel engine (20); A rolling assembly (2), the rolling assembly (2) being rollingly connected to the fixed bracket (1), the rolling assembly (2) being used to be connected to the air cooler (10); a driving assembly, the driving assembly being connected to the rolling assembly (2), and the driving assembly and the air cooler (10) being respectively located on both sides of the rolling assembly (2), and the driving assembly being capable of driving the rolling assembly (2) to move closer to or farther from the diesel engine (20); A lifting device, the lifting device being used to lift the air cooler (10); The fixed support (1) is provided with a track (11), the rolling assembly (2) comprises a connecting frame (21) and a roller group (22) rotatably connected to the connecting frame (21), the roller group (22) rollingly located on the track (11), the connecting frame (21) being connected to the driving assembly, and the connecting frame (21) being used to be connected to the air cooler (10); The fixed bracket (1) is provided with two limiting structures spaced apart along the extension direction of the track (11), and the roller group (22) can abut against any one of the limiting structures; The number of the roller groups (22) and the number of the tracks (11) are both two, and the two roller groups (22) and the two tracks (11) are arranged in a one-to-one correspondence and respectively roll on the corresponding tracks (11).

2. The assembly and disassembly device for a diesel engine air cooler according to claim 1, characterized in that: The connecting frame (21) comprises a first connecting portion (211) and a second connecting portion (212) connected to the first connecting portion (211), the first connecting portion (211) is provided with a first through hole (2111), the air cooler (10) is provided with a threaded hole, a connecting member passes through the first through hole (2111) and is screwed to the threaded hole, and the roller assembly (22) is rotatably connected to the second connecting portion (212).

3. The assembly and disassembly device for a diesel engine air cooler according to claim 2, characterized in that: The air cooler (10) is provided with a pipe joint (101), and the first connecting portion (211) is further provided with a second through hole (2112), and the pipe joint (101) can pass through the second through hole (2112) so that the first connecting portion (211) is completely fitted with a side wall of the air cooler (10).

4. The assembly and disassembly device for a diesel engine air cooler according to claim 2, characterized in that: The first connecting portion (211) is provided with a first detachable buckle (2113), and the driving assembly is detachably connected to the first detachable buckle (2113).

5. The assembly and disassembly device for a diesel engine air cooler according to claim 1, characterized in that: The lifting device comprises a lifting machine and a lifting bracket (3), wherein the lifting bracket (3) is used to be connected to the air cooler (10), and a lifting hook of the lifting machine is used to be connected to the lifting bracket (3).

6. The assembly and disassembly device for a diesel engine air cooler according to claim 5, characterized in that: The lifting bracket (3) is provided with a second release buckle (31), and the lifting hook of the lifting machine is used to be connected to the second release buckle (31).

7. The assembly and disassembly device for a diesel engine air cooler according to claim 5, characterized in that: The number of the lifting brackets (3) is two, and the two lifting brackets (3) are arranged at intervals along the width direction of the air cooler (10) and are both detachably connected to the air cooler (10).

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