A marine diesel engine assembly system

Abstract

This invention discloses a marine diesel engine assembly system in the field of diesel engine assembly technology, comprising: a moving device, a loading station, a chassis mounting station, a cylinder head mounting station, a crankshaft mounting station, a fuel system mounting station, an ignition system mounting station, a cooling system mounting station, and a testing station; the moving device includes a mounting base, the top of which is provided with a support and a drive mechanism, and the bottom of which is provided with a kit, within which a support block and a support spring are slidably inserted, and the bottom of the support block is provided with rollers; the kit contains a support component for restricting the support block from moving inward into the kit; in this application, when some rollers are placed in the recessed area, a portion of the connecting rod moves out of the receiving slot, the power supply to the electromagnet is turned on, causing the stop block above the support block to be forced to move outward into the receiving slot, thereby restricting the connecting rod from moving inward into the receiving slot and reducing the probability of a large tilt between the mounting base and the support.

Description

Technical Field

[0001] This invention relates to the field of diesel engine assembly technology, specifically to a marine diesel engine assembly system. Background Technology

[0002] During the assembly process of a diesel engine, it needs to go through a series of processing steps (such as chassis installation, cylinder head installation, crankshaft installation, fuel system installation, etc.). In order to facilitate the movement of the assembled diesel engine to various processing stations, a mobile device is generally used (such a mobile device is disclosed in the publication document CN107756318B, which discloses a large diesel engine mobile assembly system and assembly method).

[0003] However, this mobile device has certain limitations. Because a spring seat is installed between the base plate and the casters, when there is a depression in the area where the mobile device stops (i.e., when a small portion of the casters are in the depression), the spring seat will cause the casters to move down and contact the depression in the ground. This reduces the compression of the spring seat, thereby reducing the supporting force of the spring seat and casters on the base plate. When the base plate is pressed at this point, it is prone to tilting (pressing refers to the pressure exerted on the base plate by assembly tools or parts placed on it), which affects the stability of the mobile device. Summary of the Invention

[0004] The purpose of this invention is to provide a marine diesel engine assembly system to solve the problem mentioned in the background art, where a spring seat is installed between the base plate and the caster. When a depression occurs in the area where the moving device stops, the caster will move down and contact the depression in the ground due to the action of the spring seat, resulting in a reduction in the compression of the spring seat. This reduces the supporting force of the spring seat and caster on the base plate, making the base plate prone to tilting when pressed in this area.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a marine diesel engine assembly system, comprising: a moving device, a loading station, a chassis installation station, a cylinder head installation station, a crankshaft installation station, a fuel system installation station, an ignition system installation station, a cooling system installation station, and a testing station;

[0006] The mobile device is used to place the diesel engine chassis and move it to various workstations. It includes a mounting base, a support on the top of the mounting base and a drive mechanism for driving the support to rise and fall, a kit at the bottom of the mounting base, a support block and a support spring connected to the support block slidably inserted in the kit, a roller at the bottom of the support block, and a support component for restricting the support block from moving into the kit.

[0007] The loading station is used to install the diesel engine chassis onto the mobile device. The chassis installation station is used to install the intake manifold and exhaust manifold. The cylinder head installation station is used to install the cylinder head, valves, throttle body, and fuel injector. The crankshaft installation station is used to install the crankshaft, piston, and connecting rod. The fuel system installation station is used to install the fuel pump and fuel injector. The ignition system installation station is used to install the ignition plug and ignition coil. The cooling system installation station is used to install the radiator and water pump. The testing station is used to test the assembled diesel engine.

[0008] Preferably, a connector is mounted on the top of the kit, and the connector is rotatably mounted on the bottom of the mounting base.

[0009] Preferably, the support assembly includes a connecting rod connected to the kit, and a storage slot is provided on the top of the support block. The connecting rod is slidably inserted into the storage slot, and the moving direction of the connecting rod is the same as the moving direction of the support block. Several sets of storage slots are sequentially provided on the side wall of the connecting rod from top to bottom. A stop block is slidably inserted into the storage slot, and a magnetic block is provided on the inner end of the stop block. An electromagnet for attracting or repelling the magnetic block is provided in the storage slot.

[0010] Preferably, the connecting rod includes a mounting rod and a movable block. The bottom end of the mounting rod has a mounting groove, the movable block is slidably inserted into the mounting groove, the top end of the movable block has a mounting block, the mounting block has a connecting groove, the side wall of the mounting block has a mounting port for communicating with the connecting groove, a limit block is slidably inserted into the mounting port, and the connecting groove is connected to an air pump.

[0011] Preferably, the mounting rod includes a movable rod with a slot at its top end. A movable rod for connecting with the kit is slidably inserted into the slot, and the movable rod is provided with a locking mechanism for fixing the movable rod.

[0012] Preferably, the slot is connected to a gas conveying device.

[0013] Preferably, the kit includes two detachably connected sub-kits, and the support block includes two detachably connected blocks.

[0014] Preferably, the top of the support is provided with a flipping component.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: When some rollers are placed in the recessed area, the support spring expands, causing the support block and rollers to move down, moving part of the connecting rod out of the take-up slot, turning on the power of the electromagnet, and causing the stop block above the support block to be forced to move outward of the take-up slot, thereby restricting the connecting rod from moving into the take-up slot, reducing the probability of the support block moving significantly into the kit, and thus reducing the probability of the mounting base and support tilting significantly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly system of the present invention;

[0017] Figure 2 This is a schematic diagram of the mobile device structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the connection structure between the kit and the support block of the present invention;

[0019] Figure 4 This is a schematic diagram of the connection structure between the connecting rod and the support block of the present invention;

[0020] Figure 5 This is a schematic diagram of the connecting rod structure of the present invention;

[0021] Figure 6 This is an enlarged schematic diagram of the structure at point A of the present invention.

[0022] In the diagram: 1. Mounting base; 2. Support; 3. Flip assembly; 4. Kit; 41. Sub-kit; 5. Support block; 51. Block; 6. Roller; 7. Support spring; 8. Connecting rod; 81. Mounting rod; 811. Moving rod; 812. Slot; 813. Movable rod; 814. Locking mechanism; 82. Movable block; 83. Mounting slot; 84. Mounting block; 85. Limiting block; 9. Stop block; 10. Storage slot; 11. Electromagnet; 12. Connecting base. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1

[0025] Please see Figure 1 A marine diesel engine assembly system includes: a moving device, a loading station, a chassis installation station, a cylinder head installation station, a crankshaft installation station, a fuel system installation station, an ignition system installation station, a cooling system installation station, and a testing station.

[0026] Please see Figure 1 The chassis mounting station is used to install the intake and exhaust pipes. Specifically, it is used to install the exhaust and intake pipes and connect the chassis to the transmission system of other components.

[0027] Please see Figure 1The cylinder head mounting station is used to install the cylinder head, valves, throttle body, and fuel injectors. Specifically, first place the cylinder head on the chassis and ensure a tight connection with the cylinder liner. Then, install the valves, throttle body, and fuel injectors step by step. During the installation process, pay attention to the position and installation sequence of each component.

[0028] Please see Figure 1 The crankshaft installation station is used to install the crankshaft, piston, and connecting rod. Specifically, the crankshaft is one of the core components of a diesel engine, and its installation requires special care. First, place the crankshaft on the chassis and ensure it is connected to the connecting rod. Then, install each connecting rod and piston step by step. During the installation process, pay attention to the fit between the crankshaft and the connecting rod and ensure that it can rotate smoothly.

[0029] Please see Figure 1 The fuel system installation station is used to install the fuel pump and injectors. Specifically, the fuel system of a diesel engine includes components such as the fuel pump and injectors. Before installing the fuel system, the fuel tank needs to be placed on the chassis and connected to the fuel pump. Then, the injectors are installed step by step, and the injection volume and injection angle of the injectors are adjusted.

[0030] Please see Figure 1 The ignition system installation station is used to install ignition plugs and ignition coils. Specifically, the ignition system of a diesel engine includes components such as ignition plugs and ignition coils. Before installing the ignition system, the ignition coil needs to be placed on the chassis and connected to the ignition plug. Then, other ignition system components are installed step by step, and the spark gap of the ignition plug is adjusted.

[0031] Please see Figure 1 The cooling system installation station is used to install the radiator and water pump. Specifically, the cooling system of a diesel engine includes components such as the radiator and water pump. Before installing the cooling system, the radiator needs to be placed on the chassis and connected to the water pump. Then, other cooling system components are installed step by step, ensuring that the cooling system can work properly.

[0032] Please see Figure 1 The testing station is used to inspect the assembled diesel engine. Specifically, after the diesel engine is assembled, it needs to be tested and debugged. First, static testing is carried out to check whether the installation of each component is correct. Then, dynamic testing is carried out to check whether the working performance of the diesel engine meets the requirements. During the testing and debugging process, safety should be taken into account to avoid accidents.

[0033] It should be noted that the installation sequence of the diesel engine is the order in which the above steps are performed, and the assembly method of the diesel engine is existing technology and will not be described in detail here. Furthermore, the equipment used in each assembly step is also existing technology.

[0034] Please see Figure 1 The loading station is used to install the diesel engine chassis onto the mobile device.

[0035] Please see Figure 1 , Figure 2 and Figure 4 The mobile device includes a mounting base 1, a drive mechanism (such as an electric telescopic rod) on the top of the mounting base 1, a support 2 on the moving end of the drive mechanism, a kit 4 at the bottom of the mounting base 1, a support block 5 slidably inserted in the kit 4, a support spring 7 between the kit 4 and the support block 5, and a roller 6 at the bottom of the support block 5.

[0036] In this embodiment, as a further optimization, please refer to... Figure 2 The top of the support 2 is provided with a flipping assembly 3, which includes two drive motors. Each drive motor has a clamp plate installed on its output end, and the drive motors are slidably mounted on the support 2, so that the distance between the two drive motors can be adjusted. By moving the drive motors, the two clamp plates are brought together to contact the assembled diesel engine and are fixed to it. Then, the drive motors work to make the clamp plates rotate with the assembled diesel engine, which is used to adjust the angle of the diesel engine. In order to facilitate the movement of the drive motors, a hydraulic telescopic device can be installed above the support 2 to control the movement of the drive motors.

[0037] Working principle: The diesel engine chassis is placed on the support 2 of the moving device, and the roller 6 rolls on the ground, so that the mounting base 1 and the support 2 can move the diesel engine chassis to various processing stations; and the drive mechanism can lift and lower the support 2 to change the height of the diesel engine chassis, and the extension and retraction of the support spring 7 can play a buffering role.

[0038] It should be noted that the outer wall of the support block 5 fits against the inner wall of the kit 4, thus providing a damping effect.

[0039] Please see Figure 4 Kit 4 includes a support assembly;

[0040] Please refer to Figure 4 and Figure 5 The support assembly includes a connecting rod 8, a storage slot is provided on the top of the support block 5, one end of the connecting rod 8 is connected to the kit 4, and the other end of the connecting rod 8 is slidably inserted into the storage slot, and the moving direction of the connecting rod 8 is the same as the moving direction of the support block 5; a number of storage slots 10 are provided on the side wall of the connecting rod 8, and the number of storage slots 10 are arranged sequentially from top to bottom, a stop block 9 is slidably inserted in the storage slot 10, a magnetic block is provided on the inner end of the stop block 9, and an electromagnet 11 is provided in the storage slot 10.

[0041] Working principle: After the moving device moves to the processing station and some of the rollers 6 are in the recessed area, the support spring 7 expands, causing the support block 5 and rollers 6 to move downwards, so that the rollers 6 fit into the recessed area (at this time, the supporting force of the expanded support spring 7 decreases); during the downward movement of the support block 5, a portion of the connecting rod 8 moves out of the receiving slot, and then the power supply of the electromagnet 11 is turned on (that is, when the moving device moves to the processing station and stops moving, the power supply of the electromagnet 11 is turned on), causing the electromagnet 11 to generate magnetic force to discharge the magnetic block, so that the stop block 9 is pushed outwards from the receiving slot 10. The stop block 9 above the support block 5 is forced to move outwards from the receiving slot 10 (the stop block 9 inside the receiving slot cannot move), which is used to limit the movement of the connecting rod 8. The support moves within the slot; when pressure is applied to the mounting base 1 and support 2 (this refers to the area where the support spring 7 is exaggerated), the support block 5 cannot retract significantly into the kit 4, reducing the probability of the mounting base 1 and support 2 tilting significantly (because when the support spring 7 expands, allowing the roller 6 to contact the concave area of ​​the ground, the supporting force of the support spring 7 decreases, which reduces the supporting force on the mounting base 1 and support 2 at this point; when subjected to external pressure, the mounting base 1 and support 2 may tilt; among these, external pressure includes the pressure exerted on the support 2 by placing assembled parts or equipment in this area, and if there are many pieces of equipment or parts with a large weight, if the mounting base 1 and support 2 tilt, the equipment or parts may slip off).

[0042] It should be noted that when the diesel engine completes an assembly step and needs to be moved to the next processing station, the direction of the current flowing through the electromagnet 11 is changed, causing a change in the magnetic poles of its magnetic force. As a result, an attraction is generated between the electromagnet 11 and the magnetic block, which is used to completely retract the stop block 9 into the receiving slot 10, allowing the connecting rod 8 to move normally into the receiving slot. After the moving device is moved to a station, the power supply to the electromagnet 11 is turned on, causing it to repel the magnetic block. When the moving device needs to move to the next station, the direction of the current flowing through the electromagnet 11 is changed, causing the electromagnet 11 to attract the magnetic block. This process is repeated in this manner.

[0043] In this embodiment, as a further optimization, please refer to... Figure 3 and Figure 4 The top of the kit 4 is equipped with a connecting seat 12, which is rotatably mounted on the bottom of the mounting base 1. By rotating the connecting seat 12 on the bottom of the mounting base 1, the roller 6 can rotate and change its angle.

[0044] In this embodiment, as a further optimization, please refer to... Figure 5 and Figure 6The connecting rod 8 includes a mounting rod 81 and a movable block 82. The top end of the mounting rod 81 is connected to the kit 4. The bottom end of the mounting rod 81 is provided with a mounting groove 83. The movable block 82 is slidably inserted into the mounting groove 83. The top end of the movable block 82 is provided with a mounting block 84. A connecting groove is provided in the mounting block 84. An installation port is provided on the side wall of the mounting block 84. The installation port communicates with the connecting groove. A limit block 85 is slidably inserted into the installation port. An air pump is connected to the connecting groove.

[0045] It should be noted that when the diesel engine chassis is placed on the support 2 (during the loading process), the support 2 and the mounting base 1 are compressed, which causes the support spring 7 to compress. At this time, the support block 5 will move into the kit 4, causing the movable block 82 to move into the mounting groove 83. After the diesel engine chassis is fully installed on the support 2, the power of the air pump is turned on, and air is supplied into the connecting groove, increasing the internal air pressure. This pushes the limiting block 85 outward from the mounting opening, so that the limiting block 85 fits against the inner wall of the mounting groove 83, fixing the movable block 82 and preventing it from moving up and down within the mounting groove 83. During the process of the support spring 7 moving the support block 5 downward, the connecting rod 8 can move normally outward from the retraction groove, ensuring the function of the support assembly.

[0046] It should be noted that the limit block 85 and the mounting port are sealed to prevent air leakage.

[0047] In this embodiment, as a further optimization, please refer to... Figure 4 and Figure 5 The mounting rod 81 includes a movable rod 811, with a slot 812 at the top of the movable rod 811. A movable rod 813 is slidably inserted into the slot 812, and the top of the movable rod 813 is connected to the kit 4. The stop block 9 is located on the movable rod 811. During the use of the moving device, if the roller 6 moves to the protruding area or the weight above the support 2 increases, causing the support spring 7 to compress, the movable rod 813 slides into the slot 812, so that the support block 5 can move and retract into the kit 4 without being affected.

[0048] In this embodiment, as a further optimization, please refer to... Figure 5The movable rod 811 is equipped with a locking mechanism 814 (the locking mechanism 814 includes an electric telescopic rod, and a limit plate is installed on the movable end of the electric telescopic rod. The side of the limit plate away from the electric telescopic rod is in contact with the side wall of the movable rod 813. When the electric telescopic rod is working, the limit plate is tightly in contact with the side wall of the movable rod 813, fixing the movable rod 813 so that it will not move). When the movable device is not in use, the locking mechanism 814 is working, fixing the movable rod 813 and putting the mounting rod 81 in its longest state. That is, the mounting rod 81 cannot extend further at this time, it can only retract. After the movable block 82 is fixed (that is, after the diesel engine chassis is placed on the support 2), the restriction of the movable rod 813 by the locking mechanism 814 is released.

[0049] In this embodiment, as a further optimization, please refer to... Figure 5 The slot 812 is connected to an air supply device (such as an air pump). The movable rod 813 and the slot 812 are sealed to prevent air leakage. When the moving device is not in use, air is injected into the slot 812 to increase the internal air pressure, which pushes the movable rod 813 upward, so that the mounting rod 81 is in its longest position. After the mounting rod 81 is reset, the movable rod 813 is fixed by the locking mechanism 814.

[0050] In this embodiment, as a further optimization, please refer to... Figure 3 The kit 4 includes two detachably connected sub-kits 41, and the support block 5 includes two detachably connected blocks 51; so that the kit 4 can be separated into two parts, and the support block 5 can also be separated into two parts, for opening the interior of the kit 4 and the support block 5 to replace or repair the components installed inside; and the detachable connection can be made by bolts or other connections.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A marine diesel engine assembly system, characterized by: include: Mobile device, loading station, chassis installation station, cylinder head installation station, crankshaft installation station, fuel system installation station, ignition system installation station, cooling system installation station, and testing station; The mobile device is used to place the diesel engine chassis and move it to various work stations. It includes a mounting base (1), a support (2) on the top of the mounting base (1) and a drive mechanism for driving the support (2) to rise and fall, a kit (4) on the bottom of the mounting base (1), a support block (5) and a support spring (7) connected to the support block (5) are slidably inserted in the kit (4), a roller (6) is provided at the bottom of the support block (5), and a support component for restricting the support block (5) from moving into the kit (4) is provided in the kit (4). The loading station is used to install the diesel engine chassis onto the mobile device; the chassis installation station is used to install the intake manifold and exhaust manifold; the cylinder head installation station is used to install the cylinder head, valves, throttle body, and fuel injector; the crankshaft installation station is used to install the crankshaft, piston, and connecting rod; the fuel system installation station is used to install the fuel pump and fuel injector; the ignition system installation station is used to install the ignition plug and ignition coil; the cooling system installation station is used to install the radiator and water pump; and the testing station is used to test the assembled diesel engine. The support assembly includes a connecting rod (8) connected to the kit (4). A storage slot is provided on the top of the support block (5). The connecting rod (8) is slidably inserted into the storage slot. The moving direction of the connecting rod (8) is the same as the moving direction of the support block (5). Several sets of storage slots (10) are provided on the side wall of the connecting rod (8) from top to bottom. A stop block (9) is slidably inserted in the storage slot (10). A magnetic block is provided on the inner end of the stop block (9). An electromagnet (11) for attracting or repelling the magnetic block is provided in the storage slot (10). The connecting rod (8) includes a mounting rod (81) and a movable block (82). The bottom end of the mounting rod (81) is provided with a mounting groove (83). The movable block (82) is slidably inserted into the mounting groove (83). The top end of the movable block (82) is provided with a mounting block (84). The mounting block (84) is provided with a connecting groove. The side wall of the mounting block (84) is provided with a mounting port for communicating with the connecting groove. A limit block (85) is slidably inserted into the mounting port. The connecting groove is connected to an air pump. The mounting rod (81) includes a movable rod (811), the top end of the movable rod (811) is provided with a slot (812), a movable rod (813) for connecting with the kit (4) is slidably inserted in the slot (812), and a locking mechanism (814) for fixing the movable rod (813) is provided on the movable rod (811). The slot (812) is connected to a gas transmission device.

2. A marine diesel engine assembly system according to claim 1, characterised in that: The top of the kit (4) is fitted with a connector (12), which is rotatably mounted on the bottom of the mounting base (1).

3. A marine diesel engine assembly system according to claim 1, characterised in that: The kit (4) includes two detachably connected sub-kits (41), and the support block (5) includes two detachably connected blocks (51).

4. The marine diesel engine assembly system according to claim 1, characterized in that: The support (2) is provided with a flipping component (3) on its top.

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