A hoisting device for repairing and maintaining a diesel engine

Abstract

The utility model belongs to mechanical engineering technical field, concretely relates to a hoisting equipment for diesel engine maintenance and repair, including hoisting chassis, the longitudinal end surface of hoisting chassis installs control panel, the surface electric connection first motor of control panel, the surface of first motor is installed in the top horizontal end surface of hoisting chassis, and the surface of first motor output end is connected first ball screw. The utility model, through hoisting chassis and its cooperation transmission end displacement block and both sides connecting frame cooperation on the cooperation of first motor and first ball screw, the movement of hoisting rod is oriented and limited, thereby avoids when hoisting diesel engine, the diesel engine is shaken by lifting hook, and then the secondary damage is caused to its surface, in addition, utilizes the cooperation of fixed block and spacing support plate, and it is convenient according to the model of diesel engine to replace the lifting appliance such as adaptive lifting hook, to satisfy the hoisting demand of different diesel engines.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical engineering technology, specifically relating to a hoisting device for diesel engine maintenance. Background Technology

[0002] A diesel engine is an engine that uses diesel fuel to generate energy. It was invented in 1892 by the German inventor Rudolf Diesel. To commemorate this inventor, diesel fuel is named after his surname, Diesel, and the diesel engine is also known as the Diesel engine. Diesel engines, due to their high operating pressure, require high structural strength and rigidity in all related components, making them relatively heavy and large. The fuel injection pumps and nozzles of diesel engines also require high manufacturing precision, resulting in higher costs. Furthermore, diesel engines operate roughly, producing significant vibration and noise; diesel fuel does not evaporate easily, making cold starts difficult in winter. However, the advantages of diesel engines in terms of energy saving and CO2 emissions are irreplaceable by any other heat engine, including gasoline engines, making them "green engines." Diesel engines typically weigh hundreds of kilograms or even more, making manual handling impossible for disassembling, moving, and repositioning them from the vehicle chassis. Furthermore, manual operation can easily lead to engine tilting or collisions, causing component damage and posing significant safety hazards; therefore, lifting equipment is essential. Existing diesel engines are hoisted using equipment such as gantry cranes and electric hoists during maintenance. However, when in use, this structure is affected by the transmission characteristics of the electric hoist, such as the elastic deformation of the wire rope, the delay in braking response, and the shift of the load center of gravity. This can easily cause the hoisted diesel engine to shake, which in turn can cause the diesel engine to collide with surrounding equipment and the ground during the hoisting process, resulting in secondary damage problems such as dents in the engine casing and damage to precision components. Utility Model Content

[0003] The purpose of this utility model is to provide a lifting device for diesel engine maintenance, aiming to solve the problem that existing diesel engines are lifted using gantry cranes and electric hoists during maintenance. However, this structure is easily affected by the transmission characteristics of the electric hoist, such as the elastic deformation of the wire rope, braking response delay, and load center of gravity shift. This can easily cause the lifted diesel engine to shake, leading to collisions between the diesel engine and surrounding equipment and the ground during the lifting process, resulting in secondary damage such as dents in the engine casing and damage to precision components.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a lifting device for diesel engine maintenance, comprising a lifting base frame, a control panel mounted on the longitudinal end surface of the lifting base frame, the control panel surface electrically connected to a first motor, the first motor surface mounted on the top transverse end surface of the lifting base frame, the output end surface of the first motor connected to a first ball screw, the first ball screw surface threadedly connected to a moving block, the other side surface of the first ball screw sleeved in a bearing mounted on the top of the lifting base frame, the moving block slidably connected to the top transverse end surface of the lifting base frame, connecting frames welded to both sides of the moving block, a sliding ball welded to the bottom surface of the connecting frame, the sliding ball surface slidably connected to a sliding groove surface, the sliding groove being formed on the bottom transverse end surface of the lifting base frame, a second motor mounted on the top surface of the connecting frame, the output end surface of the second motor connected to a second ball screw, the other side surface of the second ball screw sleeved in a bearing mounted on the bottom of the connecting frame.

[0005] As a preferred embodiment of the lifting equipment for diesel engine maintenance and repair according to this utility model, the lifting base frame is a U-shaped integrated structure with symmetrical sliding grooves on the horizontal end surface of its bottom.

[0006] As a preferred embodiment of the lifting equipment for diesel engine maintenance according to this utility model, the surface of the moving block is provided with a circular threaded groove, the shape and size of which are adapted to the first ball screw, and the top horizontal end surface of the lifting base is provided with a limiting groove, the shape and size of which are adapted to the moving block.

[0007] As a preferred embodiment of the lifting equipment for diesel engine maintenance according to this utility model, the second ball screw surface is threadedly connected to the lifting rod, the other side surface of the lifting rod is slidably connected to the slide rod surface, the slide rod surface is connected to the connecting frame surface, and the bottom surface of the lifting rod is fixedly connected to the fixing block.

[0008] As a preferred embodiment of the lifting equipment for diesel engine maintenance according to this utility model, a hook is inserted into the surface of the fixing block, a limiting plate is sleeved on the lateral end surface of the hook, the limiting plate is inserted into the bottom groove of the fixing block, and the surface of the fixing block is connected to the surface of the limiting plate by knurled bolts.

[0009] As a preferred embodiment of the lifting equipment for diesel engine maintenance according to this utility model, the bottom horizontal plate of the limiting support plate has a "U"-shaped groove, the shape and size of which are adapted to the longitudinal end surface of the hook.

[0010] Compared with the prior art, the beneficial effects of this utility model are: The movement of the lifting rod is guided and limited by the lifting base frame and the moving block at the transmission end via the first motor and the first ball screw, as well as the connecting frames on both sides. This prevents the hook from causing the diesel engine to shake during lifting, thus avoiding secondary damage to its surface. In addition, the cooperation of the fixing block and the limiting plate makes it easy to change the hook and other lifting tools according to the model of the diesel engine to meet the lifting requirements of different diesel engines. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a schematic diagram of the main cross-sectional structure of this utility model; Figure 5 This is an exploded structural diagram of the hoisting rod and limiting support plate of this utility model.

[0012] In the diagram: 1. Lifting base frame; 2. Control panel; 3. First motor; 4. First ball screw; 5. Moving block; 6. Connecting frame; 7. Sliding ball; 8. Slide groove; 9. Second motor; 10. Second ball screw; 11. Lifting rod; 12. Slide rod; 13. Fixing block; 14. Hook; 15. Limiting plate; 16. Knurled bolt. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-5This utility model provides the following technical solution: a lifting device for diesel engine maintenance, including a lifting base frame 1, a control panel 2 installed on the longitudinal end surface of the lifting base frame 1, a first motor 3 electrically connected to the surface of the control panel 2, the surface of the first motor 3 installed on the top transverse end surface of the lifting base frame 1, a first ball screw 4 connected to the output end surface of the first motor 3, a moving block 5 threadedly connected to the surface of the first ball screw 4, the other side surface of the first ball screw 4 sleeved in a bearing installed on the top of the lifting base frame 1, the moving block 5 slidably connected to the top transverse end surface of the lifting base frame 1, connecting frames 6 welded to both sides of the moving block 5, a sliding ball 7 welded to the bottom surface of the connecting frame 6, the surface of the sliding ball 7 slidably connected to the surface of a sliding groove 8, the sliding groove 8 being opened on the bottom transverse end surface of the lifting base frame 1, a second motor 9 installed on the top surface of the connecting frame 6, a second ball screw 10 connected to the output end surface of the second motor 9, the other side surface of the second ball screw 10 sleeved in a bearing installed at the bottom of the connecting frame 6.

[0015] Preferably, the hoisting base frame 1 is a U-shaped integrated structure with symmetrical sliding grooves 8 on its bottom horizontal end surface.

[0016] In practical use, the "U"-shaped structure at the bottom of the hoisting base 1 makes it more stable when placed on the ground.

[0017] Preferably, a circular threaded groove is formed on the surface of the movable block 5 in the horizontal direction, and its shape and size are adapted to the first ball screw 4. A limiting groove is formed on the top horizontal end surface of the hoisting base 1, and its shape and size are adapted to the movable block 5.

[0018] In actual use, while the first ball screw 4 rotates, the moving block 5 connected to its surface thread moves parallel within the limiting groove at the top of the lifting base 1 until the moving block 5 moves directly above the top of the diesel engine.

[0019] Preferably, the second ball screw 10 is threadedly connected to the lifting rod 11, the other side of the lifting rod 11 is slidably connected to the surface of the slide rod 12, the surface of the slide rod 12 is connected to the surface of the connecting frame 6, and the bottom surface of the lifting rod 11 is fixedly connected to the fixing block 13.

[0020] In actual use, the control panel 2 controls the second motor 9 to start, so that the output end of the second motor 9 drives the second ball screw 10 to rotate in the bearing, thereby allowing the second ball screw 10 to drive the lifting rod 11 to move downward on the slide rod 12.

[0021] Preferably, a hook 14 is inserted into the surface of the fixing block 13, and a limiting plate 15 is sleeved on the lateral end surface of the hook 14. The limiting plate 15 is inserted into the bottom groove of the fixing block 13, and the surface of the fixing block 13 is threaded to the surface of the limiting plate 15 using knurled bolts 16.

[0022] In practical use, select the appropriate lifting hook 14 and other lifting tools according to the model of the diesel engine. Then, use the slot opened on the surface of the fixing block 13 to insert the hook 14 into the surface of the fixing block 13. Then, use the limiting plate 15 to insert into the slot on the surface of the fixing block 13, so that the limiting plate 15 is sleeved on the lateral end surface of the hook 14, so that the limiting plate 15 can abut against the surface of the hook 14. At this time, the threaded grooves at the intersection of the fixing block 13 and the limiting plate 15 are precisely aligned. Then, the knurled bolt 16 can be threaded through the threaded groove on the surface of the fixing block 13 and threaded into the threaded groove on the surface of the limiting plate 15, thereby fixing the position of the hook 14 on the fixing block 13.

[0023] Preferably, a "U"-shaped groove is provided on the bottom horizontal plate surface of the limiting plate 15, and its shape and size are adapted to the longitudinal end surface of the hook 14.

[0024] In practical use, the limiting plate 15 is sleeved on the lateral end surface of the hook 14 so that the limiting plate 15 can abut against the surface of the hook 14.

[0025] Working principle: When a diesel engine needs to be inspected and maintained, a suitable lifting hook 14 or other lifting tool is selected according to the model of the diesel engine. Then, the hook 14 can be inserted into the surface of the fixed block 13 by using the slot opened on the surface of the fixed block 13. Then, the limiting plate 15 is inserted into the slot on the surface of the fixed block 13, so that the limiting plate 15 is sleeved on the lateral end surface of the hook 14, so that the limiting plate 15 can abut against the surface of the hook 14. At this time, the thread grooves at the intersection of the fixed block 13 and the limiting plate 15 are precisely aligned. Then, the knurled bolt 16 can be threaded into the thread groove on the surface of the fixed block 13 and connected to the thread groove on the surface of the limiting plate 15, thereby fixing the position of the hook 14 on the fixed block 13. At this point, the control panel 2 mounted on the surface of the lifting base 1 can be used to set the operating parameters of the first motor 3. This causes the first motor 3 to rotate, driving the connected first ball screw 4 to rotate. Simultaneously, the moving block 5, threaded to its surface, moves parallel within the limiting groove at the top of the lifting base 1 until it reaches directly above the diesel engine. As the moving block 5 moves, the sliding balls 7 connected to the bottom of the connecting brackets 6 on both sides move together within the sliding grooves 8, thus causing the connecting brackets 6 on both sides to move stably. After the movement is complete, the first motor 3 stops, thus limiting the position of the moving block 5. Then, the control panel 2 can be used to set the operating parameters of the second motor 3. The operating parameters of motor 9 are set according to the height between hook 14 and diesel engine. Control panel 2 controls the second motor 9 to start, so that the output end of the second motor 9 drives the second ball screw 10 to rotate in the bearing. This allows the second ball screw 10 to drive the lifting rod 11 to move downward on the slide bar 12 until the lifting rod 11 moves downward so that the hook 14 can hook the lifting ring on the surface of the diesel engine and lift the diesel engine upward. Then, the operating parameters of the first motor 3 and the second motor 9 are set through control panel 2 to repeat the above operation to adjust the movement of the lifting rod 11, thereby completing the stable lifting of the diesel engine and avoiding secondary damage caused by the shaking of the diesel engine during the lifting process.

[0026] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lifting device for diesel engine maintenance, comprising a lifting base (1), characterized in that: A control panel (2) is mounted on the longitudinal end surface of the hoisting base (1). The control panel (2) is electrically connected to a first motor (3). The first motor (3) is mounted on the top transverse end surface of the hoisting base (1). The output end surface of the first motor (3) is connected to a first ball screw (4). The surface of the first ball screw (4) is threadedly connected to a moving block (5). The other side surface of the first ball screw (4) is sleeved in a bearing mounted on the top of the hoisting base (1). The moving block (5) is slidably connected to the hoisting base (1). On the top horizontal end surface, connecting frames (6) are welded to both sides of the moving block (5). A sliding ball (7) is welded to the bottom surface of the connecting frame (6). The surface of the sliding ball (7) is slidably connected to the surface of the slide groove (8). The slide groove (8) is opened on the bottom horizontal end surface of the hoisting base frame (1). A second motor (9) is installed on the top surface of the connecting frame (6). The output end surface of the second motor (9) is connected to a second ball screw (10). The other side surface of the second ball screw (10) is sleeved in the bearing installed at the bottom of the connecting frame (6).

2. The lifting equipment for diesel engine maintenance and repair according to claim 1, characterized in that: The hoisting base frame (1) is a U-shaped integrated structure with symmetrical grooves (8) on its bottom horizontal end surface.

3. The lifting equipment for diesel engine maintenance and repair according to claim 1, characterized in that: The surface of the movable block (5) has a circular threaded groove that is adapted to the shape and size of the first ball screw (4). The top horizontal end surface of the hoisting base (1) has a limiting groove that is adapted to the shape and size of the movable block (5).

4. The lifting equipment for diesel engine maintenance and repair according to claim 1, characterized in that: The second ball screw (10) is threadedly connected to the lifting rod (11), the other side of the lifting rod (11) is slidably connected to the surface of the slide rod (12), the surface of the slide rod (12) is connected to the surface of the connecting frame (6), and the bottom surface of the lifting rod (11) is fixedly connected to the fixing block (13).

5. The lifting equipment for diesel engine maintenance and repair according to claim 4, characterized in that: The surface of the fixing block (13) is connected to a hook (14), and the horizontal end surface of the hook (14) is fitted with a limiting plate (15). The limiting plate (15) is inserted into the bottom groove of the fixing block (13), and the surface of the fixing block (13) is threaded to the surface of the limiting plate (15) using a knurled bolt (16).

6. The lifting equipment for diesel engine maintenance and repair according to claim 5, characterized in that: The bottom horizontal plate of the limiting plate (15) has a "U" shaped groove, the shape and size of which are adapted to the longitudinal end surface of the hook (14).

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