Lifting tool for connecting rod bearing cap

Abstract

The utility model relates to the technical field of machining, and discloses a lifting tool for a connecting rod bearing cap, which comprises a bearing cap main body, threaded holes are formed in two sides of the outer surface of the bearing cap main body, and tool components are additionally arranged on two sides of the bearing cap main body; the lifting bolt is arranged in the center of the top of the bearing cover main body, and the lifting bolt is in threaded connection with the bearing cover main body. According to the lifting tool for the connecting rod bearing cover, when the tool assemblies are installed on the threaded holes, the two tool assemblies are installed in a diagonal mode, the two ends of a lifting belt are arranged on the two tool assemblies in a wrapping mode firstly, a main hook is used for lifting, a set of lifting ring screws on a bearing cover body can be lifted through one lifting belt and an auxiliary hook, and then the lifting ring screws on the bearing cover body can be lifted through the lifting belt. And the connecting rod can be vertically lifted and overturned to be horizontally lifted. The operation requirements of horizontal lifting, vertical lifting and turning over of the bearing cover can be met, the connecting rod can be turned over and lifted conveniently when the pump cover is installed and transferred, and painful operation of a lifting worker is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a lifting tool for a connecting rod bearing cover. Background Art

[0002] A marine diesel engine is a device whose primary component converts thermal energy into mechanical energy. It is primarily used for ship propulsion and auxiliary power. Marine diesel engines have high thermal efficiency, effectively converting the heat generated by fuel combustion into mechanical energy. Connecting rod bearing caps play a crucial role in marine diesel engines, primarily protecting the small-end and big-end connecting rod bearings, ensuring their proper function and maintaining the engine's operation. During the machining of marine diesel engines, the connecting rod requires the installation of crankpin bearing caps, which require lifting and turning during installation.

[0003] Common lifting tools for connecting rod bearing caps typically consist of a clamping arm, connecting rod, shackle, and other auxiliary components. The clamping arm holds the connecting rod bearing cap securely in place during lifting. The connecting rod connects the clamping arm to the lifting device, transmitting the lifting force. The shackle connects the connecting rod to the lifting device (such as a crane or lifting equipment) and also transmits the lifting force. Other auxiliary components, such as bolts and safety devices, provide secure connection and ensure safety.

[0004] Conventional lifting tools for connecting rod bearing caps are, firstly, difficult to determine due to their complex shape and structure, especially the connection between the connecting rod and the crankshaft. Furthermore, these caps are often heavy, making it difficult to determine their center of gravity. Secondly, conventional lifting tools typically utilize a single-point or multi-point hanging method, which can easily cause the connecting rod bearing cap to shake or tilt during lifting, increasing the difficulty and safety risks of the operation. This method makes it inconvenient to perform a lifting operation on the connecting rod during pump cover installation and transportation. Therefore, a lifting tool for connecting rod bearing caps is proposed. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a lifting tool for a connecting rod bearing cover to solve the above-mentioned technical problem of inconvenience in turning over and lifting the connecting rod during installation and transportation of the pump cover.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a lifting tool for a connecting rod bearing cap, comprising:

[0009] A bearing cover body, wherein threaded holes are provided on both sides of the outer surface of the bearing cover body, and tooling components are added on both sides of the bearing cover body;

[0010] The eyebolt is located at the top center of the bearing cap body, and the eyebolt and the bearing cap body are threaded together. By installing the tooling components in the threaded holes, with the two sets of tooling components installed diagonally, and first placing a sling on each end of the tooling components and lifting with the main hook, the eyebolt on the bearing cap body can be lifted with a sling and the auxiliary hook. This allows the connecting rod to be lifted vertically and then horizontally. This not only meets the requirements for horizontal, vertical, and vertical lifting of the bearing cap, but also facilitates the turning and lifting of the connecting rod during pump cover installation and transportation, reducing the labor of the crane operator.

[0011] Preferably, the tooling assembly includes a connecting roller and side connecting plates, and the side connecting plates are located at both ends of the connecting roller. The connecting roller and the sling can be connected.

[0012] Preferably, an annular connecting block is installed at the center of both ends of the connecting roller, and the outer surface of the annular connecting block is evenly provided with limiting holes around it. The connecting roller can be connected to the corresponding structure through the annular connecting block and the limiting holes.

[0013] Preferably, guide rods are evenly arranged around the outer surface of the side connecting plate, and the ends of the guide rods extend inward through the outer wall of the side connecting plate to connect with the limiting posts. When the connecting roller drives the annular connecting block to be inserted into the interior of the side connecting plate, the guide rods can drive the limiting posts along the side connecting plate to be inserted into the interior of the annular connecting block along the limiting holes to connect. When the connecting roller is connected to the sling and reaches a certain degree of wear, the connecting roller can be easily replaced, while the entire tool cannot be replaced, thereby effectively reducing the cost of using the tooling.

[0014] Preferably, the position and shape of the limiting post and the limiting hole correspond to each other, and a compression spring is sleeved on the surface of the guide rod. The limiting post can be inserted into the limiting hole for connection operation.

[0015] Preferably, the ends of the extrusion springs are tightly fitted against the inner wall of the side connecting plate and the top of the limiting post, respectively. Under the extrusion force of the extrusion springs, the guide rods drive the limiting posts to be inserted into the limiting holes for connection. The extrusion springs ensure the stability of the connection between the connecting roller and the side connecting plate.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a lifting tool for a connecting rod bearing cap, which has the following beneficial effects:

[0018] This lifting tool for connecting rod bearing caps is designed to install the tooling components in the threaded holes. Two sets of tooling components are installed diagonally. A sling is placed at each end on each tooling component and lifted with the main hook. A sling is then used to lift the set of eye screws on the bearing cap body with the auxiliary hook. This allows the connecting rod to be lifted vertically or horizontally. This not only meets the requirements for horizontal, vertical, and vertical lifting of the bearing cap, but also facilitates the lifting of the connecting rod during pump cover installation and transportation, reducing the labor of the lifting operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the bottom structure of the bearing cover body of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the tooling assembly of the utility model;

[0022] Figure 4 This is a schematic diagram of the connecting roller and its connecting structure of the utility model.

[0023] In the figure: 1. Bearing cover body; 2. Eye screw; 3. Fixture assembly; 4. Connecting roller; 5. Side connecting plate; 6. Annular connecting block; 7. Limiting hole; 8. Guide rod; 9. Extrusion spring; 10. Limiting column. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0025] The utility model provides a technical solution, a lifting tool for connecting rod bearing cap, comprising: Figure 1 Figure 2 , a bearing cover body 1, and threaded holes are opened on both sides of the outer surface of the bearing cover body 1, and tooling components 3 are added on both sides of the bearing cover body 1;

[0026] See also Figure 3The eye screw 2 is set at the top center of the bearing cover body 1, and the eye screw 2 is threadedly connected to the bearing cover body 1. When the tooling assembly 3 is installed on the threaded hole, the two sets of tooling assemblies 3 are installed diagonally. First, the two ends of a sling are respectively placed on the two sets of tooling assemblies 3 and lifted with the main hook. The set of eye screws 2 on the bearing cover body 1 can be lifted with a sling and the auxiliary hook, so that the connecting rod can be lifted vertically and then turned horizontally. It not only meets the operational requirements of horizontal lifting, vertical lifting, and turning over of the bearing cover, but also facilitates the turning over and lifting of the connecting rod during the installation and transportation of the pump cover, reducing the painful work of the crane operator.

[0027] See also Figure 4 The tooling assembly 3 includes a connecting roller 4 and a side connecting plate 5, and the side connecting plate 5 is located at both ends of the connecting roller 4. The connecting roller 4 can be connected to the sling.

[0028] Annular connecting blocks 6 are installed at the center of both ends of the connecting roller 4, and limiting holes 7 are evenly distributed around the outer surface of the annular connecting blocks 6. The connecting roller 4 can be connected to the corresponding structure through the annular connecting blocks 6 and the limiting holes 7. Guide rods 8 are evenly distributed around the outer surface of the side connecting plate 5, and the ends of the guide rods 8 extend inward through the outer wall of the side connecting plate 5 to connect with the limiting posts 10. When the connecting roller 4 drives the annular connecting blocks 6 to be inserted into the interior of the side connecting plate 5, the guide rods 8 can drive the limiting posts 10 along the side connecting plate 5 and insert them into the annular connecting block 6 along the limiting holes 7 to connect. When the connecting roller 4 is used in conjunction with the sling and reaches a certain degree of wear, the connecting roller 4 can be easily replaced, while the entire structure cannot be replaced, effectively reducing the cost of the tooling. The position and shape of the limiting posts 10 correspond to the limiting holes 7, and a compression spring 9 is mounted on the surface of the guide rods 8. The limiting posts 10 can be inserted into the limiting holes 7 to connect. The ends of the extrusion spring 9 are respectively tightly fitted against the inner wall of the side connecting plate 5 and the top of the limiting post 10. Under the extrusion force of the extrusion spring 9, the guide rod 8 drives the limiting post 10 to be inserted into the limiting hole 7 for connection. The action of the extrusion spring 9 ensures the stability of the connection between the connecting roller 4 and the side connecting plate 5.

[0029] This solution involves installing the tooling assemblies 3 in the threaded holes, with the two sets of tooling assemblies 3 mounted diagonally. A sling is placed at each end on each of the two sets of tooling assemblies 3 and lifted with the main hook. A sling is then used to lift the set of eyebolts 2 on the bearing cap body 1, using a secondary hook. This allows the connecting rod to be lifted from a vertical position to a horizontal position. After the connecting roller 4 drives the annular connecting block 6 into the interior of the side connecting plate 5, the guide rod 8, under the compressive force of the extrusion spring 9, drives the limit post 10 into the interior of the limit hole 7 to connect. The action of the extrusion spring 9 ensures the stability of the connection between the connecting roller 4 and the side connecting plate 5.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood 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 present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting tool for connecting rod bearing cap, characterized in that: include: A bearing cover body (1), wherein threaded holes are provided on both sides of the outer surface of the bearing cover body (1), and tooling components (3) are additionally provided on both sides of the bearing cover body (1); The eye screw (2) is arranged at the top center position of the bearing cover body (1), and the eye screw (2) and the bearing cover body (1) are threadedly connected.

2. A lifting tool for a connecting rod bearing cap according to claim 1, characterized in that: The tooling assembly (3) includes a connecting roller (4) and a side connecting plate (5), and the side connecting plate (5) is located at both ends of the connecting roller (4).

3. A lifting tool for a connecting rod bearing cap according to claim 2, characterized in that: Annular connecting blocks (6) are installed at the center positions of both ends of the connecting roller (4), and limiting holes (7) are evenly arranged around the outer surface of the annular connecting block (6).

4. A lifting tool for a connecting rod bearing cap according to claim 3, characterized in that: Guide rods (8) are evenly arranged around the outer surface of the side connecting plate (5), and the ends of the guide rods (8) penetrate the outer wall of the side connecting plate (5) and extend inwardly to connect with the limiting columns (10).

5. A lifting tool for a connecting rod bearing cap according to claim 4, characterized in that: The position and shape relationship between the limiting column (10) and the limiting hole (7) corresponds, and an extrusion spring (9) is sleeved on the surface of the guide rod (8).

6. A lifting tool for a connecting rod bearing cap according to claim 5, characterized in that: The ends of the extrusion spring (9) are respectively tightly fitted with the inner wall of the side connecting plate (5) and the top of the limiting column (10).

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