Lifting appliance

Abstract

The utility model provides a lifting appliance. The lifting appliance comprises a lifting unit; the connecting unit is connected with the hoisting unit; the adjusting unit is movably connected with the connecting unit; the clamping unit is in linkage connection with the adjusting unit, the clamping unit is provided with a clamping end, and the clamping end is used for clamping a part to be hoisted; and due to the quick response of the adjusting unit and the accurate action of the clamping unit, the hoisting process is quicker, the operation efficiency is remarkably improved, and the time required by hoisting operation is shortened. Due to the adjustability of the clamping units, the lifting appliance can adapt to the to-be-lifted parts with different sizes and shapes, the application range of the lifting appliance is expanded, and the practicability of the lifting appliance in different scenes is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engine lifting, in particular to a lifting device. Background Art

[0002] The lifting and installation of bearing caps plays a crucial role in the precision manufacturing and maintenance of diesel engines. As a technological jewel in the field of internal combustion engines, diesel engines, with their powerful power and excellent economy, have demonstrated their indispensable value in a variety of fields, including ships, vehicles, and power generation equipment. However, the complexity of their internal structure, particularly the precise coordination between the bearing caps and key components such as the crankshaft and connecting rod, presents unprecedented challenges in lifting and installation.

[0003] Traditional lifting methods, whether relying on simple hand tools or universal lifting equipment, are unable to meet the high standards required for diesel engine manufacturing and maintenance. These methods often result in cumbersome and inefficient procedures, and are prone to damage to the bearing cap surface during the lifting process. This not only increases the workload for operators but also seriously threatens the performance stability and service life of the diesel engine. The limitations of traditional lifting tools are particularly prominent when handling large diesel engines or facing unique operating conditions. Their operational inconvenience and safety risks have become a bottleneck restricting the development of the industry.

[0004] While various lifting tools are readily available under existing technology, few are specifically designed for diesel engine bearing caps. This lack of specialized lifting equipment makes it difficult to precisely control the bearing cap's balance and positioning during the lifting process. This not only increases the risk of surface scratches but can also cause irreversible damage to the bearing cap and its surrounding structures during installation, impacting the overall efficiency and safety of the diesel engine.

[0005] Given this, improvements and innovations in diesel engine bearing cap lifting technology are imperative. The industry urgently needs a new solution that can achieve fast, stable, and safe bearing cap lifting, minimize operational complexity, avoid damage to the bearing cap, and improve operational efficiency and safety to meet the high demands of modern diesel engine manufacturing and maintenance. Utility Model Content

[0006] The main purpose of the utility model is to provide a lifting device to solve the problem that the lifting tools in the prior art are complicated and may damage the surface of the diesel engine.

[0007] In order to achieve the above object, according to one aspect of the present invention, a sling is provided, comprising:

[0008] Lifting unit;

[0009] A connecting unit, wherein the connecting unit is connected to the hoisting unit;

[0010] an adjusting unit, the adjusting unit being movably connected to the connecting unit;

[0011] The clamping unit is linked to the adjusting unit and has a clamping end for clamping the component to be hoisted.

[0012] Furthermore, the clamping unit comprises:

[0013] A connecting plate is provided with a threaded hole in the middle of the connecting plate, at least part of the connecting unit is connected to the threaded hole, and is connected to the adjusting unit through the threaded hole.

[0014] Furthermore, the clamping unit further comprises:

[0015] At least two clamping arms, the at least two clamping arms being rotatably connected to two ends of the connecting plate in a one-to-one correspondence;

[0016] The connecting plate is provided with a first connecting hole, and the position of the clamping arm corresponding to the connecting plate is provided with a second connecting hole;

[0017] The first connecting hole and the second connecting hole are connected through a first pin shaft.

[0018] Furthermore, each clamping arm further comprises:

[0019] a first clamping portion extending along a first direction, and a second connecting hole being provided at one end of the first clamping portion;

[0020] a second clamping portion, the second clamping portion being connected to an end of the first clamping portion away from the second connecting hole, the second clamping portion extending along a second direction perpendicular to the first direction;

[0021] a third clamping portion connected to an end of the second clamping portion away from the first clamping portion;

[0022] Wherein, at least two third clamping parts jointly form a clamping space.

[0023] Further, each third clamping portion includes:

[0024] a first horizontal portion extending along a first direction;

[0025] a second horizontal portion extending along a third direction, the third direction being perpendicular to the first direction and the second direction;

[0026] a third horizontal portion, the third horizontal portion extending along the first direction, and the first horizontal portion, the second horizontal portion and the third horizontal portion together forming a concave-shaped third clamping portion;

[0027] Wherein, the ends of the first horizontal portion and the third horizontal portion away from the second horizontal portion are clamping ends.

[0028] Furthermore, each clamping unit further comprises:

[0029] A protective piece, the protective piece is sleeved on the outside of the clamping end;

[0030] The protective part is a rubber part.

[0031] Furthermore, each adjustment unit includes:

[0032] An adjusting rod extending along a first direction, provided with an adjusting hole, the adjusting hole being threadedly connected to the connecting unit;

[0033] At least two adjusting arms are respectively arranged at two ends of the adjusting rod and are rotatably connected to the two ends of the adjusting rod.

[0034] Furthermore, each adjustment arm includes:

[0035] a first adjusting portion, one end of the first adjusting portion being rotatably connected to one end of the adjusting rod;

[0036] a second adjusting portion, one end of the second adjusting portion being rotatably connected to an end of the first adjusting portion away from the adjusting rod, and one end of the second adjusting portion away from the first adjusting portion being connected to the clamping unit;

[0037] The second adjusting portion extends along a second direction, and the second direction is perpendicular to the first direction.

[0038] Furthermore, the connection unit includes:

[0039] A connecting rod, wherein the outer circumference of the connecting rod is provided with an external thread, and the inner wall of the threaded hole is provided with an internal thread used in conjunction with the external thread;

[0040] The locking member is detachably connected to the connecting rod, and the locking member includes a first locking portion and a second locking portion to lock or unlock the connecting rod and the adjusting unit.

[0041] Furthermore, the hoisting unit includes:

[0042] A lifting ring, wherein the lifting ring has an operating hole;

[0043] A mounting through hole is provided on the lifting ring, and one end of the connecting unit extends into the mounting through hole and is connected to the mounting through hole;

[0044] Wherein, the connecting unit is fixedly connected to the mounting through hole; and / or,

[0045] The connecting unit is detachably connected to the mounting through hole.

[0046] By applying the technical solution of the present invention, the hoisting unit serves as the top component of the sling, and is used to connect with a crane or hoisting equipment to bear the hoisting force. The connecting unit firmly combines the hoisting unit and the adjusting unit to ensure the stability and strength of the entire sling structure. The adjusting unit and the connecting unit are movably connected, and the adjusting unit can realize the action of rising or falling, thereby driving the opening and closing of the clamping unit. There is a linkage relationship between the clamping unit and the adjusting unit, which ensures that the action of the adjusting unit can be accurately transmitted to the clamping end to achieve the clamping or release of the component to be hoisted. The clamping unit is designed with a clamping end, which can be driven by the adjusting unit to accurately fit the surface of the component according to the shape and size of the component to be hoisted, thereby avoiding any damage to the component during the hoisting process. The opening and closing of the clamping unit can be achieved through the simple operation of the adjusting unit, which greatly simplifies the complexity of the hoisting operation and reduces the labor intensity of the operator. The clamping unit's gripping end design ensures the components remain stable during the lifting process, effectively preventing them from swaying or tilting mid-air, thereby avoiding damage and operational risks. The quick response of the adjustment unit and the precise movement of the clamping unit expedite the lifting process, significantly improving efficiency and reducing the time required for the lifting operation. The adjustable gripping unit allows the spreader to accommodate components of varying sizes and shapes, expanding its application range and enhancing its practicality in various scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0048] Figure 1 A schematic structural diagram of a spreader according to an embodiment of the present application is shown;

[0049] Figure 2 A front view of a spreader according to an embodiment of the present application is shown.

[0050] The above drawings include the following reference numerals:

[0051] 1. Lifting ring; 2. Connecting rod; 3. Connecting plate; 4. Adjusting rod; 5. Adjusting arm; 501. First adjusting part; 502. Second adjusting part; 6. Clamping arm; 601. First clamping part; 602. Second clamping part; 603. Third clamping part; 6031. First horizontal part; 6032. Second horizontal part; 6033. Third horizontal part; 7. Locking piece; 701. First locking part; 702. Second locking part; 8. First pin shaft; 9. Clamping end. DETAILED DESCRIPTION

[0052] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0053] The lifting and installation of bearing caps plays a crucial role in the precision manufacturing and maintenance of diesel engines. As a technological jewel in the field of internal combustion engines, diesel engines, with their powerful power and excellent economy, have demonstrated their indispensable value in a variety of fields, including ships, vehicles, and power generation equipment. However, the complexity of their internal structure, particularly the precise coordination between the bearing caps and key components such as the crankshaft and connecting rod, presents unprecedented challenges in lifting and installation.

[0054] Traditional lifting methods, whether relying on simple hand tools or universal lifting equipment, are unable to meet the high standards required for diesel engine manufacturing and maintenance. These methods often result in cumbersome and inefficient procedures, and are prone to damage to the bearing cap surface during the lifting process. This not only increases the workload for operators but also seriously threatens the performance stability and service life of the diesel engine. The limitations of traditional lifting tools are particularly prominent when handling large diesel engines or facing unique operating conditions. Their operational inconvenience and safety risks have become a bottleneck restricting the development of the industry.

[0055] While various lifting tools are readily available under existing technology, few are specifically designed for diesel engine bearing caps. This lack of specialized lifting equipment makes it difficult to precisely control the bearing cap's balance and positioning during the lifting process. This not only increases the risk of surface scratches but can also cause irreversible damage to the bearing cap and its surrounding structures during installation, impacting the overall efficiency and safety of the diesel engine.

[0056] Given this, improvements and innovations in diesel engine bearing cap lifting technology are imperative. The industry urgently needs a new solution that can achieve fast, stable, and safe bearing cap lifting, minimize operational complexity, avoid damage to the bearing cap, and improve operational efficiency and safety to meet the high demands of modern diesel engine manufacturing and maintenance.

[0057] The main purpose of the utility model is to provide a lifting device to solve the problem that the lifting tools in the prior art are complicated and may damage the surface of the diesel engine.

[0058] The present application provides a sling, comprising: a sling unit;

[0059] A connecting unit, wherein the connecting unit is connected to the hoisting unit;

[0060] an adjusting unit, the adjusting unit being movably connected to the connecting unit;

[0061] The clamping unit is linked to the adjusting unit, and the clamping unit has a clamping end 9, which is used to clamp the component to be hoisted.

[0062] Specifically, if Figure 1 and Figure 2 As shown, the utility model relates to a sling, which realizes the effective clamping and safe lifting of the parts to be hoisted. Specifically, the hoisting unit serves as the top component of the sling, and is used to be connected to a crane or hoisting equipment to bear the lifting force. The connecting unit firmly combines the hoisting unit and the adjusting unit together to ensure the stability and strength of the entire sling structure. The adjusting unit and the connecting unit are movably connected, and the adjusting unit can realize the action of rising or falling, thereby driving the opening and closing of the clamping unit. There is a linkage relationship between the clamping unit and the adjusting unit, which ensures that the action of the adjusting unit can be accurately transmitted to the clamping end to realize the clamping or release of the parts to be hoisted. The clamping unit is designed with a clamping end 9, which can be driven by the adjusting unit to accurately fit the surface of the part to be hoisted according to the shape and size of the part to be hoisted, thereby avoiding any damage to the part during the lifting process. The opening and closing of the clamping unit can be realized by simple operation of the adjusting unit, which greatly simplifies the complexity of the hoisting operation and reduces the labor intensity of the operator. The clamping unit's clamping end (9) ensures the component remains stable during the lifting process, effectively preventing it from swaying or tilting mid-air, thereby avoiding damage and operational risks. The rapid response of the adjustment unit and the precise movement of the clamping unit expedite the lifting process, significantly improving operational efficiency and reducing the time required for the lifting operation. The adjustability of the clamping unit allows the sling to accommodate components of varying sizes and shapes, expanding its application range and enhancing its practicality in various scenarios.

[0063] The clamping unit includes a connecting plate 3 , a threaded hole is provided in the middle of the connecting plate 3 , at least a portion of the connecting unit is connected to the threaded hole, and is connected to the adjusting unit through the threaded hole.

[0064] Specifically, in this embodiment, the clamping unit includes a connecting plate 3, which has a threaded hole in the middle of the connecting plate 3, through which the connecting unit is connected to the adjustment unit. Due to the threaded hole design in the middle of the connecting plate 3, the stud can serve as an adjustment unit (other components can also serve as adjustment units), allowing the sling to adapt to bearing caps of different sizes and weights, thereby improving the versatility and flexibility of the sling. The operator can adjust the clamping force and opening and closing degree by simply rotating the stud according to actual needs to ensure safe lifting. The threaded connection method ensures stable and precise force transmission, avoiding damage to the bearing cap or failure of the sling due to loose connection or uneven force transmission during the lifting process. This design is crucial to ensuring the safety and efficiency of the lifting operation. The connecting plate 3 serves as a bridge between the connecting unit and the adjustment unit. The stability of its design directly affects the overall stability and service life of the sling. By optimizing the position and size of the threaded hole, the structural strength of the upper connecting plate can be enhanced, ensuring that the connection point does not become a weak link when lifting heavy loads. This design simplifies the use of the spreader. Operators simply open and close the spreader by rotating a stud, without the need for additional tools or complex procedures. This not only improves operational efficiency but also reduces operational difficulty, enabling even non-specialists to quickly master its use. The threaded connection also facilitates spreader maintenance and component replacement. If a stud or connecting plate becomes worn or damaged, it can be easily removed and replaced without scrapping the entire spreader, reducing maintenance costs and downtime.

[0065] The clamping unit also includes:

[0066] At least two clamping arms 6, the at least two clamping arms 6 are rotatably connected to the two ends of the connecting plate 3 in a one-to-one correspondence;

[0067] The connecting plate 3 is provided with a first connecting hole, and the position of the clamping arm 6 corresponding to the connecting plate 3 is provided with a second connecting hole;

[0068] The first connecting hole and the second connecting hole are connected via a first pin 8 .

[0069] Specifically, the diesel engine bearing cap lifting device of the present invention utilizes at least two clamping arms 6, which are rotatably connected to the ends of the connecting plate 3 in a one-to-one correspondence. Specifically, the connecting plate 3 is pre-determined with a first connection hole, while each clamping arm 6 is provided with a second connection hole at a position corresponding to the connecting plate 3. A first pin 8 connects the first and second connection holes, enabling each clamping arm 6 to rotate relative to the connecting plate 3, thereby providing greater flexibility and adaptability when clamping and releasing the bearing cap. During operation, the movement of the clamping arms 6 is controlled by an external drive device (such as a hydraulic cylinder or electric motor) or manually (such as by rotating a stud). The rotational movement of the clamping arms 6 is enabled by the axial fixation and radial free rotation characteristics of the first pin 8, allowing the clamping arms 6 to adapt to the shape and size of the bearing cap. When clamping the bearing cap, the clamping arms 6 maintain close contact with the bearing cap through the clamping structure at their free ends (e.g., a clamping jaw with a rubber pad), ensuring the stability and safety of the bearing cap during the lifting process.

[0070] By using a pin connection, the clamping arm 6 can rotate freely relative to the connecting plate 3, which greatly improves the adaptability of the sling when facing bearing caps of different shapes and sizes, and reduces the difficulty of lifting caused by mismatch of the sling size. The design of the rotatable clamping arm 6 makes the operation of the sling easier. No complicated adjustment tools are required. The opening and closing of the clamping arm 6 can be achieved through external drive or manual operation, which greatly reduces the workload and operation complexity of the operator. The free end of the clamping arm 6 is equipped with a rubber pad, which not only prevents damage to the surface of the bearing cap during the lifting process, but also provides additional friction and buffering effect, ensuring the safety and stability of the lifting process and avoiding damage to the bearing cap and its related components caused by lifting. Since the clamping arm 6 can quickly respond to and adapt to the lifting requirements of the bearing cap, the overall lifting efficiency of the sling is significantly improved, reducing the waste of operating time caused by improper adjustment of the lifting tools, which is conducive to improving the production efficiency of diesel engine manufacturing and maintenance.

[0071] Each clamping arm 6 also includes:

[0072] A first clamping portion 601 extending along a first direction, with a second connecting hole provided at one end of the first clamping portion 601;

[0073] A second clamping portion 602, connected to an end of the first clamping portion 601 away from the second connecting hole, the second clamping portion 602 extending along a second direction perpendicular to the first direction;

[0074] A third clamping portion 603, the third clamping portion 603 is connected to an end of the second clamping portion 602 away from the first clamping portion 601;

[0075] At least two third clamping portions 603 together form a clamping space.

[0076] Specifically, this embodiment provides a dedicated lifting device for diesel engine bearing caps, designed to achieve precise and damage-free lifting of bearing caps. Each clamping arm 6 comprises a first clamping portion 601, a second clamping portion 602, and a third clamping portion 603. The first clamping portion 601 extends in a first direction and has a second connection hole at one end for rotatably connecting to the connecting plate 3 via a first pin 8, thereby ensuring flexible adjustment of the clamping arm 6 during the lifting process. The second clamping portion 602 is connected to the other end of the first clamping portion 601 and extends in a second direction perpendicular to the first direction. This arrangement enables the clamping arm 6 to provide a stable clamping force on the bearing cap. The third clamping portion 603 connects to the second clamping portion 602, forming a clamping space that accommodates the edges of the bearing cap and prevents slippage and damage during the lifting process. At least two clamping arms 6 are rotatably connected to the ends of the connecting plate 3 in a one-to-one correspondence. This design ensures that the lifting device can accommodate bearing caps of different sizes and shapes, enhancing the lifting device's versatility and adaptability. The first connecting hole on the connecting plate 3 is connected to the second connecting hole on the clamping arm 6 via the first pin 8, so that the clamping arm 6 can rotate around the first pin 8 to achieve opening and clamping actions, ensuring the stability of the sling when clamping the bearing cover and the flexibility when releasing the bearing cover. The combination of the first clamping part 601, the second clamping part 602 and the third clamping part 603 can accurately clamp the bearing cover, avoiding the displacement and damage of the bearing cover during the lifting process, and improving the accuracy and safety of the lifting operation. The design of at least two clamping arms 6 enables the sling of the utility model to adapt to bearing covers of different sizes and shapes, enhancing the versatility and adaptability of the sling, reducing the need to replace the sling when repairing or assembling different models of diesel engines, and saving time and cost. The method of connecting the first connecting hole and the second connecting hole with the first pin 8 makes the opening and clamping operations of the clamping arm 6 simple and quick, without the need for additional tools, and improving work efficiency. The clamping space formed by the third clamping portion 603 effectively prevents the bearing cap from sliding during installation. The use of rubber pads further protects the bearing cap surface, preventing scratches and collisions, extending its service life while also safeguarding the overall performance of the diesel engine. The rotatable connection and stable clamping structure of the clamping arm 6 ensure the stability and safety of the bearing cap during installation, reducing the risk of accidents and improving the safety of the entire lifting operation.

[0077] Each third clamping portion comprises:

[0078] A first horizontal portion 6031 extending along a first direction;

[0079] A second horizontal portion 6032 extending along a third direction perpendicular to the first direction and the second direction;

[0080] The third horizontal portion 6033 extends along the first direction, and the first horizontal portion 6031, the second horizontal portion 6032 and the third horizontal portion 6033 together form a concave-shaped third clamping portion 603;

[0081] The ends of the first horizontal portion 6031 and the third horizontal portion 6033 away from the second horizontal portion 6032 are clamping ends 9 .

[0082] Specifically, the key structure of a diesel engine bearing cover hanger proposed by the utility model patent lies in at least two clamping arms 6, each of which is composed of a first clamping part 601, a second clamping part 602 and a third clamping part 603. During use, the clamping ends 9 of the first horizontal part 6031 and the third horizontal part 6033 are used to directly contact and clamp the bearing cover, while the second horizontal part 6032 provides additional support and stability to ensure that the bearing cover does not tilt or slide during the lifting process. When multiple third clamping parts 603 work together, they form a closed clamping space that can accommodate bearing covers of different models and sizes, ensuring the safety and stability of the bearing cover during the lifting process. The concave design of the third clamping part 603 ensures the stability of the bearing cover during the lifting process, reduces the risk of sliding and tilting, effectively protects the bearing cover and its surrounding components from damage, and improves the safety of the lifting operation. The clamping space formed by at least two third clamping portions 603 can accommodate bearing caps of varying models and sizes, ensuring efficient and safe lifting performance under diverse working conditions. A soft material, such as a rubber pad, is provided on the clamping end 9 to effectively prevent scratches on the bearing cap surface caused by hard contact during clamping. This cushioning effect also reduces potential damage from vibration during lifting. The sling has a compact design, and all components can be quickly assembled and disassembled, facilitating rapid deployment and use in diverse operating environments.

[0083] Each clamping unit also includes:

[0084] A protective member, which is sleeved on the outside of the clamping end 9;

[0085] The protective part is a rubber part.

[0086] Specifically, the clamping unit further includes a protective sleeve arranged outside the clamping end 9. The protective sleeve is a rubber piece, which can prevent the bearing cover of the diesel engine from being scratched during the process of lifting the bearing cover of the diesel engine.

[0087] Each regulating unit includes:

[0088] An adjusting rod 4 extends along a first direction and is provided with an adjusting hole, the adjusting hole being threadedly connected to the connecting unit;

[0089] At least two adjusting arms 5 are respectively provided at two ends of the adjusting rod 4 and are rotatably connected to the two ends of the adjusting rod 4 .

[0090] Specifically, each adjustment unit includes an adjustment rod 4, at least two adjustment arms 5, a connecting plate 3 and a plurality of clamping arms 6. The adjustment rod 4 extends along a first direction and is provided with an adjustment hole. The adjustment hole is threadedly connected to the connecting unit so that the position of the adjustment rod 4 can be adjusted as needed to accommodate objects of different sizes. At least two adjustment arms 5 are respectively provided at both ends of the adjustment rod 4 and are rotatably connected to the two ends of the adjustment rod 4. This connection method allows the adjustment arm 5 to flexibly adjust the angle according to the shape and position of the object, ensuring the stability of the clamping. Each clamping arm 6 includes a first horizontal portion 6031, a second horizontal portion 6032 and a third horizontal portion 6033. The first horizontal portion 6031 extends along the first direction, the second horizontal portion 6032 extends along the third direction, and the third direction is perpendicular to the first and second directions; the third horizontal portion 6033 extends along the first direction. These three parts together form a concave-shaped third clamping portion 603, wherein the end of the first horizontal portion 6031 and the third horizontal portion 6033 away from the second horizontal portion 6032 is a clamping end 9 for directly clamping an object. Each clamping arm 6 also includes a first clamping portion 601 and a second clamping portion 602. The first clamping portion 601 extends along a first direction, and a second connecting hole is provided at one end of the first clamping portion 601; the second clamping portion 602 is connected to the end of the first clamping portion 601 away from the second connecting hole, and the second clamping portion 602 extends along a second direction, which is perpendicular to the first direction; the third clamping portion 603 is connected to the end of the second clamping portion 602 away from the first clamping portion 601. At least two third clamping portions 603 together form a clamping space for safely and firmly clamping an object. At least two clamping arms 6 are rotatably connected to the two ends of the connecting plate 3 in a one-to-one correspondence. A first connecting hole is provided on the connecting plate 3, and a second connecting hole is provided at a position corresponding to the connecting plate 3 of the clamping arm 6; the first connecting hole and the second connecting hole are connected by a first pin 8. This design enables the clamping arm 6 to rotate relative to the connecting plate 3, thereby increasing the flexibility and adaptability of the device. The present application realizes flexible adjustment and clamping in the first direction and the third direction through the ingenious design of the adjusting rod 4, the adjusting arm 5 and the clamping arm 6. It is suitable for objects of various sizes and shapes, especially for objects of irregular shapes. The present device can provide a safer and more stable clamping effect, avoiding damage that may be caused to the object during the lifting process. Secondly, the rotating design of the clamping arm 6 makes it possible to flexibly adjust the angle of the clamping arm 6 according to the specific position of the object during use, thereby improving the efficiency and safety of the lifting. Furthermore, the design of the clamping end 9 can ensure that no damage is caused to the object when clamping it, which is particularly important for objects with high surface finish requirements.Finally, by using the adjustment rod 4 and the adjustment arm 5 in conjunction with each other, the position and angle of the clamping arm 6 can be easily adjusted, which is easy to operate, greatly improving the practicality and operability of the device, reducing the workload of the operator, and improving the efficiency and safety of the lifting operation. It has broad application prospects.

[0091] Each regulating arm 5 comprises:

[0092] A first adjusting portion 501, one end of which is rotatably connected to one end of the adjusting rod 4;

[0093] A second adjusting portion 502, one end of the second adjusting portion 502 is rotatably connected to the end of the first adjusting portion 501 away from the adjusting rod 4, and the end of the second adjusting portion 502 away from the first adjusting portion 501 is connected to the clamping unit;

[0094] The second adjusting portion 502 extends along a second direction, which is perpendicular to the first direction.

[0095] Each adjusting arm 5 is composed of a first adjusting portion 501 and a second adjusting portion 502. One end of the first adjusting portion 501 is rotatably connected to one end of the adjusting rod 4, and the other end is rotatably connected to one end of the second adjusting portion 502, while the end of the second adjusting portion 502 away from the first adjusting portion 501 is connected to the clamping unit. Importantly, the second adjusting portion 502 extends in a second direction, which is perpendicular to the first direction. This design ensures that the adjusting arm 5 can adapt to bearing caps of different sizes and achieve precise clamping. Each third clamping portion 603 has a unique concave structure, consisting of a first horizontal portion 6031, a second horizontal portion 6032 and a third horizontal portion 6033. The first horizontal portion 6031 and the third horizontal portion 6033 extend in the first direction, while the second horizontal portion 6032 extends in a third direction, which is perpendicular to the first and second directions. This structural design enables the third clamping portion 603 to fit closely to the shape of the bearing cap, preventing any displacement or damage during the lifting process. The design of the clamping arm 6 also reflects the innovation of the present invention. It includes a first clamping portion 601 extending along a first direction, a second clamping portion 602 connected to the first clamping portion 601 and extending along a second direction, and a third clamping portion 603 connected to the second clamping portion 602. A second connecting hole is provided at the other end of the first clamping portion 601, and the second connecting hole is rotatably connected to the first connecting hole on the connecting plate 3 through a first pin 8. This connection method allows the clamping arm 6 to flexibly adjust its angle according to the different positions of the bearing cover, thereby achieving all-round clamping of the bearing cover. At least two clamping arms 6 are rotatably connected to the two ends of the connecting plate 3 in a one-to-one correspondence, together forming a clamping space that can safely and effectively accommodate and fix the bearing cover, thereby ensuring safety and stability during the lifting process.

[0096] The design of the adjustment arm 5 in the present application significantly improves the efficiency and safety of the lifting operation. Specifically, the combination of the adjustment rod 4, the adjustment arm 5 and the clamping arm 6 enables the sling to adapt to bearing caps of various models and sizes, greatly reducing the risk of damage caused by size mismatch during the lifting process. The concave-shaped third clamping portion 603 of the clamping arm 6 is designed to fit closely to the shape of the bearing cap, effectively preventing the bearing cap from shaking during the lifting process and ensuring the stability of the lifting. At the same time, through the adjustability of the adjustment arm 5, the user can easily adjust the size of the clamping force to avoid unnecessary damage to the bearing cap due to excessive clamping force. In addition, the use of the first pin shaft 8 connection method enables the clamping arm 6 to rotate flexibly according to actual needs, increasing the adaptability of the sling and the convenience of operation. In summary, the sling of the present invention not only improves the efficiency of the lifting operation, but also greatly enhances the safety of the operation and reduces the potential damage to the bearing cap, which is of great value for optimizing the lifting operation in the field of diesel engine manufacturing and maintenance.

[0097] The connection unit includes:

[0098] The connecting rod 2 has an external thread on its outer circumference and an internal thread on the inner wall of the threaded hole that cooperates with the external thread;

[0099] The locking member 7 is detachably connected to the connecting rod 2 . The locking member 7 includes a first locking portion 701 and a second locking portion 702 to lock or unlock the connecting rod 2 and the adjustment unit.

[0100] Specifically, the connecting rod 2 serves as the central axis of the sling. Its outer circumference is provided with external threads that mate with threaded holes on the adjusting rod 4 in the adjustment unit. Rotating the connecting rod 2 allows the adjusting rod 4 to move up and down. The locking member 7 includes a first locking portion 701 and a second locking portion 702. Locking and unlocking the locking member 7 stabilizes the relative position between the adjusting unit and the connecting rod 2, ensuring the stability and safety of the clamping structure during the lifting process. Each adjusting arm 5 consists of a first adjusting portion 501 and a second adjusting portion 502. The first adjusting portion 501 is rotatably connected to one end of the adjusting rod 4, while the second adjusting portion 502 is rotatably connected to the end of the first adjusting portion 501 away from the adjusting rod 4. The end of the second adjusting portion 502 away from the first adjusting portion 501 is connected to the clamping unit. The second adjusting portion 502 extends in a second direction, perpendicular to the first direction. Rotating the adjusting arm 5 allows the position of the clamping unit to be adjusted to accommodate bearing caps of different sizes. Each clamping arm 6 includes a first clamping portion 601, a second clamping portion 602 and a third clamping portion 603. The first clamping portion 601 extends along the first direction, and the second connecting hole is provided at one end of the first clamping portion 601. The second clamping portion 602 extends along the second direction and is connected to the end of the first clamping portion 601 away from the second connecting hole. The third clamping portion 603 is formed in a concave shape, including a first horizontal portion 6031, a second horizontal portion 6032 and a third horizontal portion 6033, which together form a clamping space to ensure comprehensive wrapping and protection of the bearing cover. At least two clamping arms 6 are rotatably connected to the two ends of the connecting plate 3 in a one-to-one correspondence, and the first connecting hole provided on the connecting plate 3 is connected to the second connecting hole on the clamping arm 6 by a first pin shaft 8, so that the clamping arm 6 can rotate around the first pin shaft 8 to adapt to the shape change of the bearing cover while maintaining its stability during the lifting process.

[0101] By rotating the connecting rod 2, the adjusting rod 4 can move up and down, thereby driving the adjusting arm 5 to adjust the position of the clamping unit, realizing automatic adaptive clamping of bearing covers of different sizes and shapes, eliminating the need for frequent manual adjustments and improving the lifting efficiency. The locking member 7 ensures a stable connection between the adjusting unit and the connecting rod 2, preventing the loosening of the clamping structure due to accidental movement of the adjusting unit during the lifting process, greatly enhancing the safety of the lifting operation. The concave-shaped third clamping portion 603 design ensures that the shape of the clamping space matches the bearing cover, avoiding scratches and damage to the surface of the bearing cover during the lifting process, and protecting the integrity and surface quality of the bearing cover. The rotatable connection between the adjusting arm 5 and the clamping arm 6 allows the operator to easily adjust the clamping range of the sling to adapt to different models of diesel engine bearing covers, reducing the difficulty of operation and improving the convenience of operation.

[0102] The lifting unit includes:

[0103] A lifting ring 1, wherein the lifting ring 1 has an operating hole;

[0104] A mounting through hole is provided on the lifting ring 1, and one end of the connecting unit extends into the mounting through hole and is connected to the mounting through hole;

[0105] Wherein, the connecting unit is fixedly connected to the mounting through hole; and / or,

[0106] The connecting unit is detachably connected to the mounting through hole.

[0107] Specifically, the lifting unit includes a lifting ring 1 having a mounting hole. One end of a connecting rod 2 extends into the mounting hole and is fixedly connected to the mounting hole, forming a vertical support structure for the lifting device. The connecting rod 2 is provided with external threads on the outer circumference, which cooperate with the internal threads on the inner wall of the threaded hole located on the adjusting rod 4 of the adjustment unit to achieve an adjustable connection between the connecting unit and the adjustment unit. The adjusting rod 4 in the adjustment unit extends along a first direction and has an adjustment hole therein, which is threadedly connected to the connecting rod 2. The ends of the adjusting rod 4 are rotatably connected to one end of at least two adjusting arms 5. Rotation of the adjusting rod 4 allows the adjusting arms 5 to move between a first direction and a second direction, the second direction being perpendicular to the first direction. Each adjusting arm 5 is composed of a first adjusting portion 501 and a second adjusting portion 502. One end of the first adjusting portion 501 is rotatably connected to one end of the adjusting rod 4, and one end of the second adjusting portion 502 is rotatably connected to the other end of the first adjusting portion 501. The end of the second adjusting portion 502, which is remote from the first adjusting portion 501, is connected to the clamping unit. The clamping unit is composed of at least two clamping arms 6, each of which includes a first clamping portion 601, a second clamping portion 602, and a third clamping portion 603. The first clamping portion 601 extends along a first direction and has a second connecting hole at one end thereof. The second connecting hole is connected to the first connecting hole on the connecting plate 3 via a first pin 8, thereby achieving a rotatable connection between the clamping arm 6 and the connecting plate 3. The second clamping portion 602 is connected to the other end of the first clamping portion 601 and extends along the second direction. The third clamping portion 603 is connected to the distal end of the second clamping portion 602. The first horizontal portion 6031 and the third horizontal portion 6033 extend along the first direction, and the second horizontal portion 6032 extends along the third direction, together forming a concave-shaped third clamping portion 603. The clamping end 9 of the third clamping portion 603 is used to directly contact and clamp the bearing cover. The locking member 7 is detachably connected to the connecting rod 2 and includes a first locking portion 701 and a second locking portion 702, which are used to lock or unlock the connection between the connecting rod 2 and the adjustment unit to ensure stability and safety during the lifting process.

[0108] Through the threaded connection between the adjusting rod 4 and the connecting rod 2, and the rotational connection of the adjusting arm 5, the sling of the present application can be flexibly adjusted according to the size of the bearing cover, thereby improving the adaptability of the sling and allowing the same sling to be suitable for lifting operations of bearing covers of various models and sizes. The clamping unit design of the clamping arm 6 realizes a rotatable connection with the connecting plate 3 through the first pin 8, and the fast locking and unlocking function of the locking member 7, which simplifies the installation and disassembly process of the sling and greatly improves the operation efficiency. The third clamping portion 603 of the clamping arm 6 forms a concave shape, which can effectively clamp the bearing cover to prevent slippage or damage during the lifting process. The locking member 7 ensures the stability of the sling during the lifting process, reduces the operational risk, and improves the safety factor of the operation.

[0109] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0110] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0111] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0112] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0113] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0114] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A sling, characterized in that: include: Lifting unit; a connecting unit connected to the hoisting unit; an adjusting unit, the adjusting unit being movably connected to the connecting unit; A clamping unit is linked to the adjusting unit, and the clamping unit has a clamping end (9), and the clamping end (9) is used to clamp the component to be hoisted.

2. The sling according to claim 1, characterized in that: The clamping unit comprises: A connecting plate (3) is provided with a threaded hole in the middle of the connecting plate (3), at least part of the connecting unit is connected to the threaded hole, and is connected to the adjusting unit through the threaded hole.

3. The sling according to claim 2, characterized in that: The clamping unit further comprises: At least two clamping arms (6), the at least two clamping arms (6) being rotatably connected to the two ends of the connecting plate (3) in a one-to-one correspondence; Wherein, a first connecting hole is provided on the connecting plate (3), and a second connecting hole is provided at a position of the clamping arm (6) corresponding to the connecting plate (3); The first connecting hole and the second connecting hole are connected via a first pin (8).

4. The sling according to claim 3, characterized in that: Each of the clamping arms (6) further comprises: a first clamping portion (601), the first clamping portion (601) extending along a first direction, the second connecting hole being provided at one end of the first clamping portion (601); a second clamping portion (602), the second clamping portion (602) being connected to an end of the first clamping portion (601) away from the second connecting hole, the second clamping portion (602) extending along a second direction, the second direction being perpendicular to the first direction; a third clamping portion (603), the third clamping portion (603) being connected to an end of the second clamping portion (602) away from the first clamping portion (601); Wherein, at least two of the third clamping parts (603) together form a clamping space.

5. The sling according to claim 4, characterized in that: Each of the third clamping parts comprises: a first horizontal portion (6031), the first horizontal portion (6031) extending along the first direction; a second horizontal portion (6032), the second horizontal portion (6032) extending along a third direction, the third direction being perpendicular to the first direction and the second direction; a third horizontal portion (6033), the third horizontal portion (6033) extending along the first direction, and the first horizontal portion (6031), the second horizontal portion (6032) and the third horizontal portion (6033) together forming the third clamping portion (603) in a concave shape; Wherein, the end of the first horizontal portion (6031) and the third horizontal portion (6033) away from the second horizontal portion (6032) is the clamping end (9).

6. The sling according to claim 1, characterized in that: Each of the clamping units further comprises: A protective member, the protective member being sleeved on the outside of the clamping end (9); Wherein, the protective component is a rubber component.

7. The spreader according to claim 1, characterized in that: Each of the adjustment units comprises: An adjusting rod (4), the adjusting rod (4) extending in a first direction, an adjusting hole being provided on the adjusting rod (4), the adjusting hole being threadedly connected to the connecting unit; At least two adjusting arms (5) are respectively provided at two ends of the adjusting rod (4) and are rotatably connected to the two ends of the adjusting rod (4).

8. The spreader according to claim 7, characterized in that: Each of the regulating arms (5) comprises: a first adjusting portion (501), one end of the first adjusting portion (501) being rotatably connected to one end of the adjusting rod (4); a second adjusting portion (502), one end of the second adjusting portion (502) being rotatably connected to an end of the first adjusting portion (501) away from the adjusting rod (4), and one end of the second adjusting portion (502) away from the first adjusting portion (501) being connected to the clamping unit; The second adjusting portion (502) extends along a second direction, and the second direction is perpendicular to the first direction.

9. The spreader according to claim 2, characterized in that: The connecting unit includes: A connecting rod (2), wherein the outer circumference of the connecting rod (2) is provided with an external thread, and the inner wall of the threaded hole is provided with an internal thread used in conjunction with the external thread; A locking member (7), the locking member (7) is detachably connected to the connecting rod (2), and the locking member (7) comprises a first locking portion (701) and a second locking portion (702) to lock or unlock the connecting rod (2) and the adjusting unit.

10. The spreader according to claim 9, characterized in that: The hoisting unit comprises: A lifting ring (1), wherein the lifting ring (1) has an operating hole; A mounting through hole, the mounting through hole being provided on the hanging ring (1), one end of the connecting unit extending into the mounting through hole and being connected to the mounting through hole; Wherein, the connecting unit is fixedly connected to the mounting through hole; and / or, The connecting unit is detachably connected to the mounting through hole.

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