Modularized universal power device hoisting device

Abstract

The invention relates to a modularized and universal power device hoisting device. The problem that an existing special hoisting device cannot support efficient research and development of multi-tonnage, serialized, universal and multi-form modularized power devices is solved. Comprising a main lifting chain assembly, a transmission unit lifting device, a power unit lifting device and a lifting weight measuring device, and the transmission unit lifting device and the power unit lifting device are detachably connected; a main lifting ring at one end of the main lifting chain component is connected with the lifting weight measuring device, a plurality of main lifting chains at the other end are respectively connected with top surface connecting lifting rings of the transmission unit lifting device and the power unit lifting device, and the connecting position can be adjusted according to the gravity center of the lifting device; the transmission unit hoisting device and the power unit hoisting device are provided with a plurality of sub-hoisting chains, the lower ends of the sub-hoisting chains are connected with hoisting points of the hoisting device, and the positions of the sub-hoisting chains can be adjusted according to the positions of the hoisting points of the hoisting device. The multi-scene and multi-process hoisting requirements can be met, and the multi-point hoisting rapid leveling and weight measuring functions are achieved.

Description

Technical Field

[0001] This invention relates to the field of armored vehicle propulsion system technology, specifically to a modular and universal power unit hoisting device. Background Technology

[0002] To meet the overall design requirements of powertrain systems for vehicles with high power density, high mobility, and high environmental adaptability, modular powertrain systems with multiple tonnages, serialization, universality, and various forms (transverse powertrain, longitudinal powertrain, and separate use of power, transmission, and cooling units, etc.) have become a research hotspot. However, during final assembly, each vehicle architecture requires a dedicated lifting device for hoisting operations, and dedicated lifting devices for multi-tonnage and multi-modal powertrain configurations are not interchangeable; the lifting points of integrated modular powertrains are difficult to level quickly, and the adjustment range is limited; lifting devices are basically used for overall hoisting, but in actual use, power units, transmission units, engines, generators, drive motors, controllers, and cooling units all have separate hoisting requirements; during final assembly, the weight measurement of components and assemblies requires weighing with a weighbridge before being hoisted to the final assembly section, making it impossible to achieve parallel weighing and final assembly processes; existing dedicated lifting devices cannot meet the above requirements, which is not conducive to improving assembly and adjustment efficiency and cannot support the efficient development of multi-tonnage, serialization, universality, and multi-form modular powertrains.

[0003] Therefore, those skilled in the art need to design a modular and universal power unit hoisting device that can meet the needs of multi-tonnage, universal, serialized, and multi-form modular power unit assembly (horizontal power transmission unit, longitudinal power transmission unit, and separate use of power, transmission, and heat dissipation units, etc.), and has integrated multi-point hoisting, rapid leveling, and weighing functions; and can also solve the multi-process hoisting operation requirements of power unit, transmission unit, engine, generator, drive motor, controller, and heat dissipation unit, so as to solve the above-mentioned problems existing in the prior art. Summary of the Invention

[0004] This invention provides a modular and universal power unit hoisting device, which solves the problem that existing dedicated hoisting devices are not conducive to improving assembly and adjustment efficiency and cannot support the efficient development of multi-tonnage, serialized, universal, and multi-form modular power units.

[0005] This invention is achieved through the following technical solution:

[0006] A modular and universal power unit lifting device includes a main lifting chain assembly 1, a transmission unit lifting device 2, a power unit lifting device 3, and a lifting and weighing device 4. The transmission unit lifting device 2 and the power unit lifting device 3 are detachably connected. One end of the main lifting chain assembly 1 has a main lifting ring 11 connected to the lifting and weighing device 4, and the other end has multiple main lifting chains 12 connected to the top surface of the transmission unit lifting device 2 and the power unit lifting device 3 respectively, with the connection positions adjustable according to the center of gravity of the lifting device. The transmission unit lifting device 2 and the power unit lifting device 3 are equipped with multiple sub-lifting chains 24, with the lower end of each sub-lifting chain 24 connected to the lifting point of the lifting device. The position of each sub-lifting chain can be adjusted according to the position of the lifting point of the lifting device to ensure that the sub-lifting chains are lifted vertically.

[0007] Furthermore, both the main suspension chain 12 and the sub-suspension chain 24 are equipped with chain adjustment devices and shaft thread adjustment devices. The adjustment devices are used for large-range distance adjustments, while the shaft thread adjustment devices are used for small-range adjustments.

[0008] Furthermore, the main lifting chain assembly 1 includes a main lifting ring 11 and a main lifting chain 12. The main lifting chain assembly 1 can be used to lift integrated lifting devices, or to lift transmission units or power units separately, or it can be used as a standalone lifting device. The main lifting ring 11 is in the form of a male and female ring and is equipped with a detection label 112 for detecting plastic deformation caused by chain overload and pitch elongation caused by wear of the chain link diameter. The main lifting chain 12 is mounted on the main lifting ring 11 and includes an anti-detachment spur hook 121, a main lifting chain 122, and a shaft tensioner 123. One end of the main lifting chain 12 is the anti-detachment spur hook 121 for connecting the lifting point, and the other end is a chain link for connecting the main lifting ring 11. The shaft tensioner 123 is set in the middle. The shaft tensioner 123 has two functions: chain link adjustment and thread adjustment. Chain link adjustment is used for large-range adjustments, and thread adjustment is used for small-range fine adjustments. It also has a protection function.

[0009] Furthermore, the transmission unit hoisting device 2 includes a transmission unit balance beam 21, a lifting ring 22, a shackle 23, and a sub-lifting chain 24. The lifting ring 22 is installed on the upper surface of the transmission unit balance beam 21 at the attachment point and is used to connect the main lifting chain assembly 1. The sub-lifting chain 24 is installed at each connection hole of the transmission unit balance beam 21 through the shackle 23.

[0010] Furthermore, the balance beam 21 of the drive unit includes a balance beam frame 211 of the drive unit, which has a "square" shape when viewed from above. Inside the balance beam frame 211 of the drive unit, stiffeners 212 of the balance beam of the drive unit are arranged according to the requirements of rigidity, strength, lifting points and lifting points; on its upper surface, a lifting attachment seat 213 of the drive unit is arranged for installing the shackle 23 and connecting with the main lifting chain assembly 1; on its transverse end face, a transverse connecting flange 214 and a longitudinal connecting flange 215 of the drive unit are arranged for connecting with the lifting device 3 of the power unit to form an integral lifting device; on its lower surface, a main lifting point hole plate 216 and an extended lifting point hole plate 217 of the drive unit are arranged for installing the shackle 23 and connecting with the sub-lifting chain 24, and the hole positions can be selected according to the shape of the hoisted component.

[0011] Furthermore, the sub-lifting chain 24 is hung below the balance beam 21 of the drive unit and includes an anti-drop sheep's head hook 241, a sub-lifting chain 242 and a shaft tensioner 243 of the sub-lifting chain; both ends of the sub-lifting chain 24 are anti-drop sheep's head hooks, one end is used to connect the shackle 23 of the balance beam of the drive unit, and the other end is used to connect the lifting point of the hoisting device. The shaft tensioner 243 is arranged in the middle. The shaft tensioner has two functions of chain link adjustment and thread adjustment. The chain link adjustment is used for large-range adjustment, and the thread adjustment is used for small-range delicate adjustment, and it has a protection function.

[0012] Further, the lifting device 3 of the power unit includes a balance beam 31 of the power unit, a lifting ring 22, a shackle 23 and a sub-lifting chain 24. The lifting ring 22 is installed at the attachment seat on the upper surface of the balance beam 31 of the drive unit for connecting the main lifting chain assembly 1; the sub-lifting chain 24 is installed at each lifting point hole plate of the balance beam 31 of the power unit through the shackle 23, and different lifting point hole plate positions are arranged on the balance beam 31 of the power unit.

[0013] Furthermore, the balance beam 31 of the power unit includes a balance beam frame 311 of the power unit, which has a "square" shape when viewed from above. Inside the balance beam frame 311 of the power unit, stiffeners 312 of the balance beam of the power unit are arranged according to the requirements of rigidity and strength and lifting points; on its upper surface, a lifting attachment seat 313 of the power unit is arranged for installing the shackle 23 and connecting with the main lifting chain assembly 1; on its transverse end face, a transverse connecting flange 314 of the power unit is arranged, and on its longitudinal end face, a longitudinal connecting flange 315 of the power unit is arranged for connecting with the lifting device 2 of the drive unit to form an integral lifting device; on its lower surface, a main lifting point hole plate 316 and an extended lifting point hole plate 317 of the power unit are arranged for installing the shackle 23 and connecting with the sub-lifting chain 24, and the hole positions can be selected according to the shape of the hoisted component.

[0014] Furthermore, the transmission unit hoisting device 2 and the power unit hoisting device 3, together with the main hoisting chain assembly 1, can achieve modular hoisting functions through different combinations, including but not limited to the main hoisting chain assembly alone mode, the transmission unit hoisting device and the main hoisting chain assembly group mode, the power unit hoisting device and the main hoisting chain assembly group mode, the horizontal layout mode, the vertical layout mode, and the dual group mode.

[0015] The horizontal layout mode is that the transmission unit hoisting device 2 and the power unit hoisting device 3 are arranged in parallel. The transmission unit hoisting device 2 is fastened together with bolts and nuts through the transverse connecting flange 214 of the transmission unit and the transverse connecting flange 314 of the power unit.

[0016] The longitudinal layout mode is a T-shaped arrangement of the transmission unit hoisting device 2 and the power unit hoisting device 3. The transmission unit hoisting device 2 is fastened together with bolts and nuts through the longitudinal connecting flange 215 of the transmission unit and the longitudinal connecting flange 315 of the power unit.

[0017] The dual-group mode is a self-grouping mode of the transmission unit hoisting device 2 or the power unit hoisting device 3. The transmission unit hoisting device 2 or the power unit hoisting device 3 is fastened together with bolts and nuts through the transverse connecting flange 214 of the transmission unit or the transverse connecting flange 314 of the power unit.

[0018] Furthermore, the transmission unit balance beam frame 211 and the power unit balance beam frame 311 are formed by welding square profiles, and steel or lightweight metal materials are selected according to the load-bearing requirements.

[0019] This invention provides a modular and universal power unit hoisting device that meets the hoisting needs of modular power units in multiple scenarios and processes, including multi-tonnage, serialized, universal, and various forms (horizontal power transmission unit, longitudinal power transmission unit, and separate use of power, transmission, and heat dissipation devices, etc.). It also has multi-point hoisting, rapid leveling, and weight measurement functions, improving the efficiency of final assembly and adjustment, and enhancing the R&D efficiency of different types of power units for armored vehicles. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the modular and universal power unit hoisting device of the present invention;

[0021] Figure 2 This is a schematic diagram of the main suspension chain assembly of the present invention;

[0022] Figure 3 This is a schematic diagram of the main lifting ring of the present invention;

[0023] Figure 4 This is a schematic diagram of the main suspension chain of the present invention;

[0024] Figure 5 This is a schematic diagram of the transmission unit hoisting device of the present invention;

[0025] Figure 6 a and b are schematic diagrams of the balance beam of the transmission unit of the present invention;

[0026] Figure 7 This is a schematic diagram of the lifting ring of the present invention;

[0027] Figure 8 This is a schematic diagram of the shackle of the present invention;

[0028] Figure 9 This is a schematic diagram of the sub-hanging chain of the present invention;

[0029] Figure 10 This is a schematic diagram of the power unit hoisting device of the present invention;

[0030] Figure 11a , Figure 11b This is a schematic diagram of the power unit balance beam of the present invention;

[0031] Figure 12 This is a schematic diagram of the longitudinally placed auxiliary connecting beam of the power unit of the present invention;

[0032] Figure 13 This is a schematic diagram of the hoisting and weighing device of the present invention;

[0033] Figure 14 This is a schematic diagram of the horizontally positioned power unit hoisting device of the present invention;

[0034] Figure 15 This is a schematic diagram of the longitudinally positioned power unit hoisting device of the present invention;

[0035] Among them, 1-main lifting chain assembly, 2-transmission unit lifting device, 3-power unit lifting device, 4-lifting weighing device, 11-main lifting ring, 12-main lifting chain, 111-four-limb main lifting ring, 112-inspection sign, 121-anti-detachment horn hook, 122-main lifting chain, 123-shaft tensioner, 21-transmission unit balance beam, 22-lifting ring, 23-shackle, 24-sub-lifting chain, 211-transmission unit balance beam frame, 212-transmission unit balance beam reinforcing rib, 213-transmission unit lifting bracket, 214-transmission unit transverse connecting flange, 215-transmission unit longitudinal... 216 – Main lifting point orifice plate of transmission unit; 217 – Extended lifting point orifice plate of transmission unit; 241 – Anti-detachment hook of sub-lifting chain; 242 – Sub-lifting chain; 243 – Sub-lifting chain shaft tensioner; 31 – Balance beam of power unit; 22 – Lifting ring; 23 – Shackle; 24 – Sub-lifting chain; 311 – Balance beam frame of power unit; 312 – Balance beam reinforcing rib of power unit; 313 – Lifting mount of power unit; 314 – Transverse connecting flange of power unit; 315 – Longitudinal connecting flange of power unit; 316 – Main lifting point orifice plate of power unit; 317 – Extended lifting point orifice plate of power unit. Detailed Implementation

[0036] like Figure 1-15 As shown, this invention is a modular and universal power unit lifting device, including a main lifting chain assembly 1, a transmission unit lifting device 2, a power unit lifting device 3, and a lifting and weighing device 4. The transmission unit lifting device 2 and the power unit lifting device 3 are bolted together. One end of the main lifting chain assembly 1 has a main lifting ring 11 connected to the lifting and weighing device 4, and the other end has four main lifting chains 12 connected to the top surface connecting rings 22 of the transmission and power unit lifting devices. The connection positions can be adjusted according to the center of gravity of the lifting device to ensure the transmission and power balance beam is horizontal. Each sub-lifting chain 24 is connected at one end to a shackle 23 installed on the balance beam and at the other end to a lifting point of the lifting device. The position of each sub-lifting chain can be adjusted according to the position of the lifting point to ensure vertical lifting. Each sub-lifting chain is equipped with a chain adjustment device and a shaft thread adjustment device; the chain adjustment device is used for large-range adjustments, and the shaft thread adjustment device is used for small-range adjustments.

[0037] The modular and universal power unit hoisting device is designed to meet the needs of integrated and distributed use of power transmission devices, and can be divided into horizontal layout, vertical layout, and individual unit use mode.

[0038] The main hoisting chain assembly 1 includes a main lifting ring 11 and a main hoisting chain 12. The main hoisting chain assembly 1 can hoist the integrated hoisting device, or can hoist the transmission unit or the power unit hoisting device separately, or can be used as a separate lifting tool, that is, used as a four-claw hook. The main lifting ring 11 is in the form of a mother-daughter ring. In this solution, it is a four-limbed main lifting ring 111, and a detection sign 112 is provided to detect plastic deformation caused by chain overload and pitch elongation caused by wear of the chain link diameter, etc. Once the above problems occur, the main lifting ring 11 should be replaced in time; the main hoisting chain 12 is hung on the main lifting ring 11, and includes an anti-drop sheep's horn hook 121, a main hoisting chain 122 and a shaft tensioner 123. One end of the main hoisting chain 12 is an anti-drop sheep's horn hook 121 for connecting the lifting point, and the other end is a chain link for connecting the main lifting ring 11. The shaft tensioner 123 is arranged in the middle. The shaft tensioner 123 has two functions: chain link adjustment and thread adjustment. The chain link adjustment is used for large-range adjustment, and the thread adjustment is used for small-range fine adjustment. And it has a protection function. The main hoisting chain 122 is an integral hoisting chain, and the shaft tensioner 123 is integrated in the middle to prevent the occurrence of safety problems in hoisting caused by the failure of the shaft thread.

[0039] The transmission unit hoisting device 2 includes a transmission unit balance beam 21, a lifting ring 22, a shackle 23 and a sub-hoisting chain 24. The lifting ring 22 is installed on the upper surface attachment seat of the transmission unit balance beam 21 through bolts for connecting the main hoisting chain assembly 1; the sub-hoisting chain 24 is installed at each connection hole of the transmission unit balance beam 21 through the shackle 23 and can be used to hoist the integrated transmission unit, transmission device, radiator and integrated heat dissipation unit, etc. The positions of different lifting point hole plates of the transmission unit balance beam 21 meet the hoisting requirements of different sizes and specifications of the transmission unit and other devices.

[0040] The transmission unit balance beam 21 is the main body of the transmission unit hoisting device 2, and includes a transmission unit balance beam frame 211. The top view shape is a "square" character, which is welded and formed by square profiles. Steel or lightweight metal materials can be selected according to the load-bearing requirements; and inside the transmission unit balance beam frame 211, transmission unit balance beam reinforcing ribs 212 are arranged according to the requirements of rigidity, strength, lifting points and lifting points; a transmission unit hoisting attachment seat 213 is arranged on its upper surface for installing the shackle 23 and connecting with the main hoisting chain assembly 1; a transmission unit horizontal connecting flange 214 and a transmission unit longitudinal connecting flange 215 are arranged on its transverse end face for connecting with the power unit hoisting device 3 to form an integrated hoisting device; a transmission unit main lifting point hole plate 216 and a transmission unit extended lifting point hole plate 217 are arranged on its lower surface for installing the shackle 23 and connecting with the sub-hoisting chain 24. The hole positions can be selected according to the shape of the hoisted part to achieve universal hoisting.

[0041] The sling ring 22 and shackle 23 are both standard structures and are selected according to the load-bearing weight of the hoisting device.

[0042] The sub-hoisting chain 24 is hung under the balance beam 21 of the drive unit. Its structure is basically the same as that of the main hoisting chain 12, and related components of different tonnage standards are selected according to the hoisting weight. It includes a sub-hoisting chain anti-drop goat's horn hook 241, a sub-hoisting chain 242, and a sub-hoisting chain shaft tensioner 243. Both ends of the sub-hoisting chain 24 are anti-drop goat's horn hooks. One end is used to connect the shackle 23 of the balance beam of the drive unit, and the other end is used to connect the hoisting point of the hoisting device. The sub-hoisting chain shaft tensioner 243 is arranged in the middle. The shaft tensioner has two functions: chain link adjustment and thread adjustment. Chain link adjustment is used for large-range adjustment, and thread adjustment is used for small-range fine adjustment. And it has a protection function. The sub-hoisting chain 24 is an integral hoisting chain, and the shaft tensioner is integrated in the middle to prevent hoisting safety problems caused by the failure of the shaft thread.

[0043] The hoisting device 3 of the power unit includes a balance beam 31 of the power unit, a sling ring 22, a shackle 23, and a sub-hoisting chain 24. The sling ring 22 is installed on the attachment seat on the upper surface of the balance beam 31 of the drive unit through bolts and is used to connect the main hoisting chain assembly 1; the sub-hoisting chain 24 is installed at the hole plates of each hoisting point of the balance beam 31 of the power unit through the shackle 23 and can be used to hoist different specifications of power units, engines, generators, etc. after integration. Different hole plate positions are set on the balance beam 31 of the power unit to meet the hoisting requirements of different sizes of drive units and other devices.

[0044] The balance beam 31 of the power unit is the main body of the hoisting device 3 of the power unit and includes a balance beam frame 311 of the power unit. Its top view shape is a "square" and it is welded with square profiles. Steel or lightweight metal materials can be selected according to the load-bearing requirements; and inside the balance beam frame 311 of the power unit, balance beam stiffeners 312 of the power unit are arranged according to the requirements of rigidity and strength and hoisting points; a hoisting attachment seat 313 of the power unit is arranged on its upper surface for installing the shackle 23 and connecting with the main hoisting chain assembly 1; a lateral connecting flange 314 of the power unit is arranged on its lateral end face, and a longitudinal connecting flange 315 of the power unit is arranged on its longitudinal end face for connecting with the hoisting device 2 of the drive unit to form an integral hoisting device; a main hoisting point hole plate 316 and an extended hoisting point hole plate 317 of the power unit are arranged on its lower surface for installing the shackle 23 and connecting with the sub-hoisting chain 24. The hole positions can be selected according to the shape of the hoisted component to achieve universal hoisting.

[0045] The transmission unit lifting device 2 and the power unit lifting device 3, together with the main lifting chain assembly 1, achieve modular lifting functionality through different combinations to meet the lifting needs of different power transmission devices or other complex components. These combinations include, but are not limited to, a standalone main lifting chain assembly mode, a group mode of the transmission unit lifting device and the main lifting chain assembly, a group mode of the power unit lifting device and the main lifting chain assembly, a horizontal layout mode, a vertical layout mode, and a dual-group mode (two components forming a group), etc.

[0046] The horizontal layout involves the transmission unit hoisting device 2 and the power unit hoisting device 3 arranged in parallel. The transmission unit hoisting device 2 is secured together with bolts and nuts via the transmission unit's transverse connecting flange 214 and the power unit's transverse connecting flange 314; it supports the horizontal layout of the power transmission device, i.e., the power device and transmission device have parallel axes. It also features adjustable hoisting points in the length and width of the transmission device, adjustable spacing between the power device and the transmission device, and adjustable length and width of the power device; thus achieving flexible hoisting of the modular power transmission device.

[0047] The longitudinal layout is a "T"-shaped arrangement of the transmission unit hoisting device 2 and the power unit hoisting device 3. The transmission unit hoisting device 2 is fastened together with bolts and nuts via the longitudinal connecting flanges 215 and 315 of the transmission unit and power unit, respectively; it supports the longitudinal layout of the power transmission device, i.e., the axial normal orientation of the power unit and transmission unit. It features adjustable length and width of the transmission device, adjustable spacing between the power unit and transmission device, and adjustable length and width of the power unit. An auxiliary longitudinal connecting beam for the power unit is provided according to stress requirements to enhance connection strength and facilitate adjustment of the main lifting chain's lifting point and center of gravity. If necessary, additional transmission unit connecting flanges can be added to adjust the positions of the power unit and transmission unit. This achieves flexible hoisting functionality for the modular power transmission device.

[0048] The dual-group mode refers to either the transmission unit lifting device 2 or the power unit lifting device 3 forming a group. The transmission unit lifting device 2 (or power unit lifting device 3) is fastened together using bolts and nuts via the transmission unit transverse connecting flange 214 (or power unit transverse connecting flange 314); it is used for lifting complex devices with high loads and multiple points. It also features flexible adjustment at each point.

Claims

1. A modular and universal power unit hoisting device, characterized in that: It includes a main lifting chain assembly (1), a transmission unit lifting device (2), a power unit lifting device (3), and a lifting weighing device (4). The transmission unit lifting device (2) and the power unit lifting device (3) are detachably connected. One end of the main lifting chain assembly (1) is connected to the lifting weighing device (4) via a main lifting ring (11). The other end has multiple main lifting chains (12) that are respectively connected to the lifting rings (22) on the top surfaces of the transmission unit lifting device (2) and the power unit lifting device (3). The connection positions can be adjusted according to the center of gravity of the lifting device. The transmission unit lifting device (2) and the power unit lifting device (3) are equipped with multiple sub-lifting chains (24). The lower end of the sub-lifting chains (24) is connected to the lifting point of the lifting device. The position of each sub-lifting chain can be adjusted according to the position of the lifting point of the lifting device to ensure that the sub-lifting chains are lifted vertically.

2. The modular and universal power unit hoisting device according to claim 1, characterized in that: Both the main suspension chain (12) and the sub-suspension chain (24) are equipped with chain adjustment devices and shaft thread adjustment devices. The adjustment devices are used for large-range distance adjustments, and the shaft thread adjustment devices are used for small-range adjustments.

3. The modular and universal power unit hoisting device according to claim 1, characterized in that: The main lifting chain assembly (1) includes a main lifting ring (11) and a main lifting chain (12). The main lifting chain assembly (1) can be used to lift integrated lifting devices, or to lift transmission units or power units separately. It can also be used as a standalone lifting device. The main lifting ring (11) is a mother-daughter ring type and is equipped with a detection label (112) to detect plastic deformation caused by chain overload and pitch elongation caused by wear of the chain link diameter. The main lifting chain (12) is hung on the main lifting ring (11). Above, there are anti-detachment horn hooks (121), main lifting chain (122) and shaft tensioner (123). One end of the main lifting chain (12) is an anti-detachment horn hook (121) for connecting the lifting point, and the other end is a chain link for connecting the main lifting ring (11). The shaft tensioner (123) is set in the middle. The shaft tensioner (123) has two functions: chain link adjustment and thread adjustment. Chain link adjustment is used for large-range adjustment, and thread adjustment is used for small-range fine adjustment. It also has a protection function.

4. The modular and universal power unit hoisting device according to claim 1, characterized in that: The transmission unit hoisting device (2) includes a transmission unit balance beam (21), a lifting ring (22), a shackle (23), and a sub-lifting chain (24). The lifting ring (22) is installed on the upper surface of the transmission unit balance beam (21) at the attachment point and is used to connect the main lifting chain assembly (1). The sub-lifting chain (24) is installed at each connection hole of the transmission unit balance beam (21) through the shackle (23).

5. A modular and universal power unit hoisting device according to claim 4, characterized in that: The balance beam (21) of the drive unit includes a balance beam frame (211) of the drive unit, which has a "square" shape when viewed from above. Inside the balance beam frame (211) of the drive unit, reinforcing ribs (212) of the drive unit balance beam are arranged according to the requirements of rigidity, strength, lifting points and lifting points. A lifting attachment seat (213) of the drive unit is arranged on its upper surface for installing the shackle (23) and connecting with the main lifting chain assembly (1). Transverse connection flanges (214) and longitudinal connection flanges (215) of the drive unit are arranged on its transverse end face for connecting with the lifting device (3) of the power unit to form an integral lifting device. Main lifting point hole plates (216) and extended lifting point hole plates (217) of the drive unit are arranged on its lower surface for installing the shackle (23) and connecting with the sub-lifting chain (24), and the hole positions can be selected according to the shape of the lifted component.

6. The modular and universal power unit hoisting device according to claim 4, characterized in that: The sub-lifting chain (24) is hung under the balance beam (21) of the drive unit and includes an anti-drop sheep's head hook (241) of the sub-lifting chain, a sub-lifting chain (242) and a shaft tensioner (243) of the sub-lifting chain. Both ends of the sub-lifting chain (24) are anti-drop sheep's head hooks. One end is used to connect the shackle (23) of the balance beam of the drive unit, and the other end is used to connect the lifting point of the lifting device. The shaft tensioner (243) is arranged in the middle. The shaft tensioner has two functions of chain link adjustment and thread adjustment. Chain link adjustment is used for large-range adjustment, and thread adjustment is used for small-range fine adjustment, and it has a protection function.

7. The modular and universal power unit hoisting device according to claim 1, characterized in that: The lifting device (3) of the power unit includes a balance beam (31) of the power unit, a lifting ring (22), a shackle (23) and a sub-lifting chain (24). The lifting ring (22) is installed at the attachment seat on the upper surface of the balance beam (31) of the drive unit for connecting with the main lifting chain assembly (1). The sub-lifting chain (24) is installed at each lifting point hole plate of the balance beam (31) of the power unit through the shackle (23), and different lifting point hole plate positions are set on the balance beam (31) of the power unit.

8. A modular and universal power unit hoisting device according to claim 7, characterized in that: The balance beam (31) of the power unit includes a balance beam frame (311) of the power unit, which has a "square" shape when viewed from above. Inside the balance beam frame (311) of the power unit, reinforcing ribs (312) of the balance beam of the power unit are arranged according to the requirements of rigidity, strength and lifting points. A lifting attachment seat (313) of the power unit is arranged on its upper surface for installing the shackle (23) and connecting with the main lifting chain assembly (1). A transverse connection flange (314) of the power unit is arranged on its transverse end face, and a longitudinal connection flange (315) of the power unit is arranged on its longitudinal end face for connecting with the lifting device (2) of the drive unit to form an integral lifting device. Main lifting point hole plates (316) and extended lifting point hole plates (317) of the power unit are arranged on its lower surface for installing the shackle (23) and connecting with the sub-lifting chain (24), and the hole positions can be selected according to the shape of the lifted component.

9. A modular and universal power unit hoisting device according to claim 1, characterized in that: The transmission unit hoisting device (2) and the power unit hoisting device (3) are combined with the main hoisting chain assembly (1) in different ways to realize the modular hoisting function, including but not limited to the main hoisting chain assembly alone mode, the transmission unit hoisting device and the main hoisting chain assembly group mode, the power unit hoisting device and the main hoisting chain assembly group mode, the horizontal layout mode, the vertical layout mode and the dual group mode. The horizontal layout mode is that the transmission unit hoisting device (2) and the power unit hoisting device (3) are arranged in parallel. The transmission unit hoisting device (2) is fastened together with bolts and nuts through the transmission unit horizontal connecting flange (214) and the power unit horizontal connecting flange (314). The longitudinal layout mode is that the transmission unit hoisting device (2) and the power unit hoisting device (3) are arranged in a "T" shape. The transmission unit hoisting device (2) is fastened together with bolts and nuts through the longitudinal connecting flange (215) of the transmission unit and the longitudinal connecting flange (315) of the power unit. The dual-group mode is a group mode in which the transmission unit hoisting device (2) or the power unit hoisting device (3) is itself. The transmission unit hoisting device (2) or the power unit hoisting device (3) is fastened together with bolts and nuts through the transverse connecting flange (214) of the transmission unit or the transverse connecting flange (314) of the power unit.

10. A modular and universal power unit hoisting device according to claim 1, characterized in that: The transmission unit balance beam frame (211) and the power unit balance beam frame (311) are formed by welding square profiles, and steel or lightweight metal materials are selected according to the load-bearing requirements.

Images