Hoisting tool for mounting coupling of generator

Abstract

The utility model provides a hoisting tool for mounting a coupling of a generator. Comprising a supporting frame, a front left hanging ring, a front right hanging ring, a rear left hanging ring, a rear right hanging ring, a front elastic supporting plate and a rear elastic supporting plate, the front right hanging ring and the rear right hanging ring are arranged in a front-and-back spaced mode, located on the right side of the supporting frame and connected with the supporting frame, and the front left hanging ring and the front right hanging ring as well as the rear left hanging ring and the rear right hanging ring are arranged in a left-and-right spaced mode; the front and rear elastic supporting plates are horizontally arranged in the left-right direction at intervals in the front-back direction, the middles of the front and rear elastic supporting plates protrude downwards in an arc mode, and the front and rear elastic supporting plates are located in the supporting frame and connected with the supporting frame. According to the utility model, the generator coupling is simple and convenient to mount, mounting personnel do not need to directly contact the high-temperature coupling, potential safety hazards are reduced, and mounting efficiency and mounting safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of generator and engine connection technology, and particularly to the field of generator and coupling installation technology, specifically referring to a hoisting tool for installing generator couplings. Background Technology

[0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc.

[0003] Some generator connections use a flexible connection, employing a coupling with a keyway and interference fit. Therefore, during installation, a heater is needed to heat the coupling to 200°C, causing its internal dimensions to expand. This is then quickly aligned and assembled with the generator shaft. As the coupling cools, its internal dimensions shrink, achieving the interference fit requirement. Because this installation process uses an interference fit, it cannot be disassembled after installation and must be quickly and precisely installed in one go.

[0004] The coupling is cylindrical. During installation, the coupling is placed horizontally and lifted using wire shackles and a shackle. It is then placed in a special metal pallet and placed in a heating furnace using a forklift to heat it to the specified temperature. Once the coupling reaches the designated temperature, the furnace door is opened, and the coupling is quickly removed from the furnace and placed near the corresponding generator shaft. The coupling is then lifted again using wire shackles and a shackle. The installer must wear heat-resistant gloves to support the coupling and use a pry bar to fine-tune it, aligning it with the shaft. This allows the coupling to be smoothly and gently inserted into the shaft. The locking clips are then removed, and a pressure plate is used to tighten the coupling, preventing it from slipping out and causing installation failure.

[0005] During installation, the coupling can reach temperatures of around 200°C after heating. Installers need to wear heat-resistant gloves to contact the high-temperature surface of the coupling. Sometimes, when installation conditions are not ideal, the heat-resistant gloves may fail, causing burns to the palms. Alternatively, installation errors may occur, leading to accidents and burns to personnel, posing a safety hazard.

[0006] Therefore, it is desirable to provide a hoisting tool for installing generator couplings, which can simplify the installation of generator couplings, eliminate the need for installers to directly contact the high-temperature couplings, reduce safety hazards, and improve installation efficiency and safety. Utility Model Content

[0007] In order to overcome the shortcomings of the prior art, one objective of this utility model is to provide a hoisting tool for installing generator couplings, which makes the installation of generator couplings simple, eliminates the need for installers to directly contact the high-temperature couplings, reduces safety hazards, improves installation efficiency and safety, and is suitable for large-scale promotion and application.

[0008] Another objective of this utility model is to provide a hoisting tool for installing generator couplings, which is ingeniously designed, simple in structure, easy to manufacture, and has low manufacturing cost, making it suitable for large-scale promotion and application.

[0009] To achieve the above objectives, this utility model provides a lifting tool for installing generator couplings, characterized by comprising a support frame, a front left lifting ring, a front right lifting ring, a rear left lifting ring, a rear right lifting ring, a front elastic support plate, and a rear elastic support plate, wherein:

[0010] The front left lifting ring and the rear left lifting ring are spaced apart from each other and are both located on the left side of the support frame and are both connected to the support frame. The front right lifting ring and the rear right lifting ring are spaced apart from each other and are both located on the right side of the support frame and are both connected to the support frame. The front left lifting ring, the front right lifting ring, the rear left lifting ring, and the rear right lifting ring are all spaced apart from each other.

[0011] Both the front elastic support plate and the rear elastic support plate are horizontally arranged and positioned along the left-right direction, with spacing between them. The middle parts of both the front elastic support plate and the rear elastic support plate protrude downwards in an arc shape. Both the front elastic support plate and the rear elastic support plate are located in the support frame and are connected to the support frame.

[0012] Preferably, the front left lifting ring, the front right lifting ring, the rear left lifting ring, and the rear right lifting ring are all vertically arranged and are all arranged along the left-right direction.

[0013] Preferably, both the front elastic support plate and the rear elastic support plate are elastic steel plates.

[0014] Preferably, the support frame includes a front frame, a rear frame, and a connector. The front frame includes a front base, a front left support column, and a front right support column. The rear frame includes a rear base, a rear left support column, and a rear right support column. The front base and the rear base are spaced apart from each other. The front left support column and the front right support column are both vertically arranged and spaced apart from each other on the front base. The rear left support column and the rear right support column are both vertically arranged and spaced apart from each other on the rear base. The front left support column, the rear left support column, the front right support column, and the rear right support column are all spaced apart from each other. The connector connects the front base and the rear base respectively.

[0015] The front left lifting ring is located to the left of the upper end of the front left support column and is connected to the upper end of the front left support column; the front right lifting ring is located to the right of the upper end of the front right support column and is connected to the upper end of the front right support column; the rear left lifting ring is located to the left of the upper end of the rear left support column and is connected to the upper end of the rear left support column; and the rear right lifting ring is located to the right of the upper end of the rear right support column and is connected to the upper end of the rear right support column.

[0016] The front elastic support plate is located between the upper ends of the front left support column and the front right support column and is connected to the upper ends of the front left support column and the front right support column, respectively. The rear elastic support plate is located between the upper ends of the rear left support column and the rear right support column and is connected to the upper ends of the rear left support column and the rear right support column, respectively.

[0017] More preferably, both the front base and the rear base are base plates, the base plates are horizontally arranged and both are arranged along the left and right directions, the front left support column and the front right support column are respectively arranged on the left and right ends of the front base, and the rear left support column and the rear right support column are respectively arranged on the left and right ends of the rear base.

[0018] Furthermore, the base plate is a rectangular plate.

[0019] More preferably, the front left support column, the front right support column, the rear left support column, and the rear right support column are all rectangular columns, which are vertically arranged and arranged along the front-to-back direction.

[0020] More preferably, there are multiple connectors, and the multiple connectors are arranged at intervals from each other on the left and right.

[0021] More preferably, the connector includes a connecting plate, a front fixing bolt, a front fixing nut, a rear fixing bolt, and a rear fixing nut. The connecting plate is horizontally arranged along the front-rear direction and located between the front left support column, the front right support column, the rear left support column, and the rear right support column. The front end and rear end of the connecting plate abut against the front base and the rear base, respectively. The front end and the rear end of the connecting plate are vertically provided with a front through hole and a rear through hole, respectively. The front base and the rear base are vertically provided with a front through hole and a rear through hole, respectively. The front fixing bolt and the rear fixing bolt are both vertically arranged. The head of the front fixing bolt is located under the front base and abuts against the front base. The middle part of the front fixing bolt vertically passes through the front through hole and the front through hole. The tail of the front fixing bolt is located on the front end of the connecting plate. The front fixing nut is sleeved on and threadedly engaged with the tail of the front fixing bolt and abuts against the front end of the connecting plate. The head of the rear fixing bolt is located under the rear base and abuts against the rear base. The middle part of the rear fixing bolt vertically passes through the rear through hole and the rear through hole. The tail of the rear fixing bolt is located on the rear end of the connecting plate. The rear fixing nut is sleeved on and threadedly engaged with the tail of the rear fixing bolt and abuts against the rear end of the connecting plate.

[0022] Furthermore, the front through hole is an elongated through hole, which is arranged along the front-rear direction.

[0023] The main beneficial effects of this utility model are as follows:

[0024] 1. The hoisting tool for installing generator couplings according to this utility model includes a support frame, a front left lifting ring, a front right lifting ring, a rear left lifting ring, a rear right lifting ring, a front elastic support plate, and a rear elastic support plate. The front left and rear left lifting rings are spaced apart from each other and are both located on the left side of the support frame and connected to the support frame. The front right and rear right lifting rings are spaced apart from each other and are both located on the right side of the support frame and connected to the support frame. The front left and front right lifting rings, as well as the rear left and rear right lifting rings, are spaced apart from each other. The front and rear elastic support plates are both horizontally positioned and arranged along the left-right direction, and are spaced apart from each other. The middle parts of the front and rear elastic support plates both protrude downwards in an arc shape. The front and rear elastic support plates are both located in the support frame and connected to the support frame. Therefore, it simplifies the installation of generator couplings, eliminates the need for installers to directly contact the high-temperature couplings, reduces safety hazards, improves installation efficiency and safety, and is suitable for large-scale application.

[0025] 2. The hoisting tool for installing generator couplings of this utility model includes a support frame, a front left lifting ring, a front right lifting ring, a rear left lifting ring, a rear right lifting ring, a front elastic support plate, and a rear elastic support plate. The front left and rear left lifting rings are spaced apart from each other and are both located on the left side of the support frame and connected to the support frame. The front right and rear right lifting rings are spaced apart from each other and are both located on the right side of the support frame and connected to the support frame. The front left and front right lifting rings, as well as the rear left and rear right lifting rings, are spaced apart from each other. The front and rear elastic support plates are both horizontally positioned and arranged along the left-right direction, and are spaced apart from each other. The middle parts of the front and rear elastic support plates both protrude downwards in an arc shape. The front and rear elastic support plates are both located in the support frame and connected to the support frame. Therefore, its design is ingenious, its structure is simple, its manufacturing is convenient, its manufacturing cost is low, and it is suitable for large-scale promotion and application.

[0026] These and other objects, features and advantages of this utility model will be fully apparent from the following detailed description and drawings, and can be achieved by the means, devices and combinations thereof specifically pointed out in the description of the utility model. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of a specific embodiment of the hoisting tool for installing generator couplings according to this utility model.

[0028] (Symbol Explanation)

[0029] 1. Support frame;

[0030] 11 Front frame; 111 Front base; 112 Front left support column; 113 Front right support column;

[0031] 12 Rear frame; 121 Rear base; 122 Rear left support column; 123 Rear right support column;

[0032] 13 Connecting parts; 131 Connecting plate; 132 Front fixing bolt; 133 Front fixing nut; 134 Rear fixing bolt; 135 Rear fixing nut; 136 Front through hole;

[0033] 2. Front left lifting ring; 3. Front right lifting ring; 4. Rear left lifting ring; 5. Rear right lifting ring; 6. Front elastic support plate; 7. Rear elastic support plate. Detailed Implementation

[0034] In order to better understand the technical content of this utility model, the following embodiments are provided for detailed description.

[0035] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Please see Figure 1 As shown, in a specific embodiment of this utility model, the hoisting tool for installing the generator coupling of this utility model includes a support frame 1, a front left lifting ring 2, a front right lifting ring 3, a rear left lifting ring 4, a rear right lifting ring 5, a front elastic support plate 6, and a rear elastic support plate 7, wherein:

[0037] The front left lifting ring 2 and the rear left lifting ring 4 are spaced apart from each other and are both located on the left side of the support frame 1 and are both connected to the support frame 1. The front right lifting ring 3 and the rear right lifting ring 5 are spaced apart from each other and are both located on the right side of the support frame 1 and are both connected to the support frame 1. The front left lifting ring 2 and the front right lifting ring 3, as well as the rear left lifting ring 4 and the rear right lifting ring 5, are spaced apart from each other.

[0038] The front elastic support plate 6 and the rear elastic support plate 7 are both horizontally arranged and arranged in the left-right direction, and are spaced apart from each other. The middle part of the front elastic support plate 6 and the middle part of the rear elastic support plate 7 both protrude downward in an arc shape. The front elastic support plate 6 and the rear elastic support plate 7 are both located in the support frame 1 and are both connected to the support frame 1.

[0039] The front left lifting ring 2, the front right lifting ring 3, the rear left lifting ring 4, and the rear right lifting ring 5 can be set in any suitable direction. Please refer to [link / reference]. Figure 1 As shown, in a specific embodiment of this utility model, the front left lifting ring 2, the front right lifting ring 3, the rear left lifting ring 4, and the rear right lifting ring 5 are all vertically arranged and are all arranged along the left-right direction.

[0040] The front elastic support plate 6 and the rear elastic support plate 7 can be support plates of any material. In a specific embodiment of this utility model, the front elastic support plate 6 and the rear elastic support plate 7 are both elastic steel plates.

[0041] The support frame 1 can have any suitable configuration; please refer to [link / reference]. Figure 1As shown, in a specific embodiment of this utility model, the support frame 1 includes a front frame 11, a rear frame 12, and a connector 13. The front frame 11 includes a front base 111, a front left support column 112, and a front right support column 113. The rear frame 12 includes a rear base 121, a rear left support column 122, and a rear right support column 123. The front base 111 and the rear base 121 are spaced apart from each other. The front left support column 112 and the front right support column 113 are both vertically arranged and spaced apart from each other on the front base 111. The rear left support column 122 and the rear right support column 123 are both vertically arranged and spaced apart from each other on the rear base 121. The front left support column 112 and the rear left support column 122, as well as the front right support column 113 and the rear right support column 123, are all spaced apart from each other. The connector 13 connects the front base 111 and the rear base 121 respectively.

[0042] The front left lifting ring 2 is located to the left of the upper end of the front left support column 112 and is connected to the upper end of the front left support column 112. The front right lifting ring 3 is located to the right of the upper end of the front right support column 113 and is connected to the upper end of the front right support column 113. The rear left lifting ring 4 is located to the left of the upper end of the rear left support column 122 and is connected to the upper end of the rear left support column 122. The rear right lifting ring 5 is located to the right of the upper end of the rear right support column 123 and is connected to the upper end of the rear right support column 123.

[0043] The front elastic support plate 6 is located between the upper end of the front left support column 112 and the upper end of the front right support column 113 and is connected to the upper ends of the front left support column 112 and the front right support column 113 respectively. The rear elastic support plate 7 is located between the upper end of the rear left support column 122 and the upper end of the rear right support column 123 and is connected to the upper ends of the rear left support column 122 and the rear right support column 123 respectively.

[0044] The front base 111 and the rear base 121 can have any suitable shape, please refer to Figure 1 As shown, in a specific embodiment of this utility model, the front base 111 and the rear base 121 are both base plates, the base plates are horizontally arranged and are both arranged along the left and right directions, the front left support column 112 and the front right support column 113 are respectively arranged on the left and right ends of the front base 111, and the rear left support column 122 and the rear right support column 123 are respectively arranged on the left and right ends of the rear base 121.

[0045] The base plate can have any suitable shape, please refer to Figure 1 As shown, in a specific embodiment of this utility model, the base plate is a rectangular plate.

[0046] The base plate can be any suitable material; in one specific embodiment of this utility model, the base plate is a steel plate.

[0047] The front left support column 112, the front right support column 113, the rear left support column 122, and the rear right support column 123 can have any suitable shape. Please refer to [link / reference]. Figure 1 As shown, in a specific embodiment of this utility model, the front left support column 112, the front right support column 113, the rear left support column 122 and the rear right support column 123 are all rectangular columns, which are arranged vertically and along the front-to-back direction.

[0048] The front left support column 112, the front right support column 113, the rear left support column 122, and the rear right support column 123 can be support columns made of any suitable material. In a specific embodiment of this utility model, the front left support column 112, the front right support column 113, the rear left support column 122, and the rear right support column 123 are all steel columns.

[0049] The number of connectors 13 can be determined as needed. More preferably, there are multiple connectors 13, which are spaced apart from each other. "Multiple" here refers to two or more. Please refer to [link to relevant documentation]. Figure 1 As shown, in a specific embodiment of this utility model, the number of connectors 13 is two.

[0050] The connector 13 can have any suitable configuration; please refer to [link / reference]. Figure 1As shown, in a specific embodiment of this utility model, the connector 13 includes a connecting plate 131, a front fixing bolt 132, a front fixing nut 133, a rear fixing bolt 134, and a rear fixing nut 135. The connecting plate 131 is horizontally arranged along the front-rear direction and located between the front left support column 112, the front right support column 113, the rear left support column 122, and the rear right support column 123. The front end and rear end of the connecting plate 131 abut against the front base 111 and the rear base 121, respectively. The front end and the rear end of the connecting plate 131 are vertically provided with a front through hole 136 and a rear through hole (not shown in the figure), respectively. The front base 111 and the rear base 121 are vertically provided with a front through hole (not shown in the figure) and a rear through hole (not shown in the figure), respectively. The front through hole 136 and the rear through hole are located on the front through hole and the rear through hole, respectively. Both bolt 132 and the rear fixing bolt 134 are vertically arranged. The head of the front fixing bolt 132 is located below and abuts against the front base 111. The middle part of the front fixing bolt 132 vertically passes through the front through hole and the front through hole 136. The tail of the front fixing bolt 132 is located on the front end of the connecting plate 131. The front fixing nut 133 is sleeved on and threadedly engaged with the tail of the front fixing bolt 132 and abuts against the front end of the connecting plate 131. The head of the rear fixing bolt 134 is located below and abuts against the rear base 121. The middle part of the rear fixing bolt 134 vertically passes through the rear through hole and the rear through hole. The tail of the rear fixing bolt 134 is located on the rear end of the connecting plate 131. The rear fixing nut 135 is sleeved on and threadedly engaged with the tail of the rear fixing bolt 134 and abuts against the rear end of the connecting plate 131.

[0051] The front through hole 136 can have any suitable shape, please refer to Figure 1 As shown, in a specific embodiment of this utility model, the front through hole 136 is an elongated through hole, which is arranged along the front-rear direction. With this arrangement, by setting the front through hole 136 as an elongated through hole, the front base 111 can be moved back and forth, thereby adjusting the distance between the front base 111 and the rear base 121, and further adjusting the distance between the front elastic support plate 6 and the rear elastic support plate 7 to accommodate different coupling sizes.

[0052] In use, this invention involves lifting the coupling using wire hooks and shackles, placing it in a special metal pallet, and then using a forklift to place it into a heating furnace to heat it to the specified temperature. Once the coupling reaches the designated temperature, the furnace door is opened, and the coupling is quickly removed from the furnace using a forklift. The coupling is then lifted again using wire hooks and shackles and placed on the front elastic support plate 6 and rear elastic support plate 7 of this invention. When placing the coupling, the front elastic support plate 6 and rear elastic support plate 7 can be adjusted according to the dimensions of the coupling. The coupling automatically adapts to the curvature of the coupling. The coupling is supported by the front elastic support plate 6 and the rear elastic support plate 7. Then, the lock is removed, and the coupling is lifted by the four corner chains through the front left lifting ring 2, the front right lifting ring 3, the rear left lifting ring 4, and the rear right lifting ring 5. The coupling is aligned with the generator shaft head, and the coupling is finely adjusted with a pry bar to align with the shaft head. The coupling is then slowly pushed to allow it to be smoothly and gently inserted into the shaft head in the correct direction. The coupling is then removed, and the coupling is pressed with a pressure plate to complete the installation.

[0053] In actual installation, using this invention to install couplings means that installers rarely, if ever, need to directly contact the high-temperature components—the couplings—thus avoiding the potential for burns during production. Furthermore, it saves time and effort on adjustment steps when the couplings are at high temperatures, reducing time costs and improving the efficiency and safety of this installation process.

[0054] In summary, the hoisting tool for generator coupling installation of this utility model simplifies the installation of generator couplings, eliminates the need for installers to directly contact the high-temperature couplings, reduces safety hazards, and improves installation efficiency and safety. It features an ingenious design, simple structure, easy manufacturing, and low manufacturing cost, making it suitable for large-scale application.

[0055] Therefore, it is evident that the objective of this utility model has been fully and effectively achieved. The function and structural principles of this utility model have been demonstrated and explained in the embodiments. Without departing from the stated principles, any modifications can be made to the implementation methods. Therefore, this utility model includes all modified embodiments based on the spirit and scope of the claims.

Claims

1. A hoisting tool for installing generator couplings, characterized in that, Includes a support frame, front left lifting ring, front right lifting ring, rear left lifting ring, rear right lifting ring, front elastic support plate, and rear elastic support plate, wherein: The front left lifting ring and the rear left lifting ring are spaced apart from each other and are both located on the left side of the support frame and are both connected to the support frame. The front right lifting ring and the rear right lifting ring are spaced apart from each other and are both located on the right side of the support frame and are both connected to the support frame. The front left lifting ring, the front right lifting ring, the rear left lifting ring, and the rear right lifting ring are all spaced apart from each other. Both the front elastic support plate and the rear elastic support plate are horizontally arranged and positioned along the left-right direction, with spacing between them. The middle parts of both the front elastic support plate and the rear elastic support plate protrude downwards in an arc shape. Both the front elastic support plate and the rear elastic support plate are located in the support frame and are connected to the support frame.

2. The hoisting tool for installing generator couplings as described in claim 1, characterized in that, The front left lifting ring, the front right lifting ring, the rear left lifting ring, and the rear right lifting ring are all vertically arranged and are all arranged along the left-right direction.

3. The hoisting tool for installing generator couplings as described in claim 1, characterized in that, Both the front elastic support plate and the rear elastic support plate are elastic steel plates.

4. The hoisting tool for installing generator couplings as described in claim 1, characterized in that, The support frame includes a front frame, a rear frame, and connecting members. The front frame includes a front base, a front left support column, and a front right support column. The rear frame includes a rear base, a rear left support column, and a rear right support column. The front base and the rear base are spaced apart from each other. The front left support column and the front right support column are both vertically arranged and spaced apart from each other on the front base. The rear left support column and the rear right support column are both vertically arranged and spaced apart from each other on the rear base. The front left support column, the rear left support column, the front right support column, and the rear right support column are all spaced apart from each other. The connecting members connect the front base and the rear base respectively. The front left lifting ring is located to the left of the upper end of the front left support column and is connected to the upper end of the front left support column; the front right lifting ring is located to the right of the upper end of the front right support column and is connected to the upper end of the front right support column; the rear left lifting ring is located to the left of the upper end of the rear left support column and is connected to the upper end of the rear left support column; and the rear right lifting ring is located to the right of the upper end of the rear right support column and is connected to the upper end of the rear right support column. The front elastic support plate is located between the upper ends of the front left support column and the front right support column and is connected to the upper ends of the front left support column and the front right support column, respectively. The rear elastic support plate is located between the upper ends of the rear left support column and the rear right support column and is connected to the upper ends of the rear left support column and the rear right support column, respectively.

5. The hoisting tool for installing generator couplings as described in claim 4, characterized in that, Both the front base and the rear base are base plates, which are horizontally arranged and both are arranged along the left and right directions. The front left support column and the front right support column are respectively arranged on the left and right ends of the front base, and the rear left support column and the rear right support column are respectively arranged on the left and right ends of the rear base.

6. The hoisting tool for installing generator couplings as described in claim 5, characterized in that, The base plate is a rectangular plate.

7. The hoisting tool for installing generator couplings as described in claim 4, characterized in that, The front left support column, the front right support column, the rear left support column, and the rear right support column are all rectangular columns, which are vertically arranged and arranged along the front-to-back direction.

8. The hoisting tool for installing generator couplings as described in claim 4, characterized in that, The number of connectors is multiple, and the multiple connectors are arranged at intervals from each other on the left and right.

9. The hoisting tool for installing generator couplings as described in claim 4, characterized in that, The connector includes a connecting plate, a front fixing bolt, a front fixing nut, a rear fixing bolt, and a rear fixing nut. The connecting plate is horizontally arranged along the front-rear direction and located between the front left support column, the front right support column, the rear left support column, and the rear right support column. The front and rear ends of the connecting plate abut against the front base and the rear base, respectively. The front and rear ends of the connecting plate are vertically provided with a front through hole and a rear through hole, respectively. The front base and the rear base are vertically provided with a front through hole and a rear through hole, respectively. The front fixing bolt and the rear fixing bolt are both vertically arranged. The head of the front fixing bolt is located under the front base and abuts against the front base. The middle part of the front fixing bolt vertically passes through the front through hole and the front through hole. The tail of the front fixing bolt is located on the front end of the connecting plate. The front fixing nut is sleeved on and threadedly engaged with the tail of the front fixing bolt and abuts against the front end of the connecting plate. The head of the rear fixing bolt is located under the rear base and abuts against the rear base. The middle part of the rear fixing bolt vertically passes through the rear through hole and the rear through hole. The tail of the rear fixing bolt is located on the rear end of the connecting plate. The rear fixing nut is sleeved on and threadedly engaged with the tail of the rear fixing bolt and abuts against the rear end of the connecting plate.

10. The hoisting tool for installing generator couplings as described in claim 9, characterized in that, The front through hole is an elongated through hole, which is arranged along the front-back direction.

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