Auxiliary lifting appliance for impeller assembly

Abstract

The utility model relates to the technical field of compressor production, and discloses an impeller assembly auxiliary lifting appliance which comprises a lifting plate in a shape like a Chinese character'ji '. A connecting base is fixed to the lower end of the hoisting plate and rotationally connected with an impeller connecting part. A plurality of linearly-arranged hoisting holes are formed in the upper portion of the hoisting plate, and a fine adjustment hole is formed in the end, close to the connecting part, of the hoisting plate. A plurality of hoisting holes are formed and matched, so that the hoisted impeller can be conveniently adjusted to be in a balanced state; and the impeller state can be further finely adjusted by forming the fine adjustment holes, so that the impeller is convenient to install, and the working intensity, difficulty and potential safety hazards of impeller installation are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor production, in particular to an auxiliary lifting device for impeller assembly. Background Art

[0002] The overall structure of a steam compressor is relatively complex, and is mainly composed of three basic units: a compression system, a steam cooler, and a lubrication system. The steam compressor is a key device in a heat recovery system that increases the temperature and pressure of the generated steam by compressing it. In the production process of existing steam compressors, the installation of the impeller requires the cooperation of multiple workers due to the heavy weight of the impeller, and the work intensity and installation difficulty are both high. At the same time, application publication number CN 110893602 A discloses a disassembly and assembly device and disassembly and assembly structure for a compressor impeller, which has the advantages of being labor-saving, convenient, and easy to operate. Although the disassembly and assembly device can lift the impeller, the lifted impeller may still be in a tilted state, and the axial hole of the impeller and the corresponding mounting shaft are not aligned and cannot be adjusted. It is still very difficult to install the impeller on the shaft, and the limitations are large. Utility Model Content

[0003] The purpose of the utility model is to provide an impeller assembly auxiliary lifting device, which can conveniently adjust the lifted impeller to a balanced state by setting multiple lifting holes and selecting the lifting holes;

[0004] The impeller state can be further fine-tuned by setting the fine-tuning hole, thereby facilitating the installation of the impeller and reducing the work intensity, difficulty and safety hazards of the impeller installation.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] An impeller assembly auxiliary lifting device includes a lifting plate in the shape of a Chinese character "𠃌"; a connecting seat is fixed at the lower end of the lifting plate, and an impeller connecting portion is rotatably connected to the connecting seat;

[0007] A plurality of linearly arranged lifting holes are formed on the upper portion of the lifting plate.

[0008] Through the above technical solution, the impeller is installed on the impeller connection part, and the lifting plate is in the shape of a "𠃌" character, so that the impeller can be roughly located in the middle of the lifting plate; then the lifting rope is connected to one of the lifting holes through the shackle, and the rope lifts the lifting plate to lift the impeller, which facilitates the installation of the impeller; the rope and shackle can be adjusted according to the weight of the impeller and connected to the appropriate lifting hole to make the impeller axially reach a horizontal or nearly horizontal state; at the same time, the rope and shackle can also be connected to two of the lifting holes, which can make the state of the lifting plate and impeller more stable when being lifted.

[0009] By setting a plurality of lifting holes, the center of gravity position of the impeller can be conveniently matched, and it can also be suitable for lifting work of impellers of various specifications.

[0010] The utility model is further configured such that a fine adjustment hole is formed on one end of the lifting plate near the connection portion. The fine adjustment hole can be used in conjunction with a corresponding tool such as a crowbar or a wrench to fine-tune the impeller mounted on the impeller connection portion, thereby facilitating assembly work.

[0011] The impeller connection portion of the present utility model can be configured as follows: a transverse through hole is formed on the connection seat;

[0012] The impeller connection portion includes a bolt inserted into the transverse through hole, the protruding end of the bolt passing through the transverse through hole is screwed with a connecting plate, and the end of the connecting plate away from the bolt is sleeved with multiple screws.

[0013] By screwing the screws into the existing mounting holes of the impeller or the threaded holes opened on the impeller, the screws are locked to fix the impeller on the connecting plate, and then the lifting rope and the shackle drive the lifting plate to move up, and the lifting plate lifts the impeller through the connecting seat and the impeller connecting part. Through the action of the impeller itself, the impeller will automatically move down to the lowest end, and then tighten the bolts 301. The connecting plate is tightly pressed against the end face of the connecting seat by pulling the bolts 301, thereby preventing the connecting plate and the impeller from rotating freely, and the impeller will not shake or rotate freely, etc., which can facilitate the assembly of the impeller.

[0014] The impeller connection portion of the present invention may also be configured as follows: a transverse through hole is formed on the connection seat;

[0015] The impeller connection part includes a bolt inserted into the transverse through hole, the protruding end of the bolt passing through the transverse through hole is screwed with an end plate, the end plate is fixedly connected to the connecting plate through an extension tube, and a plurality of screws are sleeved on the end of the connecting plate away from the extension tube.

[0016] The impeller is also fixed to the connecting plate by screws. By tightening the bolts, the end plate can be pressed against the end face of the connecting seat, thereby restricting the impeller and preventing it from rotating or shaking freely. An end plate and an extension pipe are provided between the connecting plate and the connecting seat, which can make the position of the impeller closer to the middle and lower position of the lifting plate, and the center of gravity of the impeller can be located in the middle area of ​​the lifting plate, which facilitates the stability of the lifting work.

[0017] Preferably, a reinforcing rib is provided between the end of the extension tube close to the screw and the connecting plate. The provision of the reinforcing rib can improve the connection stability and reliability between the extension tube and the connecting plate.

[0018] Preferably, a boss is formed on one end of the connecting plate connected to the impeller, and the screw passes through the boss. When the impeller is installed, the mounting end face of the impeller is fixed to the end face of the boss by the screw, which can reduce interference between the impeller and components such as the connecting plate and can also facilitate installation.

[0019] The outstanding effects of the utility model are:

[0020] Compared with the existing technology, by setting multiple lifting holes and selecting the lifting holes, the lifted impeller can be easily adjusted to a balanced state, and it can also be adapted to the lifting of impellers of various specifications;

[0021] The impeller state can be further fine-tuned by setting fine-tuning holes, thereby facilitating the installation of the impeller and reducing the workload, difficulty and safety hazards of the impeller installation;

[0022] The end plate or connecting plate can be locked by bolts to prevent the impeller from rotating freely during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model;

[0024] Figure 2 This is a partial schematic diagram of the impeller connection portion of Example 1 of the present utility model;

[0025] Figure 3 This is a structural diagram of the connecting plate of Example 1 of the utility model;

[0026] Figure 4 Schematic diagram of the assembly of Example 1 and the impeller;

[0027] Figure 5 This is a schematic structural diagram of Example 2 of the present utility model;

[0028] Figure 6 Schematic diagram of the assembly of Example 2 and the impeller.

[0029] Reference numerals: 10, hanging plate; 101, hanging hole; 102, fine-tuning hole;

[0030] 20. Connecting seat; 201. Horizontal through hole;

[0031] 30. Impeller connection; 301. Bolt; 302. End plate; 303. Extension tube; 304. Connecting plate; 305. Screw; 306. Reinforcement plate; 307. Boss;

[0032] 90. Impeller. DETAILED DESCRIPTION

[0033] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] The following references Figures 1 to 6 The following describes the embodiments of the present invention: Example

[0035] An impeller assembly auxiliary lifting device, such as Figure 1 、 Figure 4 As shown, it includes a lifting plate 10, which is in the shape of a Chinese character "𠃌"; a connecting seat 20 is fixed at the lower end of the lifting plate 10, and an impeller connecting portion 30 is rotatably connected to the connecting seat 20;

[0036] A plurality of linearly arranged lifting holes 101 are formed on the upper portion of the lifting plate 10 .

[0037] Through the above technical solution, the impeller 90 is installed on the impeller connection part, and the impeller is generally located in the middle of the hanging plate;

[0038] Then the lifting rope is connected to one of the lifting holes through a shackle, and the rope lifts the lifting plate and thus the impeller, making it easier to install the impeller. The rope and shackle can be adjusted according to the weight of the impeller and connected to the appropriate lifting hole to make the impeller axis reach a horizontal or nearly horizontal state. At the same time, the rope and shackle can also be connected to two of the lifting holes to make the lifting plate and impeller more stable when being lifted.

[0039] By setting a plurality of lifting holes, the center of gravity position of the impeller can be conveniently matched, and it can also be suitable for lifting work of impellers of various specifications.

[0040] Preferably, a fine-tuning hole 102 is formed at one end of the lifting plate 10 close to the connecting portion 30. The fine-tuning hole can be used in conjunction with a corresponding tool such as a crowbar or a wrench to fine-tune the impeller mounted on the impeller connecting portion to facilitate assembly work.

[0041] The connecting seat 20 is formed with a transverse through hole 201;

[0042] like Figure 1 、 Figure 2 As shown, the impeller connection portion 30 of this embodiment includes a bolt 301 inserted into the transverse through hole 201, and the protruding end of the bolt 301 passing through the transverse through hole 201 is screwed with an end plate 302, and the end plate 302 is fixedly connected to a connecting plate 304 through an extension tube 303, and a plurality of screws 305 are sleeved on the end of the connecting plate 304 away from the extension tube 303.

[0043] The impeller is fixed to the connecting plate by screws 305. By tightening the bolts 301, the end plate can be tightly attached to the end face of the connecting seat, thereby restricting the impeller to prevent it from rotating or shaking freely. An end plate and an extension tube are provided between the connecting plate and the connecting seat, which can make the position of the impeller closer to the middle and lower position of the lifting plate, and the center of gravity of the impeller can be located in the middle area of ​​the lifting plate, which facilitates the stability of the lifting work.

[0044] like Figure 2As shown, a reinforcing rib 306 is provided between the end of the extension tube 303 close to the screw 305 and the connecting plate 304 in this embodiment. The provision of the reinforcing rib can improve the connection stability and reliability between the extension tube and the connecting plate.

[0045] like Figure 3 As shown, in this embodiment, a boss 307 is formed on one end of the connecting plate 304 that is connected to the impeller, and the screw 305 passes through the boss 307. When installing the impeller, the mounting end face of the impeller is fixed to the end face of the boss by the screw 305, which can reduce interference between the impeller and components such as the connecting plate and also facilitate installation. Example

[0046] An impeller assembly auxiliary lifting device, such as Figure 5 、 Figure 6 As shown, it includes a lifting plate 10, which is in the shape of a Chinese character "𠃌"; a connecting seat 20 is fixed at the lower end of the lifting plate 10, and an impeller connecting portion 30 is rotatably connected to the connecting seat 20;

[0047] A plurality of linearly arranged lifting holes 101 are formed on the upper portion of the lifting plate 10 .

[0048] A fine-tuning hole 102 is formed at one end of the lifting plate 10 close to the connecting portion 30 .

[0049] The connecting seat 20 is formed with a transverse through hole 201;

[0050] The impeller connection portion 30 of this embodiment includes a bolt 301 inserted into the transverse through hole 201. The protruding end of the bolt 301 passing through the transverse through hole 201 is screwed with a connecting plate 304. The end of the connecting plate 304 away from the bolt 301 is sleeved with multiple screws 305.

[0051] By screwing the screws into the existing mounting holes of the impeller 90 or the threaded holes opened on the impeller, the screws are locked to fix the impeller on the connecting plate, and then the lifting rope and the shackle drive the lifting plate to move up, and the lifting plate lifts the impeller through the connecting seat and the impeller connecting part. Through the action of the impeller itself, the impeller will automatically move down to the lowest end, and then tighten the bolts 301. The connecting plate is tightly pressed against the end face of the connecting seat by pulling the bolts 301, thereby preventing the connecting plate and the impeller from rotating freely, and the impeller will not shake or rotate freely, etc., which can facilitate the assembly of the impeller.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications based on the above assumptions should also be regarded as within the scope of protection of the present invention.

Claims

1. An impeller assembly auxiliary lifting device, comprising a lifting plate (10), characterized in that: The hanging plate (10) is in the shape of a Chinese character "𠃌"; a connecting seat (20) is fixed to the lower end of the hanging plate (10), and an impeller connecting portion (30) is rotatably connected to the connecting seat (20); A plurality of linearly arranged hanging holes (101) are formed on the upper portion of the hanging plate (10).

2. The impeller assembly auxiliary lifting device according to claim 1, characterized in that: A fine-tuning hole (102) is formed on one end of the hanging plate (10) close to the connecting portion (30).

3. The impeller assembly auxiliary lifting device according to claim 1, characterized in that: A transverse through hole (201) is formed on the connecting seat (20); The impeller connecting portion (30) comprises a bolt (301) inserted into the transverse through hole (201), the protruding end of the bolt (301) passing through the transverse through hole (201) is screwed with a connecting plate (304), and the end of the connecting plate (304) away from the bolt (301) is sleeved with a plurality of screws (305).

4. The impeller assembly auxiliary lifting device according to claim 1, characterized in that: A transverse through hole (201) is formed on the connecting seat (20); The impeller connecting portion (30) comprises a bolt (301) inserted into the transverse through hole (201), the protruding end of the bolt (301) passing through the transverse through hole (201) is screwed onto an end plate (302), the end plate (302) is fixedly connected to a connecting plate (304) via an extension tube (303), and a plurality of screws (305) are sleeved onto one end of the connecting plate (304) away from the extension tube (303).

5. The impeller assembly auxiliary lifting device according to claim 4, characterized in that: A reinforcing rib plate (306) is provided between the end of the extension tube (303) close to the screw (305) and the connecting plate (304).

6. The impeller assembly auxiliary lifting device according to claim 4, characterized in that: A boss (307) is formed on one end of the connecting plate (304) connected to the impeller, and the screw (305) passes through the boss (307).

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