A dismounting tool for a balance nut of a reciprocating compressor

Abstract

The utility model discloses a kind of dismounting tools of reciprocating compressor balancing nut, including manual hydraulic pump, hydraulic piston, rotating tong, adapter, fixed plate and balancing nut;Adapter is circular ring structure with opening and its outer periphery is equipped with rack;One end of rotating tong is circular ring structure with opening, and one end is equipped with rack guide rail;The inner periphery of the circular ring structure with opening of rotating tong is equipped with rack;Adapter is inlaid in the circular ring structure with opening of rotating tong;The fixed end of hydraulic piston is hinged with it by lug on fixed plate, and the free end of hydraulic piston is equipped with clamping shaft on both sides;Clamping shaft and the rack guide rail of one end of rotating tong are engaged;Hydraulic piston is connected with the manual hydraulic pump;Adapter and balancing nut are all equipped with opening, and the opening position of both is corresponding and fixed by connecting bolt.Compared with prior art, the beneficial effects of the utility model are: the convenient dismounting of large torque balancing nut is realized.

Description

Technical Field

[0001] This utility model relates to the field of compressor mechanical tooling, specifically to a tool for disassembling and assembling the balance nut of a reciprocating compressor. Background Technology

[0002] Reciprocating compressors convert the crankshaft's rotational motion into the piston's reciprocating motion via connecting rods. Because compressors have multiple stages, the piston diameter and specifications vary with the cylinder diameter in each stage, causing weight imbalance on both sides of the compressor during operation, resulting in additional unbalanced forces. To reduce this imbalance, a balance nut is often installed on the crosshead of the connecting rod. This balance nut increases in size as the compressor's power and the unbalanced force increase. The balance nut is mounted on the piston rod and connected to the crosshead, located within the compressor's central cavity. The space is confined, and conventional disassembly and assembly can only be done with a wrench. Larger balance nuts are difficult to disassemble or assemble in such a confined space using only a wrench and manual labor. Utility Model Content

[0003] This utility model provides a tool for disassembling and assembling the balance nut of a reciprocating compressor, so as to facilitate the disassembly and assembly of the high-torque balance nut.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tool for disassembling and assembling a balance nut of a reciprocating compressor, comprising a manual hydraulic pump, a hydraulic piston, a rotating wrench, an adapter, a fixing plate, and a balance nut; the adapter has an open-shaped annular structure with a rack on its outer circumference; one end of the rotating wrench has an open-shaped annular structure, and the other end has a rack guide rail; the inner circumference of the open-shaped annular structure of the rotating wrench has a rack; the adapter is embedded in the open-shaped annular structure of the rotating wrench, and the inner circumferential rack of the open-shaped annular structure of the rotating wrench meshes with the outer circumferential rack of the open-shaped annular structure of the adapter; the fixed end of the hydraulic piston is hinged to it through an ear plate on the fixing plate, and the free end of the hydraulic piston has retaining pins on both sides; the retaining pins engage with the rack guide rail at one end of the rotating wrench; the hydraulic piston is connected to the manual hydraulic pump; both the adapter and the balance nut have openings, and the positions of the openings correspond to each other and are fixed by connecting bolts.

[0005] As an optimization, the adapter and the balance nut have multiple openings that are equidistant from each other.

[0006] As an optimization, the fixing plate has an "L" shaped structure with openings on its side ends.

[0007] As an optimization, the rack guide rail at one end of the adapter has an inclined guide rail surface.

[0008] Compared with existing technologies, the beneficial effects of this utility model are as follows: It provides an effective and efficient tool for disassembling and installing balance nuts, solving the problem of inconvenient installation and disassembly of balance nuts in large compressor units. This tool, through the structural cooperation of components such as a manual hydraulic pump, hydraulic piston, rotating wrench, adapter, and connecting bolts, enables the disassembly and installation of balance nuts within the relatively small installation space of the compressor. This solves the problem of difficult disassembly and installation of balance nuts in large compressor units, facilitates on-site installation, commissioning, and maintenance work, and also reduces the risk of damage to components. Attached Figure Description

[0009] Figure 1 This is an installation diagram of an embodiment of the present invention.

[0010] Figure 2 This is a disassembly diagram during the implementation of an embodiment of this utility model.

[0011] Figure 3 This is a three-dimensional structural diagram of the rotating wrench of this utility model.

[0012] Figure 4 This is a three-dimensional structural diagram of the adapter of this utility model.

[0013] Figure 5 This is a three-dimensional structural diagram of the balance nut of this utility model.

[0014] The components include: 1. Manual hydraulic pump; 2. Hydraulic piston; 3. Rotary wrench; 4. Adapter; 5. Connecting bolt; 6. Fixing plate; 7. Balance nut. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] A tool for disassembling and assembling a balance nut on a reciprocating compressor includes a manual hydraulic pump 1, a hydraulic piston 2, a rotating wrench 3, an adapter 4, a fixing plate 6, and a balance nut 7. The adapter 4 has an open annular structure with a rack on its outer circumference. One end of the rotating wrench 3 has an open annular structure, and the other end has a rack guide rail. A rack is provided on the inner circumference of the open annular structure of the rotating wrench 3. The adapter 4 is embedded in the open annular structure of the rotating wrench 3, and the rotating wrench... The inner circumferential rack of the open-shaped annular structure of the clamp 3 meshes with the outer circumferential rack of the open-shaped annular structure of the adapter 4; the fixed end of the hydraulic piston 2 is hinged to it through the ear plate on the fixed plate 6, and the free end of the hydraulic piston 2 is provided with locking shafts on both sides; the locking shafts are engaged with the rack guide rail at one end of the rotating clamp 3; the hydraulic piston 2 is connected to the manual hydraulic pump 1; both the adapter 4 and the balance nut 7 are provided with openings, and the positions of the openings of the two are corresponding and fixed by connecting bolts 5.

[0019] As an optimization, the adapter 4 and the balance nut 7 have multiple openings that are equidistant from each other, ensuring a stable connection.

[0020] As an optimization, the fixing plate 6 has an "L" shaped structure with an opening on its side. The opening facilitates the fixing of the device to a bracket on one side of the reciprocating compressor.

[0021] As an optimization, the rack guide rail at one end of the adapter 4 has an inclined guide surface. This ensures that the rack guide rail of the adapter can cooperate with the retaining pins on both sides of the free end of the hydraulic piston during use.

[0022] Its working principle is as follows: The functions of each component are as follows: Manual hydraulic pump 1: Power output for the installation and removal of compressor balance nut 7, used to provide the torque for installation and the power for removal and removal.

[0023] Hydraulic piston 2: Used to transmit power to manual hydraulic pump 1, and connects rotating wrench 3 and manual hydraulic pump 1.

[0024] Rotating wrench 3: Used to engage with adapter 4 to provide power transmission.

[0025] Adapter 4: Since the rotary wrench 3 and the balance nut 7 cannot be directly connected, adapter 4 is used to connect the rotary wrench 3 and the balance nut 7.

[0026] Connecting bolt 5: Used to connect and fix the balance nut 7 and the adapter 4.

[0027] Below are detailed instructions for installing the balance nut 7 (refer to...). Figure 1 ): Ensure there is no oil, particles, or other impurities between the balance nut 7 and the crosshead. Manually tighten the balance nut 7 until it cannot be tightened further. Install the adapter 4 onto the piston rod, and connect the adapter 4 and the balance nut 7 using the connecting bolts 5, ensuring the opening of the adapter 4 faces outwards. Install the rotating wrench 3 with the wrench slot facing upwards (ensuring the balance nut 7 rotates clockwise). Install the fixed hydraulic piston 2, using the fixing plate 6 to mount it onto the bracket on one side of the reciprocating compressor. Connect the manual hydraulic pump 1 until the rated torque value is reached.

[0028] The disassembly and assembly steps for balance nut 7 are similar to the installation steps (refer to...). Figure 2 The difference lies in the installation direction of the rotating wrench. During the installation and removal of the balance nut, the wrench slot faces downward (to ensure that the balance nut is removed by rotating counterclockwise).

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tool for disassembling and assembling the balance nut of a reciprocating compressor, characterized in that: The system includes a manual hydraulic pump (1), a hydraulic piston (2), a rotating wrench (3), an adapter (4), a fixing plate (6), and a balance nut (7); the adapter (4) has an open annular structure and a rack on its outer circumference; one end of the rotating wrench (3) has an open annular structure and the other end has a rack guide rail; the inner circumference of the open annular structure of the rotating wrench (3) has a rack; the adapter (4) is embedded in the open annular structure of the rotating wrench (3), and the open annular structure of the rotating wrench (3) has a rack. The inner circumferential rack of the annular structure meshes with the outer circumferential rack of the open annular structure of the adapter (4); the fixed end of the hydraulic piston (2) is hinged to it through the ear plate on the fixed plate (6), and the free end of the hydraulic piston (2) is provided with a retaining shaft on both sides; the retaining shaft is engaged with the rack guide rail at one end of the rotating wrench (3); the hydraulic piston (2) is connected to the manual hydraulic pump (1); the adapter (4) and the balance nut (7) are both provided with openings, and the opening positions of the two are corresponding and fixed by connecting bolts (5).

2. The tool for disassembling and assembling the balance nut of a reciprocating compressor according to claim 1, characterized in that: The adapter (4) and the balance nut (7) have multiple openings, which are equidistant from each other.

3. The tool for disassembling and assembling the balance nut of a reciprocating compressor according to claim 1, characterized in that: The fixing plate (6) has an "L" shaped structure and an opening on its side end.

4. The tool for disassembling and assembling the balance nut of a reciprocating compressor according to claim 1, characterized in that: The rack guide rail at one end of the adapter (4) has an inclined guide rail surface.

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