Heavy diffuser dismounting and hoisting tool

Abstract

The utility model discloses a heavy diffuser dismounting and hoisting tool, which belongs to the technical field of diffuser dismounting and comprises a bearing plate, a screw hole is arranged in the center of the bearing plate, a screw rod is arranged in the screw hole, and a support plate is arranged at the lower end of the screw rod. At least two sets of clamping assemblies are evenly distributed on the periphery of the bearing plate, each clamping assembly comprises a supporting arm which is arranged on the side wall of the bearing plate and extends in the direction away from a screw hole, an adjusting long hole is formed in each supporting arm in the length direction, and a pull rod is arranged in each adjusting long hole in a penetrating mode; according to the utility model, the acting force during cooperation of multiple persons can be simulated, the uniform distribution of the force of each pulling force point is ensured, and unnecessary stress or damage to a diffuser or an impeller is avoided; and single-person operation is realized without cooperation of multiple persons, so that the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of diffuser disassembly, and in particular relates to a heavy diffuser disassembly and hoisting tool. Background Art

[0002] The diffuser is the main component of the centrifugal air compressor and is installed around the impeller of the compressor. The diffuser includes a diffuser disc, which is the base of the diffuser and is installed in the gear cavity of the air compressor. The end face opposite to the air inlet is the air guide end face. The diffuser disc has a central circular hole. The air guide end face of the diffuser disc is evenly distributed with a number of diffuser blades, and a diffuser air duct is formed between adjacent diffuser blades.

[0003] The diffuser and the impeller are fitted with an interference fit to ensure the stability and efficiency of the equipment during operation. However, when disassembly and maintenance are required, in order to reduce the tight bonding force caused by the interference fit, the diffuser must be preheated for a period of time by fire heating, aiming to slightly increase the gap between the diffuser and the impeller to facilitate subsequent disassembly operations. Then 2-3 people are required to work together and apply appropriate force to ensure smooth pulling. This disassembly method is not only time-consuming and labor-intensive, but also places high demands on the operator's skill level and collaboration ability. Summary of the invention

[0004] In response to the problems existing in the prior art, the utility model provides a heavy-duty diffuser disassembly and lifting tooling, which can simulate the force when multiple people collaborate, while ensuring that the force at each pulling point is evenly distributed, avoiding unnecessary stress or damage to the diffuser or impeller; it enables single-person operation without the need for multiple people to cooperate, thereby greatly improving work efficiency.

[0005] The utility model is implemented as follows: a heavy diffuser disassembly and lifting tool comprises a bearing plate, a screw hole is arranged at the center of the bearing plate, a screw rod is arranged in the screw hole, and a support plate is arranged at the lower end of the screw rod;

[0006] At least two groups of clamping assemblies are evenly distributed on the periphery of the supporting plate, and the clamping assembly includes a support arm arranged on the side wall of the supporting plate and extending away from the screw hole. An adjustment long hole is opened in the support arm along the length direction, and a pull rod is arranged through the adjustment long hole. The lower end of the pull rod is provided with a groove for clamping with the diffuser blade.

[0007] Furthermore, the lower end of the screw is provided with a hemispherical structure, and the support plate is provided with a hemispherical groove corresponding to the lower end of the screw, thereby ensuring accurate alignment and effective support between the screw and the support plate, while reducing the verticality requirement between the screw and the support plate.

[0008] Furthermore, a threaded section is provided at the upper end of the pull rod, and the threaded section of the pull rod is fixed in the adjusting long hole through a nut.

[0009] Furthermore, two nuts are provided, and the two nuts are respectively placed on the upper and lower end surfaces of the support arm. The nuts placed on the upper and lower end surfaces of the support arm can ensure the fixation of the upper end position of the pull rod, thereby ensuring the reliable transmission of the pulling force during disassembly and lifting.

[0010] Furthermore, a set screw is arranged in the pull rod at the position relative to the slot, so as to tightly connect the pull rod with the diffuser blade and ensure the reliability of the hoisting.

[0011] Furthermore, a rotating handle is horizontally arranged at the upper end of the screw.

[0012] Furthermore, the bearing plate is a circular plate, and three groups of clamping assemblies are provided, and the three groups of clamping assemblies are evenly distributed along the circumference of the bearing plate.

[0013] The utility model has the following advantages and technical effects: Due to the adoption of the above technical solution, it can simulate the force of multiple people working together, and at the same time ensure that the force distribution of each pulling point is uniform, avoiding unnecessary stress or damage to the diffuser or impeller; it can realize single-person operation without the need for multiple people to cooperate, thereby greatly improving work efficiency. By adjusting the design of the long hole, the position of the pull rod can be adjusted. It meets the disassembly requirements of diffusers of different specifications and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of installation and use provided by an embodiment of the utility model.

[0016] In the figure: 1. load-bearing plate; 2. screw; 2-1. hemispherical structure; 2-2. turning handle; 3. support plate; 3-1. hemispherical groove; 4. clamping assembly; 4-1. support arm; 4-2. adjusting long hole; 4-3. pull rod; 4-4. slot; 4-5. threaded section; 4-6. nut; 4-7. set screw; 5. diffuser. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0018] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0019] like Figure 1 and Figure 2 As shown, the present application provides a heavy diffuser disassembly and lifting tool, including a bearing plate 1, a screw hole is provided at the center position of the bearing plate 1, a screw rod 2 is provided in the screw hole, a support plate 3 is provided at the lower end of the screw rod 2, and preferably, a rotating handle 2-2 is horizontally provided at the upper end of the screw rod 2.

[0020] At least two groups of clamping assemblies 4 are evenly distributed on the periphery of the supporting plate 1, and the clamping assembly 4 includes a support arm 4-1 arranged on the side wall of the supporting plate 1 and extending away from the screw hole, and an adjustment long hole 4-2 is opened in the support arm 4-1 along the length direction, and a pull rod 4-3 is penetrated in the adjustment long hole 4-2, and the lower end of the pull rod 4-3 is provided with a slot 4-4 for clamping with the diffuser blade.

[0021] Furthermore, the lower end of the screw 2 is provided with a hemispherical structure 2-1, and the support plate 3 is provided with a hemispherical groove 3-1 corresponding to the lower end of the screw 2. This ensures accurate alignment and effective support between the screw 2 and the support plate 3, while reducing the verticality requirement between the screw 2 and the support plate 3.

[0022] The upper end of the pull rod 4-3 is provided with a threaded section 4-5, and the threaded section 4-5 of the pull rod 4-3 is fixed in the adjustment slot 4-2 by a nut 4-6. Preferably, two nuts 4-6 are provided, and the two nuts 4-6 are respectively placed on the upper and lower end faces of the support arm 4-1. The nuts 4-6 placed on the upper and lower end faces of the support arm 4-1 can ensure the fixation of the upper end position of the pull rod 4-3, thereby ensuring the reliable transmission of the pulling force during disassembly and lifting.

[0023] A set screw 4-7 is arranged in the pull rod 4-3 at the position relative to the slot 4-4, so that the pull rod 4-3 can be tightly connected to the diffuser blade to ensure the reliability of the hoisting.

[0024] Specifically, the bearing plate 1 is a circular plate, and three groups of clamping assemblies 4 are provided. The three groups of clamping assemblies 4 are evenly distributed along the circumference of the bearing plate 1 .

[0025] When in use, first install the tie rod 4-3 in a suitable position in the adjusting slot 4-2 through the nut 4-6, and connect the slot 4-4 at the lower end of the tie rod 4-3 to the diffuser blade through the set screw 4-7, and the hemispherical structure 2-1 at the lower end of the screw 2 is supported in the hemispherical groove 3-1 of the support plate 3. The operator rotates the handle 2-2, so that the bearing plate 1 generates an upward force, and the bearing plate 1 drives the clamping assembly 4 to pull the diffuser 5 upward.

[0026] By adopting the above technical solution, the force of multiple people working together can be simulated, and at the same time, the force distribution of each pulling point is ensured to be uniform, thereby avoiding unnecessary stress or damage to the diffuser 5 or the impeller; single-person operation is achieved without the need for multiple people to cooperate, thereby greatly improving work efficiency. By adjusting the design of the long hole 4-2, the position of the pull rod 4-3 can be adjusted. It meets the disassembly requirements of diffusers 5 of different specifications and has strong applicability.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heavy diffuser disassembly and lifting tool, characterized in that: It comprises a bearing plate, a screw hole is arranged at the center of the bearing plate, a screw rod is arranged in the screw hole, and a support plate is arranged at the lower end of the screw rod; At least two groups of clamping assemblies are evenly distributed on the periphery of the supporting plate, and the clamping assembly includes a support arm arranged on the side wall of the supporting plate and extending away from the screw hole. An adjustment long hole is opened in the support arm along the length direction, and a pull rod is arranged through the adjustment long hole. The lower end of the pull rod is provided with a groove for clamping with the diffuser blade.

2. The heavy diffuser disassembly and lifting tool according to claim 1 is characterized in that: The lower end of the screw rod is provided with a hemispherical structure, and the support plate is provided with a hemispherical groove corresponding to the lower end of the screw rod.

3. The heavy-duty diffuser disassembly and lifting tool according to claim 1 or 2, characterized in that: The upper end of the pull rod is provided with a threaded section, and the threaded section of the pull rod is fixed in the adjusting long hole through a nut.

4. The heavy diffuser disassembly and lifting tool according to claim 3 is characterized in that: Two nuts are provided, and the two nuts are respectively placed on the upper and lower end surfaces of the support arm.

5. The heavy diffuser disassembly and lifting tool according to claim 1 is characterized in that: A set screw is arranged in the pull rod at a position relative to the slot.

6. The heavy diffuser disassembly and hoisting tool according to claim 1, characterized in that: A rotating handle is horizontally arranged at the upper end of the screw rod.

7. The heavy diffuser disassembly and lifting tool according to claim 1 is characterized in that: The bearing plate is a circular plate, and three groups of clamping components are provided. The three groups of clamping components are evenly distributed along the circumference of the bearing plate.

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