Container internal part concentricity adjusting device

Abstract

The invention belongs to concentricity adjusting devices, and particularly relates to a concentricity adjusting device for parts in a container. The container internal part concentricity adjusting device comprises a supporting structure, a bearing assembly and an adjusting supporting assembly are arranged at the end of the supporting structure, and a measuring mechanism is arranged on the supporting structure. The adjusting device has the advantages that the adjusting device is mainly composed of profile steel, plates, round steel, polyethylene round bars, bolts, chains, rolling bearing standard parts and the like and is easy to manufacture and use; (2) the concentricity adjusting precision is high, and the concentricity can reach 0.05 mm under the action of an adjusting device; and (3) the adjusting device can be operated by a single person, manpower is reduced, the concentricity adjusting quality is ensured, the working efficiency is improved, and the construction quality and the safety risk are reduced.

Description

Technical Field

[0001] This invention pertains to concentricity adjustment devices, specifically relating to a device for adjusting the concentricity of internal components of a container. Background Technology

[0002] Currently, due to the structural characteristics of large cylindrical containers, after the containers are transported over long distances to the site, internal components need to be assembled, and high precision must be ensured during the assembly process. For example, a large cylindrical container has a diameter of 2400mm and a height of 2410mm; its internal components consist of two independent parts with an irregular structure, an overall diameter of 1495mm, and a height of 868mm. According to the assembly process of large cylindrical containers, the concentricity between the components and the large cylindrical container needs to be adjusted. The concentricity relative to the container must be less than 0.10mm, resulting in high assembly precision and significant adjustment difficulty. Because a concentricity adjustment device is lacking, existing conventional operating methods such as hand-operated hoists, jacks, and wooden beams are typically used for adjustment during the adjustment phase, which is inefficient and difficult to meet design requirements. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention provides a device for adjusting the concentricity of internal components of a container.

[0004] The present invention is implemented as follows: a device for adjusting the concentricity of internal components of a container, comprising a support structure, a bearing assembly and an adjusting support assembly at the end of the support structure, and a measuring mechanism on the support structure.

[0005] As described above, the concentricity adjustment device for internal components of a container has a top surface of a cross-shaped structure, a support assembly at the end of the cross-shaped structure, a measuring mechanism assembly on the support assembly, and a bracket below each arm of the cross-shaped structure.

[0006] As described above, in a container internal component concentricity adjustment device, the bearing assembly includes an axial rolling bearing and a radial rolling bearing, wherein the axial rolling bearing is disposed on the end face of the support structure, and the radial rolling bearing is disposed below the support structure.

[0007] As described above, the concentricity adjustment device for internal components of a container includes two types of support components: an adjustable support component and a fixed support component. The adjustable support component is located at the ends of two adjacent arms of the "+" shaped structure, and the fixed support component is located at the ends of the other two adjacent arms of the "+" shaped structure.

[0008] As described above, the concentricity adjustment device for internal components of a container includes an adjustable support assembly comprising an adjustable support and a locking device. The adjustable support adjusts its position via a thread, an axial rolling bearing is mounted on the adjustable support, and the locking device is used to lock the adjustable support.

[0009] In the container internal component concentricity adjustment device described above, the fixed support assembly is a fixed support, and the axial rolling bearing is mounted on the fixed support.

[0010] As described above, in a container internal component concentricity adjustment device, an adjustment mechanism is provided on the support structure bracket, which is used to adjust the position of the adjusted component.

[0011] As described above, a concentricity adjustment device for internal components of a container includes a lifting eye bolt on the top surface of the supporting structure.

[0012] The concentricity adjustment device for internal components of a container as described above, wherein the measuring mechanism is a dial indicator.

[0013] The significant effects of this invention are: (1) The adjustment device is mainly composed of profile steel, plate, round steel, polyethylene round bar, bolt, chain, rolling bearing standard parts, etc., and is simple to manufacture and use; (2) The concentricity adjustment accuracy is high, and the concentricity can reach 0.05mm through the action of the adjustment device; (3) The adjustment device can be operated by a single person, reducing manpower. This invention ensures the quality of concentricity adjustment, improves work efficiency, and reduces construction quality and safety risks. Attached Figure Description

[0014] Figure 1 Schematic diagram of concentricity adjustment device

[0015] Figure 2 Schematic diagram of fixed support, rolling bearing and locking device

[0016] Figure 3 Schematic diagram of adjustment mechanism

[0017] Figure 4 Schematic diagram of guide vane installation to pump casing

[0018] Figure 5 Schematic diagram of concentricity adjustment device installed on pump casing

[0019] In the diagram: 1. Lifting eye bolt, 2. Support structure, 3. Adjustable support, 4. Axial rolling bearing, 5. Radial rolling bearing, 6. Fixed support, 7. Locking device, 8. Adjustment mechanism, 9. Measuring mechanism, 10. Dial indicator, 11. Guide vane, 12. Main pump casing, 13. Adjustable support. Detailed Implementation

[0020] The adjustment device mainly consists of a support structure, a measuring mechanism, a locking device, and an adjusting mechanism. The support structure is the main structure of the adjustment device, containing eight sets of rolling bearings. Four sets of axial rolling bearings allow the adjustment device to move axially along the container flange face, while the other four sets of radial rolling bearings allow it to move radially along the container wall, facilitating measurement of whether the concentricity meets design requirements after adjustment. One end of the support structure is fixed, and the other end is adjustable, allowing the support structure dimensions to be adjusted according to the container flange size, ensuring the adjustment device is fully positioned on the flange. Before adjustment, the locking device is used to fix the adjustment device to the inner wall of the container, preventing stress on the rolling bearings and avoiding damage during adjustment that could cause measurement deviations. The adjusting mechanism moves internal components away from the container center and back towards the center, allowing for multi-directional adjustment of the container components' positions within the container. After adjustment, the locking device is released, and the measuring mechanism measures the concentricity and parallelism of the internal components with the container.

[0021] Here is a specific example.

[0022] During the installation of the RSR750 reactor coolant pump (hereinafter referred to as the main pump) in a nuclear power plant, guide vanes need to be installed. Adjusting the concentricity of the guide vanes with the main pump casing is a crucial point in the installation process. The guide vanes consist of two pieces, with a total weight of 1760 kg and a diameter of 1495 mm. The main pump casing weighs 35705 kg and has a diameter of 2400 mm.

[0023] Step 1: Install the guide vane (component 11) into the pump casing (component 12);

[0024] Step 2: Install the concentricity adjustment device onto the pump casing flange, and use the adjustable support (part 13) to adjust the size of the mechanism so that it is fully in place on the flange and can slide freely.

[0025] Step 3: Rotate the adjustment device around the circumference, read and record the value of the dial gauge of the measuring mechanism;

[0026] Step 4: Use the locking device to fix the adjusting device to the inner wall of the pump casing, so that the rolling bearing is not subjected to force;

[0027] Step 5: Based on the concentricity measurement results, adjust the position of the guide vanes within the pump casing using the adjustment mechanism;

[0028] Step 6: Repeat steps 3 to 5 until the concentricity of the guide vane and the pump casing meets the design requirements (i.e., the concentricity is less than 0.10 mm).

Claims

1. A device for adjusting the concentricity of internal components of a container, characterized in that: It includes a support structure (2), a bearing assembly and an adjusting support assembly are provided at the end of the support structure (2), and a measuring mechanism (9) is provided on the support structure (2).

2. The concentricity adjustment device for internal components of a container as described in claim 1, characterized in that: The top surface of the support structure (2) is a cross shape. A support component is provided at the end of the cross shape, and a measuring mechanism component is provided on the support component. A bracket is provided under each arm of the cross shape.

3. The concentricity adjustment device for internal components of a container as described in claim 2, characterized in that: The bearing assembly includes an axial rolling bearing (4) and a radial rolling bearing (5), wherein the axial rolling bearing (4) is disposed on the end face of the support structure (2) and the radial rolling bearing (5) is disposed below the support structure (2).

4. The concentricity adjustment device for internal components of a container as described in claim 3, characterized in that: The support components include two types: adjustable support components and fixed support components. The adjustable support components are located at the ends of two adjacent arms of the "+" shaped structure, while the fixed support components are located at the ends of the other two adjacent arms of the "+" shaped structure.

5. The concentricity adjustment device for internal components of a container as described in claim 4, characterized in that: The adjustable support assembly includes an adjustable support (3) and a locking device (7). The adjustable support (3) adjusts its position by means of a thread. An axial rolling bearing (4) is mounted on the adjustable support (3). The locking device (7) is used to lock the adjustable support (3).

6. The concentricity adjustment device for internal components of a container as described in claim 5, characterized in that: The fixed support assembly is a fixed support (6), and the axial rolling bearing (4) is mounted on the fixed support (6).

7. The concentricity adjustment device for internal components of a container as described in claim 6, characterized in that: The support structure (2) is provided with an adjustment mechanism (8), which is used to adjust the position of the adjusted part.

8. The concentricity adjustment device for internal components of a container as described in claim 7, characterized in that: The top surface of the supporting structure (2) is provided with lifting eye bolts (1).

9. The concentricity adjustment device for internal components of a container as described in claim 10, characterized in that: The measuring device (9) is a dial gauge (10).

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