Mechanical flange centering corrector

Abstract

The utility model relates to the technical field of flange installation correction, in particular to a mechanical type flange centering corrector which can be adjusted through a positioning structure so as to adapt to the positions of bolt holes in flange plates of different models, and centering correction is carried out on the positions of two sets of flange plates needing to be connected through matching of an adjusting structure and the positioning structure. Meanwhile, the position of the adjusting structure in the positioning structure can be freely adjusted to adapt to flange plates with different thicknesses, the moving range of the adjusting structure is limited through the limiting structure, the adjusting structure is prevented from falling out of the positioning structure, and the practicability of the device is improved; comprising a positioning structure, an adjusting structure and a limiting structure, the adjusting structure is installed on the positioning structure, and the limiting structure is installed on the positioning structure.

Description

Technical Field

[0001] The utility model relates to the technical field of flange installation and correction, in particular to a mechanical flange centering corrector. Background Art

[0002] The petrochemical industry and other industries need pipelines to transport media. During the manufacture and installation of pipelines, due to various factors such as construction errors and pipeline stress, the concentricity of the pipeline flange may deviate. If the gasket is directly installed and tightened, there will be a risk of leakage. In the past, flange alignment and correction work was mostly done by crowbars or fall chains. The force size and direction of the pipeline during adjustment could not be accurately guaranteed, and the risk of personal injury during construction was high. Therefore, a mechanical flange alignment and correction device is designed to adjust the flange concentricity.

[0003] The Chinese utility model patent with application number CN201921122023.4 in the prior art involves a flange corrector, including a corrector body, an adjustment section, a fixing section, a connecting section, an adjustment part and a fixing part, which can effectively solve the problem of difficulty in aligning misaligned flanges in the prior art.

[0004] However, in actual use, the position of the adjusting part of the above-mentioned device is not adjustable, and it is difficult to adapt to flanges of different thicknesses. At the same time, the position of the fixing part is fixed relative to the position of the corrector body and is not adjustable. For flanges of different models, the distance between the bolt holes on the flange and the flange edge is different, and the above-mentioned device is insufficiently adaptable. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a mechanical flange centering corrector which can adjust itself through a positioning structure to adapt to the positions of bolt holes on flanges of different models, and performs centering correction on the positions of two sets of flanges to be connected through the adjustment structure and the positioning structure. At the same time, the adjustment structure can freely adjust its own position in the positioning structure to adapt to flanges of different thicknesses. The moving range of the adjustment structure is limited by a limiting structure to prevent the adjustment structure from falling out of the positioning structure, thereby improving the practicability of the device.

[0006] The utility model discloses a mechanical flange centering corrector, which comprises a positioning structure, an adjusting structure and a limiting structure, wherein the adjusting structure is mounted on the positioning structure, and the limiting structure is mounted on the positioning structure. The positioning structure itself can be adjusted to adapt to the positions of bolt holes on flanges of different types, and the positions of two groups of flanges to be connected are center-corrected by cooperating with the positioning structure through the adjusting structure. At the same time, the adjusting structure can freely adjust its position in the positioning structure to adapt to flanges of different thicknesses, and the moving range of the adjusting structure is limited by the limiting structure to prevent the adjusting structure from falling out of the positioning structure, thereby improving the practicability of the device.

[0007] Preferably, the positioning structure includes a support beam, a first threaded hole, a bent rod and an external thread. A first threaded hole is provided on the front end surface of the left part of the support beam, and an external thread is provided on the long round rod of the bent rod. The bent rod is connected to the first threaded hole on the support beam through the external thread. By connecting the external thread and the first threaded hole on the support beam, the distance between the bent part of the bent rod and the support beam can be adjusted to adapt to the position of the bolt holes on flanges of different models, thereby improving the adaptability and practicality of the device.

[0008] Preferably, the adjustment structure includes a cross slide, a slider, a second threaded hole and an adjusting bolt. A cross slide is provided on the right end face of the support beam. The slider can be inserted into the cross slide and move left and right in the cross slide. A second threaded hole is provided on the front end face of the slider. The adjusting bolt is connected to the slider through the second threaded hole. The bent part of the bent rod is inserted into the bolt hole of the flange. The position of the slider in the cross slide is adjusted to adapt to flanges of different thicknesses. The adjusting bolt is turned so that the front part of the adjusting bolt slowly pushes the other set of flanges forward, thereby achieving the effect of centering and correcting the two sets of flanges.

[0009] Preferably, the limiting structure includes a baffle, a fixing bolt and a third threaded hole. A group of third threaded holes are respectively arranged at the four corners of the right end face of the support beam. The baffle is connected to the right part of the support beam through four groups of fixing bolts. The right part of the cross slide groove is closed by the baffle plate, thereby limiting the position of the slider in the cross slide groove to prevent the slider from falling from the cross slide groove, thereby improving the practicability of the device.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the positioning structure itself can be adjusted to adapt to the positions of bolt holes on flanges of different models; the positions of two sets of flanges to be connected are aligned and corrected by the adjustment structure and the positioning structure; at the same time, the adjustment structure can freely adjust its position in the positioning structure to adapt to flanges of different thicknesses; the moving range of the adjustment structure is limited by the limiting structure to prevent the adjustment structure from falling out of the positioning structure, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the axonometric structure of a single set of correctors;

[0012] Figure 2 It is a schematic diagram of the axonometric structure of the double-group corrector operation;

[0013] Figure 3 It is a schematic diagram of the axonometric structure of the utility model;

[0014] Figure 4 It is a schematic diagram of the explosion structure of the utility model;

[0015] Figure 5It is a schematic diagram of the axonometric structure of the support beam;

[0016] Markings in the attached drawings: 1. support beam; 2. first threaded hole; 3. bent rod; 4. external thread; 5. cross slide; 6. slider; 7. second threaded hole; 8. adjusting bolt; 9. baffle; 10. fixing bolt; 11. third threaded hole. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0018] Example

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The adjusting structure shown is installed on the positioning structure, and the limiting structure is installed on the positioning structure;

[0020] First, put the slider 6 into the cross slot 5, then fix the baffle 9 on the right end face of the support beam 1 through multiple sets of fixing bolts 10, then adjust the position of the slider 6 in the cross slot 5 according to the model and position of the flange to be adjusted, adjust the distance between the bent part of the bent rod 3 and the support beam 1 by rotating the bent rod 3, then insert the bent part of the bent rod 3 into the bolt hole of the flange, turn the adjusting bolt 8 so that the front of the adjusting bolt 8 slowly pushes the other set of flanges forward for centering correction, and at the same time, multiple sets of correctors can be used to adjust and correct different positions of the flange at the same time;

[0021] The positioning structure includes a support beam 1, a first threaded hole 2, a bent rod 3 and an external thread 4. The first threaded hole 2 is provided on the front end surface of the left portion of the support beam 1, and the external thread 4 is provided on the long round rod of the bent rod 3. The bent rod 3 is connected to the first threaded hole 2 on the support beam 1 through the external thread 4.

[0022] The adjustment structure includes a cross slot 5, a slider 6, a second threaded hole 7 and an adjustment bolt 8. The right end surface of the support beam 1 is provided with a cross slot 5. The slider 6 can be inserted into the cross slot 5 and move left and right in the cross slot 5. The front end surface of the slider 6 is provided with a second threaded hole 7. The adjustment bolt 8 is connected to the slider 6 through the second threaded hole 7.

[0023] The limiting structure includes a baffle plate 9, a fixing bolt 10 and a third threaded hole 11. A group of third threaded holes 11 are respectively arranged at four corners on the right end surface of the support beam 1. The baffle plate 9 is connected to the right part of the support beam 1 through four groups of fixing bolts 10.

[0024] The positioning structure itself can be adjusted to adapt to the positions of bolt holes on flanges of different models. The positions of two sets of flanges to be connected are aligned and corrected by cooperating with the positioning structure. At the same time, the adjusting structure can freely adjust its position in the positioning structure to adapt to flanges of different thicknesses. The moving range of the adjusting structure is limited by the limiting structure to prevent the adjusting structure from falling out of the positioning structure, thereby improving the practicability of the device.

[0025] 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 principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A mechanical flange centering corrector; characterized in that: The invention comprises a positioning structure, an adjusting structure and a limiting structure, wherein the adjusting structure is mounted on the positioning structure, and the limiting structure is mounted on the positioning structure; the positioning structure comprises a support beam (1), a first threaded hole (2), a bent rod (3) and an external thread (4); a first threaded hole (2) is arranged on the front end surface of the left part of the support beam (1), an external thread (4) is arranged on the long round rod of the bent rod (3), and the bent rod (3) is connected to the first threaded hole (2) on the support beam (1) via the external thread (4); the adjusting structure comprises a cross slide groove (5), a slider (6), a second threaded hole (7) and an adjusting bolt (8), A cross slide groove (5) is arranged on the right end surface of the support beam (1), a slider (6) can be inserted into the cross slide groove (5) and move left and right in the cross slide groove (5), a second threaded hole (7) is arranged on the front end surface of the slider (6), and an adjusting bolt (8) is connected to the slider (6) through the second threaded hole (7); the limiting structure comprises a baffle (9), a fixing bolt (10) and a third threaded hole (11), a group of third threaded holes (11) are respectively arranged at four corners on the right end surface of the support beam (1), and the baffle (9) is connected to the right part of the support beam (1) through four groups of fixing bolts (10).

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