Drilling clamp device for RTO

Abstract

The RTO drilling clamp device is used for clamping a box body, two rib plates with through holes in the middles are fixedly connected to the interior of the box body, the clamp device is arranged in a bilateral symmetry mode and comprises a first connecting cylinder, large pressing plates are connected to the two ends of the first connecting cylinder in a flange mode, and the large pressing plates are connected to the two ends of the first connecting cylinder in a flange mode. The other side of the large pressing plate is connected with a second connecting cylinder in a flange mode, the other end of the second connecting cylinder is connected with a third connecting cylinder in a flange mode, the third connecting cylinder is sleeved with a small pressing plate, the other side of the small pressing plate abuts against a preset pipe fitting of the box body, and threads are arranged on the circumferential face of the third connecting cylinder. Two fixing rings are arranged in a matched mode, a steel channel ring is fixedly connected to the rib plate in a spot welding mode, the steel channel ring and the through hole in the rib plate are concentric, and the rib plate is located between the steel channel ring and the large pressing plate. According to the drilling device, the rib plate is clamped and fixed, so that the structural strength of a drilling position is improved, and the form and position precision of a drilled hole is ensured.

Description

Technical Field

[0001] This invention relates to the field of fixture technology, and more particularly to a drilling fixture device for RTO. Background Technology

[0002] Given that the high-temperature exhaust gas processed by RTO systems may contain corrosive substances, the gas sealing device must possess excellent corrosion resistance and be able to achieve a complete seal. Therefore, the two-way valve gas sealing device must be able to withstand the severe conditions of high-temperature environments, ensuring that the valve can achieve a complete seal when closed, preventing gas leakage.

[0003] During processing, drilling directly into the housing may result in misalignment or tilting of the drilled holes. This would prevent the two-way valve mirror panel driven by the cylinder from achieving a complete seal, leading to gas leakage. Failure to address this issue promptly could result in product waste and equipment damage. Therefore, an innovative solution is urgently needed to overcome these technical challenges. Summary of the Invention

[0004] To address the aforementioned problems, this invention discloses a drilling fixture device for RTO (Regenerative Thermal Oxidizer) for clamping a housing. The housing has two ribs with through holes in the center fixedly connected internally. The fixture device is symmetrically arranged and includes a first connecting cylinder. Both ends of the first connecting cylinder are flanged to large pressure plates. A second connecting cylinder is flanged to the other side of the large pressure plates, and a third connecting cylinder is flanged to the other end of the second connecting cylinder. A small pressure plate is fitted onto the third connecting cylinder, with its other side abutting against a pre-installed pipe fitting in the housing. This fixture device is used to fix the housing and drills holes in the ribs at angles around the central through hole. However, the drilling location is at the edge of the through hole, where the rib's structural strength is low, making it prone to positional deviation during drilling. The fixture device ensures accurate drilling position. Since drilling also occurs inside the housing, the various components of the fixture device are assembled inside the housing.

[0005] The third connecting cylinder has threads on its circumferential surface and is fitted with two retaining rings. The small pressure plate is clamped between the two retaining rings. Rotating the two retaining rings on both sides adjusts the left-right relative position of the clamping device and the box, thereby achieving the step-by-step drilling and fixing of the rib plate.

[0006] A channel steel ring is spot-welded to the stiffening plate, and the channel steel ring and the through hole on the stiffening plate are concentric. The stiffening plate is located between the channel steel ring and the large pressure plate. The channel steel ring has a channel steel cross-section. Welding the channel steel ring to the stiffening plate improves the structural strength at the through hole of the stiffening plate. At the same time, the spot welding method also makes it convenient to remove the channel steel ring after drilling.

[0007] The large and small pressure plates have the same structure, both including tubular components. A circular plate is fixedly connected to one end of each tubular component, and several right-angled triangular plates are fixedly connected to the sidewalls of the tubular components at equal angles. The other right-angled side of each plate is fixedly connected to the circular plate. The plates enhance the structural strength of both the large and small pressure plates. Additionally, the plates on the large pressure plate serve a positioning function; one end of a plate on the large pressure plate passes through a through hole in the stiffener, and its hypotenuse mates with it.

[0008] Preferably, the interior of the housing is provided with several support columns, the upper ends of which support the first connecting cylinder and / or the second connecting cylinder. The support columns provide support for the clamping device.

[0009] Preferably, one end of the third connecting cylinder is sealed, and the seal is close to the second connecting cylinder. That is, a flange blind plate is welded to one end of the third connecting cylinder, or a flange blind plate can be welded to the end of the second connecting cylinder.

[0010] The beneficial effects of this invention are as follows:

[0011] 1. A large pressure plate and channel steel ring are provided to clamp and fix the stiffening plate, which improves the structural strength of the drilling area and the dimensional accuracy of the drilling. At the same time, during the clamping of the box, the box can be moved axially relative to the clamping device by rotating the fixing ring to complete the drilling of the two stiffening plates.

[0012] 2. All components are connected via flanges, facilitating assembly, disassembly, maintenance, and replacement within the housing, greatly simplifying the production process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram illustrating the application of the present invention;

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a schematic diagram of a two-way valve.

[0016] List of reference numerals in the attached diagram:

[0017] 1. Box body; 2. Support column; 3. Rib plate; 4. First connecting cylinder; 5. Large pressure plate; 6. Channel steel ring; 7. Second connecting cylinder; 8. Third connecting cylinder; 9. Fixing ring; 10. Small pressure plate; 11. Linear motion pair; 12. Mirror panel; 13. Sub-mouth. Detailed Implementation

[0018] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0019] like Figures 1 to 2 As shown, a drilling fixture device for RTO is used to clamp the housing 1, which is the valve body of the RTO two-way valve. Inside the housing 1, there are two stiffening plates 3 with through holes in the middle. The stiffening plates 3 are support members. Holes are drilled in the stiffening plates 3 for installing the sub-port 13. The sub-port 13 is an annular part with a smooth inner wall, while the valve core is the mirror panel 12. If the drilling position of the stiffening plate 3 is deviated, the mirror panel 12 and the sub-port 13 cannot achieve a complete seal.

[0020] The clamping device is symmetrically arranged from left to right, including a first connecting cylinder 4. Both ends of the first connecting cylinder 4 are flanged and connected to large pressure plates 5. Specifically, flanges are provided at the ends of both the first connecting cylinder 4 and the large pressure plates 5, and these flanges are fixed with bolts and nuts. The same applies below. A second connecting cylinder 7 is flanged and connected to the other side of the large pressure plate 5. A third connecting cylinder 8 is flanged and connected to the other end of the second connecting cylinder 7. A small pressure plate 10 is fitted onto the third connecting cylinder 8, and the other side of the small pressure plate 10 abuts against a pre-set pipe fitting in the housing 1. By controlling the position of the lower pressure plate 10 on the third connecting cylinder 8, the ends of the small pressure plates 8 on both sides abut against the housing 1, thus fixing the clamping device relative to the housing 1.

[0021] The third connecting cylinder 8 has threads on its circumferential surface and is fitted with two retaining rings 9. The small pressure plate 10 is clamped between the two retaining rings 9. That is, the two retaining rings 9 are used to adjust the position of the small pressure plate 10, so as to realize the left and right overall movement of the middle part of the clamping device.

[0022] A channel steel ring 6 is spot-welded to the stiffening plate 3, and the channel steel ring 6 and the through hole on the stiffening plate 3 are concentric. The stiffening plate 3 is located between the channel steel ring 6 and the large pressure plate 5. The channel steel ring 6 improves the structural strength of the stiffening plate 3. At the same time, the spot welding method also makes it convenient to remove the channel steel ring 6 after drilling. When drilling, the large pressure plate 5 holds the stiffening plate 3 to prevent deformation or positional deviation of the stiffening plate 3 during drilling, which would cause problems with low drilling accuracy.

[0023] Furthermore, through holes are provided on the edge of the large pressure plate 5, and corresponding through holes are provided on the channel steel ring 6. Bolts and other connecting parts are used to pass through the through holes to connect and fix the large pressure plate 5 and the channel steel ring 6, thereby achieving stable clamping of the stiffening plate 3.

[0024] The large pressure plate 5 and the small pressure plate 10 have the same structure, both including pipe fittings. One end of the pipe fitting is fixedly connected to a circular plate, and several right-angled triangular plates are fixedly connected to the side wall of the pipe fitting at equal angles. The right-angled side of the plate is fixedly connected to the circular plate. The right-angled triangular plates improve the structural strength of the large plate fitting 5 and the small plate fitting 10.

[0025] The housing 1 has several support columns 2 inside, and the upper end of the support columns 2 supports the first connecting cylinder 4 and / or the second connecting cylinder 7. That is, the support columns 2 are in contact with the first connecting cylinder 4 and the second connecting cylinder 7.

[0026] One end of the third connecting cylinder 8 is sealed, and the seal is close to the second connecting cylinder 7.

[0027] After the clamping device is assembled on the housing 1, it is hoisted onto the drilling platform and the two ends of the clamping device are fixed. At this time, rotating the fixing ring 9 moves the small pressure plate 10 axially, and the small pressure plate also pushes the housing 1 to move axially, so that one of the large pressure plates 5 and the stiffening plate 3 come into contact and clamp, and a hole can be drilled in the current stiffening plate 3. After drilling is completed, the fixing ring 9 is adjusted so that the other pressure plate 5 and the other stiffening plate 3 come into contact and clamp, and a hole can be drilled in the current stiffening plate 3.

[0028] like Figure 3 As shown, after drilling, the corresponding components are installed on the housing 1. The sub-port 13 is installed on the stiffening plate 3 by means of drilling. Linear motion pairs 11 are fixedly connected to both sides of the housing 1. The linear motion pairs 11 are cylinders. The output end of the cylinder is fixedly connected to the mirror panel 12. Since the mirror panel 12 is relatively thin, if the position of the sub-port 13 is deviated, the mirror panel 12 will easily not fit tightly. However, by drilling in the above scheme, the accuracy of the hole position is ensured in advance, so as to achieve a completely sealed fit between the mirror panel 12 and the sub-port 12.

[0029] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A drilling fixture device for RTO, used for clamping a housing (1), wherein two reinforcing plates (3) with through holes in the middle are fixedly connected inside the housing (1), characterized in that, The clamping device is arranged symmetrically on the left and right, including a first connecting cylinder (4), both ends of the first connecting cylinder (4) are connected to a large pressure plate (5) in the form of flanges, the other side of the large pressure plate (5) is connected to a second connecting cylinder (7) in the form of flanges, the other end of the second connecting cylinder (7) is connected to a third connecting cylinder (8) in the form of flanges, a small pressure plate (10) is sleeved on the third connecting cylinder (8), and the other side of the small pressure plate (10) abuts against the pipe fittings preset in the box body (1); The third connecting cylinder (8) has a threaded surface and is fitted with two fixing rings (9). The small pressure plate (10) is clamped between the two fixing rings (9). A channel steel ring (6) is spot-welded and fixedly connected to the stiffening plate (3), and the through holes on the channel steel ring (6) and the stiffening plate (3) are concentric. The stiffening plate (3) is located between the channel steel ring (6) and the large pressure plate (5).

2. The drilling fixture device for RTO according to claim 1, characterized in that: The large pressure plate (5) and the small pressure plate (10) have the same structure, both including pipe fittings. One end of the pipe fitting is fixedly connected to a circular plate, and several right-angled triangular plates are fixedly connected to the side wall of the pipe fitting at equal angles. The other end of the plate fitting is fixedly connected to the circular plate.

3. The drilling fixture device for RTO according to claim 1, characterized in that: The box (1) is provided with several support columns (2) inside, and the upper end of the support column (2) supports the first connecting cylinder (4) and / or the second connecting cylinder (7).

4. The drilling fixture device for RTO according to claim 1, characterized in that: One end of the third connecting tube (8) is sealed, and the seal is close to the second connecting tube (7).

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