Multi-elbow support device

Abstract

The utility model discloses a multi-elbow support device which comprises a plurality of T-shaped supports and a plurality of elbows, wherein the T-shaped supports and the elbows are arranged in a central symmetry mode. Each T-shaped support comprises a bottom plate and a vertical plate which are fixedly connected, each bottom plate is provided with a plurality of connecting holes, the upper portion of each vertical plate is provided with a lower arc-shaped groove, the vertical plates on the two sides of each lower arc-shaped groove are fixedly connected with lower connecting plates, the lower portion of each elbow is arranged in the lower arc-shaped groove of the corresponding vertical plate, each elbow is provided with a limiting pressing plate, and each limiting pressing plate is fixedly connected with the corresponding connecting plate. The upper portion of each elbow is arranged in an upper arc-shaped groove in the lower portion of the corresponding limiting pressing plate, the radial width of each upper arc-shaped groove is smaller than the outer diameter of each elbow, and one side of each limiting pressing plate is connected with one lower connecting plate through an upper connecting plate and a bolt. The adjacent ends of every two adjacent elbows are fixedly connected through a plurality of tie bar plates in a welded mode. According to the utility model, a plurality of elbows can be assembled into a circular ring, the stability and the safety of the circular ring can be ensured, the subsequent removal of original welding seams and the mechanical processing and the automatic welding of grooves can be realized, the product quality and the automatic and intelligent participation degree are improved, the labor intensity of workers is obviously reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a support device for multiple elbows. Background Art

[0002] Various elbows currently used in the boiler or pressure vessel industry, such as 90° elbows in "L" type pressure vessels, 180° elbows in "U" type pressure vessels, 120° elbows in pressure pipes, and large diameter elbows with angles less than 90°, such as Figure 2 As shown, generally, steel plates are used to press the upper and lower semicircular arc plates and then weld them to form an elbow 1; if the performance of the original weld 13 does not meet the requirements after sampling and analysis after welding, the unqualified original weld 13 of the elbow needs to be replaced according to regulations; in this process, the original weld needs to be removed and subsequently re-welded. Figure 1 As shown, several reinforcing plates 14 and 15 are welded at the inner and outer seams of the elbow 1 to fix the two semicircular arc elbows, and then a carbon arc air gouging is used to remove the seam of the outer wall of the elbow, and a grinding wheel is used to grind the groove of the seam to the welding requirement. Finally, manual welding is used to complete the seam welding, and the back side is cleaned and welded properly, and then the reinforcing plates 14 and 15 are removed. This structure can only remove the original weld of a single elbow and re-weld it. If a large number of elbows need to be replaced, not only the workload is large, the labor intensity is high, the production is inconvenient, and the efficiency is low, but also it is a manual operation and the processing quality is difficult to guarantee. Summary of the Invention

[0003] The purpose of the present utility model is to address the above-mentioned deficiencies in the prior art and to provide a multi-elbow support device, which can assemble several elbows into a circular ring while ensuring its stability and safety, and can realize the subsequent removal of the original weld and mechanized processing and automated welding of the groove, which not only improves product quality and the degree of automation and intelligent participation, but also significantly reduces manual labor intensity and improves production efficiency.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a multi-elbow support device, comprising several T-shaped supports and several elbows symmetrically arranged with a center; the characteristic is that: each T-shaped support comprises a fixedly connected bottom plate and a vertical plate, the bottom plate is provided with several connecting holes, the upper part of the vertical plate is provided with a lower arc-shaped groove, and the vertical plates on both sides of the lower arc-shaped groove are fixedly connected with a lower connecting plate, the lower part of each elbow is placed in the lower arc-shaped groove of its respective vertical plate, each elbow is provided with a limiting pressure plate, and the upper part of each elbow is placed in the upper arc-shaped groove of the lower part of its respective limiting pressure plate, the radial width of the upper arc-shaped groove is smaller than the outer diameter of the elbow, and one side of the limiting pressure plate is connected to the lower connecting plate on one side of the lower arc-shaped groove of the vertical plate through the upper connecting plate by bolts; several elbows are arranged in a circular ring, and the adjacent ends of two adjacent elbows are fixedly connected by welding through several tie bars.

[0005] The utility model connects multiple elbows of the same specification end to end on several T-shaped supports to form a 360° circular cylinder body, which is connected and fixed by several tie plates and fixed to the vertical plate by a limit pressure plate, thereby ensuring its stability and safety, avoiding the risk of displacement or falling off of the circular cylinder at the elbow connection part during lifting, transportation, machining and automated welding, facilitating the removal of original welds and mechanized processing and automated welding of grooves, not only improving product quality and automation and intelligent participation, but also significantly reducing manual labor intensity and improving production efficiency;

[0006] As a further improvement of the present invention, the elbow is connected by welding the upper semicircular plate and the lower semicircular plate, and the adjacent ends of the two adjacent elbows are fixedly connected by several tie bars welded on the upper semicircular plate and the lower semicircular plate respectively; this can ensure the stability of the welded elbow connection;

[0007] As a further improvement of the present invention, a plurality of annularly arranged equal-height pads are provided under the elbow between two adjacent T-shaped supports. The equal-height pads are provided with arc-shaped grooves that match the lower part of the elbow, and their bottom plates are provided with a plurality of connection holes; this can further improve the supporting effect; the equal-height pads can provide support for the annular cylinder to ensure the misalignment when adjacent elbows are butted together, and after the automatic welding of the elbow seams is completed, auxiliary safety support is provided when the elbow is divided into parts;

[0008] In summary, the utility model can assemble several elbows into a ring and ensure its stability and safety. It can realize the subsequent removal of the original weld and mechanized processing and automated welding of the groove, which not only improves product quality and automation and intelligent participation, but also significantly reduces manual labor intensity and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is the front view of the existing elbow weld support device.

[0010] Figure 2 for Figure 1 AA cross-sectional view.

[0011] Figure 3 It is a top view of an embodiment of the present utility model.

[0012] Figure 4 for Figure 3 CC cross-sectional view.

[0013] Figure 5 for Figure 3 DD cross-sectional view.

[0014] Figure 6 for Figure 5 Left side view of the medium height block.

[0015] Figure 7 for Figure 3 EE cross-section diagram. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings, taking a 90° elbow as an example.

[0017] like Figures 3 to 6 As shown, a multi-elbow support device of this embodiment includes four T-shaped supports 21 and four 90° elbows 1 arranged symmetrically with the center, and the elbows 1 are welded together by an upper semicircular plate and a lower semicircular plate; each T-shaped support 21 includes a fixed bottom plate 22 and a vertical plate 23, the bottom plate 22 is provided with several connecting holes 24, the upper part of the vertical plate 23 is provided with a lower arc groove, and lower connecting plates 25 are fixedly connected to the vertical plates 23 on both sides of the lower arc groove. The lower part of each elbow 1 is placed in the lower arc groove of each vertical plate 23, and each elbow 1 is provided with a limiting pressure plate 26. The upper part of each elbow 1 is placed under the lower limiting pressure plate 26. In the upper arc groove, the radial width of the upper arc groove is smaller than the outer diameter of the elbow 1, and one side of the limiting pressure plate 26 is connected to the lower connecting plate 25 on one side of the lower arc groove of the vertical plate 23 through a fixed upper connecting plate 27 by several bolts 28; the four elbows 1 are arranged in a circular ring, and the adjacent ends of the two adjacent elbows 1 are fixedly connected by several tie plates 32 welded on their upper semicircular plates and lower semicircular plates respectively; two annularly arranged equal-height pads 29 are also provided under the elbow 1 between the two adjacent T-shaped supports 21. The equal-height pads 29 are all provided with arc grooves that cooperate with the lower part of the elbow, and their bottom plates 30 are all provided with several connecting holes 31.

[0018] The utility model connects multiple elbows 1 of the same specification end to end on several T-shaped supports 21 to form a 360° annular cylinder body, and is connected and fixed by several tie plates 32, and then fixed by several bolts 28 and nuts through the limiting pressure plate 26 and the vertical plate 23, so as to ensure its stability and safety, and avoid the risk of displacement or falling off of the annular cylinder at the elbow joint during lifting, transportation, machining and automated welding. The radial width of the upper arc groove at the lower part of the limiting pressure plate 26 is smaller than the outer diameter of the elbow 1, and the limiting pressure plate 26 is fixed to the vertical plate 23. The upper connecting plate 27 on one side can be alternately connected to the lower connecting plates 25 on both sides of the arc-shaped groove under the vertical plate 23, and the inner and outer seams of the annular cylinder can be alternately exposed. The support device is installed on the chuck of the vertical lathe and the workbench of the positioner by passing through the several connecting holes 24 of the bottom plate 22 and the several connecting holes 31 of the bottom plate 30 of the equal height pad 29. The original weld removal and mechanized processing and automated welding of the groove can be realized, which not only improves product quality and the degree of automation and intelligent participation, but also significantly reduces manual labor intensity and improves production efficiency.

[0019] The equal height pads 29 can provide support for the annular cylinder to ensure the misalignment when adjacent elbows are butted together, and provide auxiliary safety support when the elbows are divided into parts after the elbow seams are automatically welded.

[0020] The support device of the utility model can also be used to assemble multiple elbows of the same specification such as 180° elbows, 120° elbows, 45° elbows, or elbows less than 45° into a ring, by simply setting different numbers of T-shaped supports and limit pressure plates;

[0021] The above embodiments have been used for illustration, but it should be understood that the above embodiments are only used for the purpose of example and description, and are not intended to limit the present invention to the scope of the described embodiments.

Claims

1. A multi-elbow support device, comprising a plurality of T-shaped supports and a plurality of elbows arranged symmetrically about a center; characterized in that: Each T-shaped support includes a fixed base plate and a vertical plate, the base plate is provided with several connecting holes, the upper part of the vertical plate is provided with a lower arc-shaped groove, the vertical plates on both sides of the lower arc-shaped groove are fixedly connected with lower connecting plates, the lower part of each elbow is placed in the lower arc-shaped groove of each vertical plate, each elbow is provided with a limiting pressure plate, the upper part of each elbow is placed in the upper arc-shaped groove of the lower part of each limiting pressure plate, the radial width of the upper arc-shaped groove is smaller than the outer diameter of the elbow, one side of the limiting pressure plate is connected to the lower connecting plate on one side of the lower arc-shaped groove of the vertical plate by bolts through the upper connecting plate; several elbows are arranged in a circular ring, and the adjacent ends of two adjacent elbows are fixedly connected by welding through several tie bars.

2. A multi-elbow support device according to claim 1, characterized in that: The elbows are connected by welding an upper semicircular plate and a lower semicircular plate, and the adjacent ends of two adjacent elbows are fixedly connected by several tie bars welded on the upper semicircular plate and the lower semicircular plate respectively.

3. A multi-elbow support device according to claim 1 or 2, characterized in that: There are also several circularly arranged equal-height pads under the elbow between two adjacent T-shaped supports. The equal-height pads are all provided with arc-shaped grooves that match the lower part of the elbow, and their bottom plates are all provided with several connecting holes.

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