A large-angle shell elbow processing equipment

By combining the pipe bending machine with the supporting and bending structures, and utilizing the expansion and contraction liner to protect the shell, the problems of low processing efficiency and difficulty in ensuring welding quality in traditional large-angle shell elbows are solved, thus achieving efficient and reliable shell elbow processing.

CN224423915UActive Publication Date: 2026-06-30SAIJIE AIDI (JIANGSU) HIGH VOLTAGE ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SAIJIE AIDI (JIANGSU) HIGH VOLTAGE ELECTRIC CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional 175°-180° large-angle shell elbows have low processing efficiency and the welding quality is difficult to guarantee.

Method used

The shell bend is formed by using a pipe bending machine in conjunction with a support structure and a bending structure, and an expansion and contraction liner is used to protect the shell wall from deformation.

Benefits of technology

It achieves efficient processing of large-angle shell elbows ranging from 175° to 180°, ensuring welding quality, and features a simple structure and convenient operation.

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Abstract

This utility model relates to a large-angle shell elbow processing equipment, which includes a pipe bending machine; a straight shell section is placed on the pipe bending machine, which bends the straight shell section to form a shell elbow with a bending angle of 175°-180°. The design is reasonable and the structure is simple. It achieves a large-angle shell elbow of 175°-180° through bending, which is highly efficient. (During bending, the shell elbow experiences minimal stretching due to the large angle of 175°-180°, which has little impact on its quality.)
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Description

Technical Field

[0001] This utility model relates to busbar processing, specifically to a large-angle shell elbow processing equipment. Background Technology

[0002] Traditional shell elbows (including large-angle shell elbows of 175°-180°) are made by welding two straight shell sections together, which results in low processing efficiency and difficulty in ensuring welding quality. Utility Model Content

[0003] In view of the above problems, this utility model proposes a large-angle shell elbow processing equipment.

[0004] The technical solution of this utility model:

[0005] A large-angle shell elbow processing equipment, the processing equipment includes a pipe bending machine; a straight shell is placed on the pipe bending machine, the pipe bending machine bends the straight shell to form a shell elbow, the bending angle is 175°-180°.

[0006] Further refining the above technical solution, the pipe bending machine has a support structure and two bending structures. The support structure is centrally located on opposite sides of the two bending structures. The straight shell placed on the pipe bending machine is sandwiched between the support structure and the two bending structures. During bending, the two bending structures apply force to the straight shell.

[0007] To further refine the above technical solution, the processing equipment also includes at least three inner linings; each inner lining is disposed inside the straight shell bend, opposite to the supporting structure and the bending structure; to prevent the straight shell wall from being squeezed and deformed during the bending process.

[0008] Further refining the above technical solution, the inner lining is of the expansion and contraction type; this facilitates the removal of the inner lining after bending is completed.

[0009] The advantages of this invention are its reasonable design, simple structure, and efficient use of bending to achieve a large-angle shell bend of 175°-180°. (During bending, the shell bend experiences minimal stretching, having little impact on its quality.) Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the equipment for processing large-angle shell bends (before bending).

[0011] Figure 2 This is a schematic diagram of the structure of a large-angle shell bend processing equipment (after bending).

[0012] The diagram shows a pipe bending machine 1-1, a support structure 1-1-1, a bending structure 1-1-2, an inner liner 1-2, a straight shell 2, and a shell elbow 3. Detailed Implementation

[0013] like Figure 1-2 As shown, a large-angle shell elbow processing equipment includes a pipe bending machine 1-1 and three inner liners 1-2. The pipe bending machine 1-1 has a support structure 1-1-1 and two bending structures 1-1-2. The support structure 1-1-1 is centrally located on the opposite side of the two bending structures 1-1-2. The inner liners 1-2 are expansion and contraction type.

[0014] In use, a section of straight shell 2 is placed on the pipe bending machine 1-1, sandwiched between the support structure 1-1-1 and the two bending structures 1-1-2. The three inner linings 1-2 are placed inside the straight shell 2, so that they are opposite to the support structure 1-1-1 and the bending structures 1-1-2. The pipe bending machine 1-1 is started, and the two bending structures 1-1-2 apply force to the straight shell 2, causing the straight shell 2 to bend 175°-180° to form the shell elbow 3.

[0015] The above embodiments are only for illustrating the technical concept and features of the invention, and are intended to enable those skilled in the art to understand the content of the invention and implement it accordingly. They should not be construed as limiting the scope of protection of the invention. All equivalent changes or modifications made in accordance with the spirit and essence of the invention should be covered within the scope of protection of the invention.

Claims

1. A large-angle shell elbow processing equipment, characterized in that, The processing equipment includes a pipe bending machine; A straight shell is placed on a pipe bending machine, which bends the straight shell to form a shell elbow with a bending angle of 175°-180°.

2. The large-angle shell elbow processing equipment according to claim 1, characterized in that, The pipe bending machine has a support structure and two bending structures, with the support structure in the center and located on opposite sides of the two bending structures. The straight shell placed on the pipe bending machine is sandwiched between the supporting structure and the two bending structures. During bending, the two bending structures apply force to the straight shell.

3. The large-angle shell elbow processing equipment according to claim 2, characterized in that, The processing equipment also includes three inner linings; Each inner liner is installed inside the straight shell elbow, opposite to the support structure and bending structure of the pipe bending machine.

4. The large-angle shell elbow processing equipment according to claim 3, characterized in that, The lining is expandable and contractable.