Straightening press protection seat

Abstract

The utility model relates to a straightening machine protection seat with transverse arc grooves, the arc groove surface is provided with arc mounting groove, detachable arc lining plate is arranged in the arc mounting groove, the arc surface of arc lining plate protrudes from the groove surface of arc groove, and the pipe support is on the arc surface of arc lining plate. The arc length of arc lining plate is less than the arc length of arc groove, and the central angle is not more than 120 DEG. The groove width of arc mounting groove is 1 / 3~1 / 2 of the groove length of arc groove. The straightening machine protection seat structure of the application can be transformed by using the original worn straightening machine protection seat, saving the cost. The worn part is removed by turning the original worn arc groove, then the arc mounting groove is arranged on the arc groove surface, the arc lining plate is embedded, the arc lining plate is used for directly supporting the pipe, the contact loss of pipe mainly occurs on the arc lining plate, and the arc lining plate only needs to be maintained and updated daily.

Description

Technical Field

[0001] This utility model relates to the structure of the inlet and outlet protective seat of a straightening machine. Background Technology

[0002] Heat treatment of steel pipes is a key process that improves the performance of steel pipes through heating, holding, and cooling. It mainly involves products such as oil casing pipes, high-pressure boiler tubes, structural pipes, and fluid pipes. Heat treatment inevitably causes some deformation of the pipes, affecting their straightness. Therefore, one or more straightening machines are needed to straighten the heat-treated steel pipes. When using a straightening machine to straighten steel pipes, the pipes are supported on inlet and outlet protective seats. During straightening, the pipes rotate under pressure, rubbing against the inner surface of the protective seats, producing spiral scratches on the pipe surface. The scratches can be as deep as 1mm or more, requiring manual grinding, which increases the workload of manual grinding. Furthermore, the residual scratches also affect the surface quality of the steel pipes.

[0003] The original design of the inlet and outlet protection seats of the straightening machine was based on integral casting, which had the following problems:

[0004] 1. The inlet and outlet protection seats of the straightening machine are made of integral casting. After being worn to a certain extent by the steel pipe, they need to be replaced as a whole, which is very costly.

[0005] 2. The inlet and outlet protective seats of the straightening machine are made of cast steel, which is hard and can scratch the steel pipe, increasing the grinding work on the steel pipe, affecting production efficiency and surface quality. If the scratch is too deep, it may even lead to product scrap. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a straightening machine protection seat in light of the above-mentioned prior art. This straightening machine protection seat is a structural modification based on the worn straightening machine inlet and outlet protection seat (straightening machine protection seat), so that the straightening machine protection seat can be put back into use and save costs.

[0007] The technical solution adopted by this utility model to solve the above problems is as follows: a straightening machine protective seat with a transverse arc-shaped groove, characterized in that: an arc-shaped mounting groove is provided on the surface of the arc-shaped groove, a detachable arc-shaped liner is provided in the arc-shaped mounting groove, the arc-shaped surface of the arc-shaped liner protrudes from the groove surface of the arc-shaped groove, and the pipe is supported on the arc-shaped surface of the arc-shaped liner.

[0008] Preferably, the arc length of the arc-shaped liner is less than the arc length of the arc-shaped groove, and the central angle of the arc-shaped liner is no greater than 120°, thus saving materials.

[0009] Preferably, the width of the arc-shaped mounting groove matches the width of the arc-shaped liner, the arc-shaped liner is embedded in the arc-shaped mounting groove and can slide along the arc-shaped mounting groove, a positioning block is provided in the arc-shaped mounting groove, and the positioning block acts on the end of the arc-shaped liner to position the arc-shaped liner.

[0010] Preferably, the width of the arc-shaped mounting groove is 1 / 3 to 1 / 2 of the length of the arc-shaped groove, thus saving materials.

[0011] Compared with existing technologies, the advantages of this utility model are as follows: The straightener protection seat structure of this application can utilize and modify existing worn straightener protection seats, saving costs. The arc-shaped groove of the straightener protection seat is machined to remove the worn portion. Then, an arc-shaped mounting groove is set on the surface of the arc-shaped groove, and an arc-shaped liner is embedded. The arc-shaped liner directly supports the pipe fittings, and the contact wear with the pipe fittings mainly occurs in the arc-shaped liner (preferably made of ductile iron). The arc-shaped liner uses a central angle of 120° or more, and the width of the arc-shaped liner is designed to be 1 / 3 to 1 / 2 of the original arc-shaped groove length, which can save on the cost of spare arc-shaped liner parts. In summary, the new straightener protection seat structure can realize the reuse of partially worn straightener protection seats, and the subsequent maintenance cost is low, saving equipment costs for enterprises. Attached Figure Description

[0012] Figure 1 A three-dimensional structural diagram of the protective base of a traditional straightening machine;

[0013] Figure 2 This is a three-dimensional structural view of the straightening machine protective seat in an embodiment of this utility model;

[0014] Figure 3 This is an end view of the straightening machine protective seat in an embodiment of this utility model;

[0015] In the diagram, 1 is an arc-shaped groove, 2 is an arc-shaped mounting groove, 3 is an arc-shaped liner, and 4 is a positioning block. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings. The embodiments described are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. The textual descriptions in this embodiment correspond to the accompanying drawings, and the descriptions involving orientation are also based on the descriptions in the accompanying drawings, and should not be construed as limiting the scope of protection of the present invention.

[0017] To ensure no scratches occur during the steel pipe straightening process, and to reduce the cost of the protective seats at the inlet and outlet of the straightening machine, the researchers proposed the following idea:

[0018] 1. Reuse and modify the existing worn inlet and outlet protective seats of the straightening machine to save costs;

[0019] 2. The arc-shaped liner of the inlet and outlet protective seat of the straightening machine is made of wear-resistant ductile iron;

[0020] 3. The liner needs to be designed for quick replacement, minimal material selection, and lightweight operation;

[0021] Based on the above concept, the structural design concept of the new straightening machine (entrance / exit) protective seat in this embodiment is as follows:

[0022] 1. Reuse and renovate existing equipment, adopting a layered approach. The first layer involves machining an arc-shaped groove to a depth of A centimeters; then, an arc-shaped mounting groove with a depth of B centimeters is machined onto the surface of the arc-shaped groove.

[0023] 2. Embed an arc-shaped liner plate (material: ductile iron) with a thickness of A+B cm into the arc-shaped mounting groove, so that the arc-shaped surface of the liner plate protrudes from the surface of the arc-shaped groove.

[0024] 3. The arc-shaped liner uses a 120° central angle. The width of the arc-shaped liner is designed to be 1 / 3 to 1 / 2 of the original arc-shaped groove length, which can save on the cost of spare wear-resistant arc-shaped liner parts.

[0025] After the aforementioned design modification using an embedded, replaceable, wear-resistant arc-shaped liner plate, the results met the usage requirements, and subsequent implementation will be fully rolled out. The improved straightening machine protective seat is as follows: Figure 2-3 As shown, the device has a transverse arc-shaped groove 1, and an arc-shaped mounting groove 2 is provided on the surface of the arc-shaped groove 1. A removable arc-shaped liner 3 is provided inside the arc-shaped mounting groove 2. The arc-shaped surface of the arc-shaped liner 3 protrudes from the groove surface of the arc-shaped groove 1, and the pipe fitting is supported on the arc-shaped surface of the arc-shaped liner 3. The arc length of the arc-shaped liner 3 is less than the arc length of the arc-shaped groove, and the arc angle is 120°.

[0026] The width of the arc-shaped mounting groove 2 is 1 / 3 to 1 / 2 of the length of the arc-shaped groove 1. The width of the arc-shaped mounting groove 2 matches the width of the arc-shaped liner 3. The arc-shaped liner 3 is embedded in the arc-shaped mounting groove 2 and can slide along the arc-shaped mounting groove 2. A positioning block 4 is provided in the arc-shaped mounting groove, which acts on the end of the arc-shaped liner 3 to position the arc-shaped liner.

[0027] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A protective base for a straightening machine, having a transverse arc-shaped groove, characterized in that: The surface of the arc-shaped groove is provided with an arc-shaped mounting groove, and a detachable arc-shaped liner is provided inside the arc-shaped mounting groove. The arc-shaped surface of the arc-shaped liner protrudes from the groove surface of the arc-shaped groove, and the pipe is supported on the arc-shaped surface of the arc-shaped liner.

2. The straightening machine protective seat according to claim 1, characterized in that: The arc length of the arc-shaped liner is less than the arc length of the arc-shaped groove, and the central angle of the arc-shaped liner is not greater than 120°.

3. The straightening machine protective seat according to claim 1, characterized in that: The width of the arc-shaped mounting groove matches the width of the arc-shaped liner. The arc-shaped liner is embedded in the arc-shaped mounting groove and can slide along the arc-shaped mounting groove. A positioning block is provided in the arc-shaped mounting groove, and the positioning block acts on the end of the arc-shaped liner to position the arc-shaped liner.

4. The straightening machine protective seat according to claim 1, characterized in that: The width of the arc-shaped mounting groove is 1 / 3 to 1 / 2 of the length of the arc-shaped groove.

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