Austenitic stainless steel pipe bending performance testing mechanism

Abstract

The present utility model relates to the technical field of austenitic stainless steel pipe bending performance testing. Disclosed is an austenitic stainless steel pipe bending performance testing mechanism, comprising: a secondary fixed block fixed at the bottom end of a hydraulic rod, and a primary fixed block fixed at the top of a semicircular plate, wherein the primary fixed block is provided with a slot into which the secondary fixed block can be inserted; the secondary fixed block is provided with a limiting groove, and a limiting block slides inside the limiting groove; and a spring capable of applying an elastic force to the limiting block is provided inside the limiting groove, and the primary fixed block is provided with a limiting hole into which the limiting block can be inserted. By providing a connecting mechanism, a semicircular plate provided with different arc-shaped grooves can be quickly replaced without fastening by means of bolts, thereby improving the replacement efficiency; additionally, by providing a rectangular block and a clamping mechanism, the deformation of two ends of a steel pipe can be avoided and the two ends of the steel pipe can be clamped, so that the steel pipe is prevented from falling off when rotating together with the rectangular block during bending, thereby improving the stability of the steel pipe during bending.

Description

An austenitic stainless steel pipe bending performance test mechanism TECHNICAL FIELD

[0001] The utility model relates to austenitic stainless steel pipe bending performance test technical field, specifically is a kind of austenitic stainless steel pipe bending performance test mechanism. BACKGROUND

[0002] Austenitic stainless steel refers to stainless steel with austenitic structure at room temperature.When the steel contains Cr about 18%,Ni 8%~25%,C about 0.1%,it has stable austenitic structure.Austenitic chromium-nickel stainless steel includes famous 18Cr-8Ni steel and high Cr-Ni series steel developed by increasing Cr and Ni content and adding Mo,Cu,Si,Nb,Ti and other elements.Austenitic stainless steel is non-magnetic and has high toughness and plasticity, but its strength is low, it cannot be strengthened by phase change, only by cold working, such as adding S,Ca,Se,Te and other elements, it has good easy cutting property.

[0003] The stainless steel pipe bending performance detection device with patent No.CN215931550U adjusts the lifting plate up and down by rotating the rotating handle, which is convenient for adjusting the bending size of the steel pipe. By starting the driving cylinder, the output shaft of the cylinder drives the first pressing block to bend the steel pipe. There is no need for manual bending of the steel pipe by using hydraulic jacks, which provides convenience for people to a certain extent. TECHNICAL PROBLEM

[0004] However, research shows that the existing austenitic stainless steel pipe bending performance test mechanism still has the following defects:

[0005] The existing austenitic stainless steel pipe bending performance test mechanism generally has an arc-shaped groove at the bottom of the pressing block to limit the steel pipe. When the steel pipe diameter needs to be replaced, the pressing block is generally installed by bolts, which slows down the installation efficiency. At the same time, the steel pipe lacks a limiting mechanism for pressing and bending the steel pipe at both ends. When the steel pipe is bent, the ends of the steel pipe may be extruded and deformed. Therefore, technical innovation and design optimization are needed to optimize the austenitic stainless steel pipe bending performance test mechanism. TECHNICAL SOLUTION

[0006] The existing stainless steel pipe bending performance test mechanism generally has an arc-shaped groove at the bottom of the pressing block, which can limit the steel pipe. When the pipe diameter is different, the pressing block needs to be replaced. Generally, it is installed through bolts, which causes slow installation efficiency. Meanwhile, the steel pipe lacks a limiting mechanism when pressing and bending the steel pipe at both ends. When bending the steel pipe, the ends of the steel pipe may be extruded and deformed. In order to solve the above problems, the application provides an austenitic stainless steel pipe bending performance test mechanism. The connecting mechanism is provided to quickly replace the semicircular plate provided with different arc-shaped grooves, without the need for fastening through bolts, thereby speeding up the replacement efficiency. Meanwhile, the rectangular block and clamping mechanism are provided to avoid deformation of the steel pipe at both ends and clamp the ends of the steel pipe, thereby avoiding the steel pipe from falling off when rotating with the rectangular block during bending, and improving the stability of the steel pipe during bending.

[0007] The technical scheme adopted by the application to solve the technical problems is:

[0008] An austenitic stainless steel pipe bending performance test mechanism comprises:

[0009] A support frame;

[0010] The support frame top is provided with a hydraulic pump capable of controlling a hydraulic rod, the hydraulic pump bottom end is connected with a hydraulic rod, the hydraulic rod bottom is provided with a semicircular plate capable of pressing the steel pipe, and the semicircular plate and the hydraulic rod bottom end are provided with a connecting mechanism.

[0011] In a possible implementation, the support frame comprises a bottom plate, both sides of the bottom plate top are fixed with support plates, the support plates top are fixed with a top plate, the hydraulic pump is installed on the top plate top, the hydraulic rod penetrates the top plate, and the bottom plate is provided with a groove, which facilitates the downward pressing of the semicircular plate on the steel pipe.

[0012] In a possible implementation, the connecting mechanism comprises a secondary fixed block fixed at the hydraulic rod bottom end, the semicircular plate top is fixed with a primary fixed block, the primary fixed block is provided with an insertion slot allowing the secondary fixed block to be inserted, the secondary fixed block is provided with a limiting slot, the limiting slot is slidably provided with a limiting block, the limiting slot is provided with a spring capable of applying an elastic force to the limiting block, and the primary fixed block is provided with a limiting hole allowing the limiting block to be inserted. The primary fixed block on the top of the semicircular plate is aligned with the secondary fixed block and inserted upward. When the primary fixed block contacts the limiting block, the limiting block is extruded into the limiting slot. Meanwhile, the limiting block extrudes the spring. When the limiting hole on the primary fixed block is aligned with the limiting block, the limiting block is inserted into the limiting hole under the action of the spring. In this way, the primary fixed block and the secondary fixed block are quickly fixed without the need for fastening through bolts.

[0013] In a possible implementation, the two sides of the top of the base plate are fixed with two fixed plates, and the two adjacent fixed plates are rotatably connected with a rotatable rectangular block through a rotating shaft, the top of the rectangular block is provided with a clamping mechanism capable of clamping the steel pipe, and the rectangular block can rotate with the bending of the steel pipe.

[0014] In a possible implementation, the clamping mechanism comprises a U-shaped plate fixed on the top of the rectangular block, the top of the rectangular block is fixed with a clamping block two, the bottom of the U-shaped plate is provided with a clamping block one, a rotatable lead screw is penetrated through the U-shaped plate, and the bottom end of the lead screw is rotatably connected with the clamping block one through a rotating shaft.

[0015] In a possible implementation, the bottom of the semicircular plate is provided with an arc-shaped groove capable of accommodating the steel pipe, so as to avoid the sliding of the steel pipe when the steel pipe is pressed.

[0016] In a possible implementation, one end of the spring is fixedly connected with the limiting block, and the other end is fixedly connected with the secondary fixed block, so as to avoid the falling of the limiting block.

[0017] In a possible implementation, the side of the limiting block opposite to the spring is provided with a slope, and the slope faces the base plate, so as to facilitate the extrusion of the limiting block by the main fixed block. Beneficial effects

[0018] In summary, the utility model has at least one of the following beneficial technical effects:

[0019] 1. By pressing the limiting block, the semicircular plate is pulled down, when the main fixed block contacts the slope of the limiting block, the limiting block is extruded into the limiting groove, the semicircular plate can be taken down, the main fixed block on the top of the semicircular plate is inserted upwards to the secondary fixed block, the limiting block is extruded into the limiting groove, when the limiting hole on the main fixed block is aligned with the limiting block, the limiting block is inserted into the limiting hole under the action of the spring, so that the main fixed block and the secondary fixed block are quickly fixed, without fastening through bolts, and the efficiency of replacement is improved.

[0020] 2. When the steel pipe is bent, the rectangular block can rotate with the bending of the steel pipe, the two ends of the steel pipe are inserted between the clamping block one and the clamping block two, the clamping block one is moved downwards by rotating the lead screw, the steel pipe is clamped by cooperating with the clamping block two, the two ends of the steel pipe are prevented from sliding and falling off with the rotation of the rectangular block, and the stability of the steel pipe during bending is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a schematic diagram of the overall structure of the utility model;

[0022] Fig. 2 is an enlarged schematic diagram of the mechanism at A in Fig. 1;

[0023] Figure 3 is the main fixed block and secondary fixed block internal structure of the utility model cutaway view;

[0024] Figure 4 is the partial structure cutaway view of the utility model.

[0025] Reference signs: 1, bottom plate; 2, support plate; 3, top plate; 4, hydraulic pump; 5, groove; 6, U-shaped plate; 7, fixed plate; 8, hydraulic rod; 9, semicircle plate; 10, arc slot; 11, main fixed block; 12, secondary fixed block; 13, limit block; 14, slot; 15, limit slot; 16, limit hole; 17, screw rod; 18, clamping block one; 19, clamping block two; 20, rectangular block. Embodiment of the application

[0026] The technical solutions in the utility model will be described clearly and completely below in conjunction with the drawings in the utility model, and additionally, the forms of each structure described in the following embodiments are only examples, and the instrument placing rack involved in the utility model is not limited to each structure described in the following embodiments, and all other embodiments obtained by the person skilled in the art without making creative efforts belong to the protection scope of the utility model.

[0027] The embodiment introduces the specific structure of the austenitic stainless steel pipe bending performance testing mechanism, and specifically refers to the specific structure of the austenitic stainless steel pipe bending performance testing mechanism shown in FIG. 1-4, which comprises:

[0028] Support frame;

[0029] Wherein, the support frame top is provided with a hydraulic pump 4 capable of controlling the hydraulic rod 8, the hydraulic pump 4 bottom end is connected with the hydraulic rod 8, the hydraulic rod 8 bottom is provided with a semicircle plate 9 capable of pressing the steel pipe, and a connecting mechanism is arranged between the semicircle plate 9 and the hydraulic rod 8 bottom end.

[0030] When the semicircle plate 9 presses the steel pipe downward, the support frame comprises a bottom plate 1, the bottom plate 1 top two sides are fixed with support plates 2, the two support plates 2 top are fixed with a top plate 3, the hydraulic pump 4 is installed on the top plate 3 top, the hydraulic rod 8 penetrates the top plate 3, and the bottom plate 1 is provided with a groove 5, so that the semicircle plate 9 can press the steel pipe downward.

[0031] When facing different pipe diameter steel pipe, the arc-shaped groove 10 on the semicircular plate 9 cannot limit the steel pipe, and the semicircular plate 9 needs to be replaced, the connecting mechanism includes a secondary fixed block 12 fixed at the bottom end of the hydraulic rod 8, a primary fixed block 11 fixed at the top of the semicircular plate 9, a insertion slot 14 provided on the primary fixed block 11 and allowing the secondary fixed block 12 to insert, a limiting slot 15 provided on the secondary fixed block 12 and slidingly limiting the limiting block 13, a spring provided in the limiting slot 15 and capable of applying a elastic force to the limiting block 13, and a limiting hole 16 provided on the primary fixed block 11 and allowing the limiting block 13 to insert, the primary fixed block 11 at the top of the semicircular plate 9 is inserted upwards in alignment with the secondary fixed block 12, when the primary fixed block 11 contacts the limiting block 13, the limiting block 13 is pressed into the limiting slot 15, and the limiting block 13 presses the spring, when the limiting hole 16 on the primary fixed block 11 is aligned with the limiting block 13, the limiting block 13 is inserted into the limiting hole 16 under the action of the spring, thereby quickly fixing the primary fixed block 11 and the secondary fixed block 12 without the need for fastening by bolts.

[0032] When the steel pipe is bent, the two ends of the steel pipe will be inclined downward, and two fixed plates 7 are fixed on both sides of the top of the bottom plate 1, a rotatable rectangular block 20 is rotatably connected between two adjacent fixed plates 7 through a rotating shaft, the rectangular block 20 is provided with a clamping mechanism capable of clamping the steel pipe at the top of the rectangular block 20, and the rectangular block 20 can rotate with the bending of the steel pipe.

[0033] Meanwhile, the clamping mechanism includes a U-shaped plate 6 fixed at the top of the rectangular block 20, a clamping block two 19 fixed at the top of the rectangular block 20, a clamping block one 18 provided at the bottom of the U-shaped plate 6, a rotatable lead screw 17 penetrating through the U-shaped plate 6, and the lead screw 17 is rotatably connected with the clamping block one 18 at the bottom end through a rotating shaft, rotating the lead screw 17 can drive the clamping block one 18 to move downward, and the clamping block two 19 is used to clamp the steel pipe, thereby avoiding the steel pipe from sliding off.

[0034] In addition, an arc-shaped groove 10 is provided at the bottom of the semicircular plate to accommodate the steel pipe, thereby avoiding the steel pipe from sliding when pressing the steel pipe.

[0035] When the spring applies an elastic force to the limiting block 13, one end of the spring is fixedly connected with the limiting block 13, and the other end is fixedly connected with the secondary fixed block 12, thereby avoiding the limiting block 13 from falling off.

[0036] When the primary fixed block 11 presses the limiting block 13, the side of the limiting block 13 relative to the spring is provided with a slope, and the slope faces the direction of the bottom plate 1, thereby facilitating the primary fixed block 11 to press the limiting block 13.

[0037] When the staff needs to press bend the steel pipe of different pipe diameter, the arc-shaped groove 10 of the semicircular plate 9 cannot adapt to all pipe diameters of the steel pipe, at this time, the semicircular plate 9 needs to be replaced, the pressing limiting block 13 is pressed, when the limiting block 13 is pressed into the column fixing block flush, at this time, the semicircular plate 9 is pulled down, when the main fixing block 11 contacts the inclined surface of the limiting block 13, the limiting block 13 is extruded into the limiting groove 15, and the limiting block 13 extrudes the spring, so that the semicircular plate 9 can be taken off, the main fixing block 11 at the top of the new semicircular plate 9 is aligned with the secondary fixing block 12 and inserted upwards, when the main fixing block 11 contacts the limiting block 13, the limiting block 13 is extruded into the limiting groove 15, and the limiting block 13 extrudes the spring, when the limiting hole 16 on the main fixing block 11 is aligned with the limiting block 13, the limiting block 13 is inserted into the limiting hole 16 under the action of the spring, so that the main fixing block 11 and the secondary fixing block 12 are quickly fixed, without being fastened by bolts, the efficiency of replacement is accelerated, the two ends of the steel pipe are inserted between the clamping block one 18 and the clamping block two 19, the clamping block one 18 is driven to move downward by rotating the lead screw 17, the steel pipe is clamped by cooperating with the clamping block two 19, so that the steel pipe is prevented from slipping off when being pressed, then the hydraulic pump 4 is started, the hydraulic pump 4 drives the hydraulic rod 8 to move downward, the hydraulic rod 8 drives the semicircular plate 9 to press the steel pipe, so that the steel pipe is bent, when the steel pipe is bent, the rectangular block 20 can rotate with the bending of the steel pipe, so that the two ends of the steel pipe are prevented from being extruded and damaged by the rectangular block 20.

[0038] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and are not limited to the implementation. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the implementation modes need not be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. An austenitic stainless steel pipe bendability testing mechanism characterized by comprising: Include: Support frame; Wherein, the support frame top mounted hydraulic pump (4), the hydraulic pump (4) bottom end connected with hydraulic rod (8), the hydraulic rod (8) bottom is equipped with semicircle plate (9), the semicircle plate (9) and hydraulic rod (8) bottom end between the connecting mechanism is equipped with.

2. An austenitic stainless steel tube bend performance testing mechanism as claimed in claim 1, characterized in that: The support frame includes a bottom plate (1), the bottom plate (1) top two sides are fixed with support plate (2), two support plate (2) top fixed with a top plate (3), the hydraulic pump (4) is installed on the top plate (3) top, the hydraulic rod (8) penetrates the top plate (3), the bottom plate (1) is provided with recess (5).

3. An austenitic stainless steel tube bend performance testing mechanism as claimed in claim 1, wherein: The connecting mechanism includes hydraulic rod (8) bottom fixed secondary fixed block (12), the semicircle plate (9) top fixed with main fixed block (11), the main fixed block (11) is provided with slot (14), the secondary fixed block (12) is provided with limit slot (15), the limit slot (15) is slidably connected with limit block (13), the limit slot (15) is provided with spring, the main fixed block (11) is provided with limit hole (16).

4. An austenitic stainless steel tube bend performance testing mechanism as claimed in claim 2, wherein: The bottom plate (1) top two sides are fixed with two fixed plates (7), two adjacent fixed plate (7) are rotatably connected with rectangular block (20) through the pivot, the rectangular block (20) top is equipped with the clamping mechanism capable of clamping the steel pipe.

5. An austenitic stainless steel tube bend performance testing mechanism as claimed in claim 4, characterized in that: The clamping mechanism includes U-shaped plate (6) fixed on the rectangular block (20) top, the rectangular block (20) top is fixed with clamp block two (19), the U-shaped plate (6) bottom is equipped with clamp block one (18), the U-shaped plate (6) is penetrated with screw rod (17), the screw rod (17) bottom end is rotatably connected with clamp block one (18) through the pivot.

6. An austenitic stainless steel tube bend performance testing mechanism as claimed in claim 1, wherein: The semicircle plate bottom is provided with arc slot (10) capable of containing steel pipe.

7. An austenitic stainless steel tube bend performance testing mechanism as claimed in claim 3, wherein: One end of the spring is fixedly connected with the limit block (13), and the other end is fixedly connected with the secondary fixed block (12).

8. An austenitic stainless steel tube bend performance testing mechanism as claimed in claim 7, characterized in that: The limit block (13) is provided with a slope on the side opposite to the spring, and the slope faces the bottom plate (1).

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