A load test device for a cold-bent hem corner of a duplex stainless steel

Abstract

The utility model relates to a kind of bearing test device of duplex stainless steel cold bending hemming angle steel, including bearing test pool main body, support, vibration test component and tension and compression test component, support is fixedly connected on the top outer wall of bearing test pool main body, vibration test component is installed between the support and bearing test pool main body, tension and compression test component is installed in bearing test pool main body;The vibration test component includes cylinder, lifting frame, connecting plate, lifting hole, vibration rod and arc connecting disc;The utility model has adopted vibration test component, angle steel can be placed to micro-corrosive solution, vibration test can also be carried out to angle steel simultaneously, to increase the complexity of test, to simulate test environment, improve test effect;Tension and compression test component is adopted, when vibration test, tension and compression test can be carried out to angle steel, without additional driving structure driving, reduce test burden, improve test effect.

Description

Technical Field

[0001] This utility model relates to the field of angle steel load-bearing testing technology, and in particular to a load-bearing testing device for duplex stainless steel cold-bent rolled angle steel. Background Technology

[0002] Cold-formed angle steel is a long strip of steel made from steel plates or strips through a cold-forming process. Its two sides are perpendicular and form an angle, and it is divided into two types: equilateral and unequal-sided. It belongs to carbon structural steel and must possess weldability, plastic deformation performance, and mechanical strength. Duplex stainless steel cold-formed rolled angle steel is one such type. Load-bearing tests on duplex stainless steel cold-formed rolled angle steel require a load-bearing testing device. However, existing load-bearing testing devices generally do not easily place the angle steel in a slightly corrosive solution and can also perform vibration tests, resulting in a limited testing range and reduced testing effectiveness. Furthermore, vibration tests generally do not easily allow for tensile and compressive testing of the angle steel, requiring an additional driving structure, increasing the testing burden and further reducing the effectiveness of the test. Utility Model Content

[0003] The problem solved by this utility model is to provide a load-bearing testing device for duplex stainless steel cold-bent edge angle steel. The device can place the angle steel in a slightly corrosive solution and also perform vibration testing on the angle steel, thereby increasing the complexity of the test, simulating the test environment, and improving the test effect. Moreover, during the vibration test, the angle steel can be subjected to tensile and compressive tests without the need for an additional drive structure, reducing the test burden and improving the test effect.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a load-bearing test device for duplex stainless steel cold-bent edge-rolled angle steel, comprising a load-bearing test pool body, a support, a vibration test component, and a tension-compression test component. The support is fixedly connected to the top outer wall of the load-bearing test pool body, the vibration test component is installed between the support and the load-bearing test pool body, and the tension-compression test component is installed inside the load-bearing test pool body. The vibration testing assembly includes a cylinder, a lifting frame, a connecting plate, lifting holes, a vibration rod, an arc-shaped connecting plate, a first spring, a lead screw, an elliptical wheel, an arc-shaped protrusion, and an internally threaded sleeve. Cylinders are symmetrically mounted on the support. The bottom end of the piston rod of each cylinder is fixed to the lifting frame. The bottom end of the lifting frame is fixed to the connecting plate. The connecting plate has symmetrically opened lifting holes. A vibration rod is fitted into each lifting hole, and the top end of the vibration rod is attached to the inner wall of the top end of the lifting frame. The bottom end of the vibration rod is fixed to the arc-shaped connecting plate. The top end of the arc-shaped connecting plate is fixed to the first spring, and the top end of the first spring is fixed to the outer wall of the lifting frame. The bottom end of the connecting plate is rotatably connected to a lead screw. An elliptical wheel is fixed to the outer side of the lead screw. Arc-shaped protrusions are symmetrically fixed to the outer wall of the top end of the elliptical wheel, corresponding to the position of the arc-shaped connecting plate. An internally threaded sleeve is fixed to the inner wall of the bottom end of the bearing test pool body, corresponding to the position of the lead screw.

[0005] Preferably, the tension / compression testing assembly includes a vertical plate, a guide hole, a guide sleeve, an adjusting plate, a connecting ring, a second spring, a telescopic rod, and a locking frame. The vertical plate is symmetrically fixed to the top outer wall of the lifting frame. A guide hole is provided on the vertical plate, and a guide sleeve is fitted inside the guide hole. An adjusting plate is fixed to the outer wall of one end of the guide sleeve, with one side of the adjusting plate located outside the elliptical wheel. A connecting ring is fixed to the outer side of the guide sleeve. A telescopic rod is fitted inside the guide sleeve. A locking frame is fixed to the outer wall of one end of the telescopic rod. A second spring is fixed to the outer wall of one side of the locking frame, and the other end of the second spring is fixed to the outer wall of the connecting ring.

[0006] Preferably, a drain pipe is connected through one side of the outer wall of the main body of the test pool, and a valve is installed on the drain pipe.

[0007] Preferably, the engaging frame has a threaded hole, and a bolt is threaded into the threaded hole.

[0008] Preferably, the locking frame is U-shaped, and the two locking frames are symmetrical to each other.

[0009] The beneficial effects of this utility model are: by adopting a vibration testing component, the angle steel can be placed in a slightly corrosive solution and vibration testing can be performed on the angle steel, thereby increasing the complexity of the test, simulating the test environment, and improving the test effect. The tensile and compressive testing components are adopted, which can perform tensile and compressive tests on angle steel during vibration testing without the need for an additional drive structure, thus reducing the testing burden and improving the testing effect. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a front sectional view of the present invention; Figure 3 This utility model Figure 2 Partial cross-sectional structural diagram; Figure 4 This is a three-dimensional structural diagram of the present invention.

[0011] Legend: 1. Load-bearing test pool body; 2. Support frame; 3. Vibration test assembly; 4. Tension and compression test assembly; 5. Drain pipe; 6. Valve; 7. Threaded hole; 8. Bolt; 301. Cylinder; 302. Lifting frame; 303. Connecting plate; 304. Lifting hole; 305. Vibration rod; 306. Arc-shaped connecting plate; 307. First spring; 308. Lead screw; 309. Elliptical wheel; 3010. Arc-shaped protrusion; 3011. Internal threaded sleeve; 401. Vertical plate; 402. Guide hole; 403. Guide sleeve; 404. Adjusting plate; 405. Connecting ring; 406. Second spring; 407. Telescopic rod; 408. Locking frame. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example

[0013] See Figure 2 and Figure 4 A load-bearing testing device for duplex stainless steel cold-bent edge angle steel includes a load-bearing test tank body 1, a support 2, a vibration test component 3, and a tension / compression test component 4. The support 2 is fixed to the top outer wall of the load-bearing test tank body 1, and the vibration test component 3 is installed between the support 2 and the load-bearing test tank body 1. The tension / compression test component 4 is installed inside the load-bearing test tank body 1. A drain pipe 5 is connected through one side outer wall of the load-bearing test tank body 1, and a valve 6 is installed on the drain pipe 5. After the test is completed, the valve 6 is opened to allow the test solution to be discharged through the drain pipe 5. A threaded hole 7 is opened on the locking frame 408, and a bolt 8 is threadedly connected to the threaded hole 7. The angle steel is locked into the locking frame 408, and then the bolt 8 is turned to rotate and descend along the threaded hole 7, thereby fixing the position of the angle steel. The vibration testing assembly 3 includes a cylinder 301, a lifting frame 302, a connecting plate 303, a lifting hole 304, a vibration rod 305, an arc-shaped connecting plate 306, a first spring 307, a lead screw 308, an elliptical wheel 309, an arc-shaped protrusion 3010, and an internally threaded sleeve 3011. The cylinder 301 is symmetrically mounted on the bracket 2. The bottom end of the piston rod of the cylinder 301 is fixed to the lifting frame 302, and the bottom end of the lifting frame 302 is fixed to the connecting plate 303. The connecting plate 303 has symmetrically opened lifting holes 304, and the vibration rod 305 is sleeved inside the lifting hole 304, with the top end of the vibration rod 305 attached to... The top inner wall of the lifting frame 302 is connected to the vibration rod 305. The bottom end of the vibration rod 305 is fixed to the arc-shaped connecting plate 306. The top end of the arc-shaped connecting plate 306 is fixed to the first spring 307, and the top end of the first spring 307 is fixed to the outer wall of the lifting frame 302. The bottom end of the connecting plate 303 is rotatably connected to the lead screw 308. The outer side of the lead screw 308 is fixed to the elliptical wheel 309. The top outer wall of the elliptical wheel 309 is symmetrically fixed to the arc-shaped connecting plate 306. The bottom inner wall of the bearing test pool body 1 is fixed to the lead screw 308. The internal thread sleeve 3011 is fixed to the lead screw 308.

[0014] Working principle: First, the angle steel is clamped into the clamping frame 408. Then, the bolt 8 is tightened, causing it to rotate and descend along the threaded hole 7, thus fixing the angle steel in position. Next, a 5% sodium chloride solution is placed into the main body 1 of the load-bearing test pool to simulate a marine environment. At this time, the cylinder 301 on the support 2 is activated to lower the lifting frame 302, immersing the angle steel on the lifting frame 302 in the slightly corrosive solution. Then, the cylinder 301 is activated again to reciprocate the lifting frame 302. Under the action of the internal threaded sleeve 3011, the lead screw 308 reciprocates, and then the elliptical wheel 30... The arc-shaped protrusion 3010 on plate 9 presses against the arc-shaped connecting plate 306, causing the vibration rod 305 to rise along the lifting hole 304 on the connecting plate 303. When the arc-shaped protrusion 3010 separates from the arc-shaped connecting plate 306, the vibration rod 305 vibrates along the lifting hole 304 on the connecting plate 303 under the action of the first spring 307. The vibration rod 305 then vibrates the lifting frame 302, allowing the angle steel to be placed in a slightly corrosive solution and undergo vibration testing. This increases the complexity of the test, simulates the test environment, and improves the test effect. Example

[0015] See Figures 1-3The tension / compression test assembly 4 includes a vertical plate 401, a guide hole 402, a guide sleeve 403, an adjusting plate 404, a connecting ring 405, a second spring 406, a telescopic rod 407, and a locking frame 408. Vertical plates 401 are symmetrically fixed to the outer wall of the top of the lifting frame 302. Guide holes 402 are provided on the vertical plates 401, and guide sleeves 403 are fitted inside the guide holes 402. An adjusting plate 404 is fixed to the outer wall of one end of the guide sleeve 403, and one side of the adjusting plate 404 is located outside the elliptical wheel 309. A connecting ring 405 is fixedly connected to the outer side of the sleeve 403. A telescopic rod 407 is sleeved inside the guide sleeve 403. A locking frame 408 is fixedly connected to the outer wall of one end of the telescopic rod 407. A second spring 406 is fixedly connected to the outer wall of one side of the locking frame 408, and the other end of the second spring 406 is fixedly connected to the outer wall of the connecting ring 405. The locking frame 408 is U-shaped, and the two locking frames 408 are symmetrical to each other. The locking frame 408 can be sleeved with the angle steel through the U-shape, which facilitates the position installation of the angle steel.

[0016] While the lifting frame 302 is rising and falling, the elliptical wheel 309 on the lead screw 308 reciprocates under the action of the internal threaded sleeve 3011. The protruding part of the elliptical wheel 309 then presses against the adjusting plate 404, causing the guide sleeve 403 to move along the guide hole 402 on the vertical plate 401 and along the telescopic rod 407. This stretches the second spring 406 on the connecting ring 405, and the elastic force of the second spring 406 acts on the angle steel on the locking frame 408. When the flat part of the elliptical wheel 309 is flush with the adjusting plate 404, the guide sleeve 403 returns to its original position along the guide hole 402 on the vertical plate 401 under the action of the second spring 406. The compressed second spring 406 then acts on the angle steel, thus performing a tensile and compressive test on the angle steel. During vibration testing, the angle steel can be subjected to tensile and compressive tests without the need for an additional drive structure, reducing the testing burden and improving the testing effect.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A load-bearing testing device for duplex stainless steel cold-bent flanged angle steel, characterized in that, The test includes a load-bearing test pool body (1), a support (2), a vibration test component (3), and a tension and compression test component (4). The support (2) is fixed to the top outer wall of the load-bearing test pool body (1). The vibration test component (3) is installed between the support (2) and the load-bearing test pool body (1). The tension and compression test component (4) is installed inside the load-bearing test pool body (1). The vibration testing assembly (3) includes a cylinder (301), a lifting frame (302), a connecting plate (303), a lifting hole (304), a vibration rod (305), an arc-shaped connecting plate (306), a first spring (307), a lead screw (308), an elliptical wheel (309), an arc-shaped protrusion (3010), and an internally threaded sleeve (3011). The cylinder (301) is symmetrically mounted on the bracket (2). The piston rod of the cylinder (301) is fixedly connected to the bottom end of the lifting frame (302). The bottom end of the lifting frame (302) is fixedly connected to the bottom end of the connecting plate (303). The connecting plate (303) has symmetrically opened lifting holes (304). The vibration rod (305) is sleeved in the lifting hole (304), and the vibration rod (305) is... 5) The top end of the vibrating rod (305) is attached to the inner wall of the top end of the lifting frame (302). The bottom end of the vibrating rod (305) is fixed with an arc-shaped connecting plate (306). The top end of the arc-shaped connecting plate (306) is fixed with a first spring (307), and the top end of the first spring (307) is fixed to the outer wall of the lifting frame (302). The bottom end of the connecting plate (303) is rotatably connected with a lead screw (308). The outer side of the lead screw (308) is fixed with an elliptical wheel (309). The top outer wall of the elliptical wheel (309) is symmetrically fixed with an arc-shaped protrusion (3010) corresponding to the position of the arc-shaped connecting plate (306). The bottom inner wall of the bearing test pool body (1) is fixed with an internal threaded sleeve (3011) corresponding to the position of the lead screw (308).

2. The load-bearing testing device for duplex stainless steel cold-bent angle steel according to claim 1, characterized in that, The tension and compression test assembly (4) includes a vertical plate (401), a guide hole (402), a guide sleeve (403), an adjusting plate (404), a connecting ring (405), a second spring (406), a telescopic rod (407), and a locking frame (408). The vertical plate (401) is symmetrically fixed to the outer wall of the top of the lifting frame (302). The vertical plate (401) has a guide hole (402) on it. The guide sleeve (403) is sleeved in the guide hole (402). One end of the guide sleeve (403) is externally... An adjusting plate (404) is fixedly connected to the wall, and one side of the adjusting plate (404) is located outside the elliptical wheel (309). A connecting ring (405) is fixedly connected to the outer side of the guide sleeve (403). A telescopic rod (407) is sleeved inside the guide sleeve (403). A locking frame (408) is fixedly connected to the outer wall of one end of the telescopic rod (407). A second spring (406) is fixedly connected to the outer wall of one side of the locking frame (408), and the other end of the second spring (406) is fixedly connected to the outer wall of the connecting ring (405).

3. The load-bearing testing device for duplex stainless steel cold-bent angle steel according to claim 1, characterized in that, A drain pipe (5) is connected through one side of the outer wall of the main body (1) of the load-bearing test pool, and a valve (6) is installed on the drain pipe (5).

4. The load-bearing testing device for duplex stainless steel cold-bent angle steel according to claim 2, characterized in that, The locking frame (408) has a threaded hole (7), and a bolt (8) is threaded into the threaded hole (7).

5. The load-bearing testing device for duplex stainless steel cold-bent angle steel according to claim 2, characterized in that, The shape of the locking frame (408) is U-shaped, and the two locking frames (408) are symmetrical to each other.

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