Tensile strength testing tool for bearing steel pipe
By designing a test tool including a base plate, a vertical plate, an electric telescopic rod, a tension sensor, a support seat, a pressing block and a pressing member, the problem of insufficient clamping and fixing of the bearing steel pipe in the tensile strength test in the prior art is solved, and more stable steel pipe fixing and more accurate test results are achieved.
Patent Information
- Application Number
- CN202421582916.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-05
AI Technical Summary
The existing tensile strength testing tooling for bearing steel pipes has shortcomings in clamping and fixing, which leads to the tendency of steel pipes to slip during the test, affecting the test results.
A test tool including a base plate, a vertical plate, an electric telescopic rod, a tension sensor, a support seat, a pressing block and a pressing member was designed. Through the double-layer clamping fixation and the coordination of the electric telescopic rod, the stability of the steel pipe during the test process is ensured.
Through the cooperation of double-layer clamping fixation and electric telescopic rods, the stability of the bearing steel pipe is significantly improved, the probability of slippage is reduced, and the testing process is more stable and accurate.
Smart Images
Figure CN222926500U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of tensile strength testing of bearing steel pipes, and particularly to a tensile strength testing tooling for bearing steel pipes. Background Art
[0002] At present, bearing steel pipes refer to seamless steel pipes that are hot-rolled or cold-rolled (cold-drawn), and are used to manufacture the rolling elements and rings of rolling bearings; bearing steel pipes are generally developing towards high quality, high performance, and multiple varieties.
[0003] However, there are the following defects in an existing tensile strength testing tooling for bearing steel pipes: for example, the existing equipment only performs single-layer clamping and fixing on both ends of the bearing steel pipe, resulting in insufficient fixing strength for the bearing steel pipe. When pulling the bearing steel pipe to move for testing, it is very easy to slip, affecting the test results. Therefore, it is necessary to design a tensile strength testing tooling for bearing steel pipes. Utility Model Content
[0004] The purpose of this application is to improve the firmness of clamping and fixing the bearing steel pipe, so as to facilitate more accurate subsequent tensile strength testing of the bearing steel pipe.
[0005] To achieve the above purpose, the technical solution adopted in this application is: a tensile strength testing tooling for bearing steel pipes, including a bottom plate. Two vertical plates distributed left and right are fixedly connected to the upper end of the bottom plate. First electric telescopic rods are fixedly connected to one end of the two vertical plates close to each other. Output ends of the two first electric telescopic rods are fixedly connected with telescopic connecting rods. Output ends of the two telescopic connecting rods are fixedly connected with tensile sensors. Two first support seats distributed left and right are placed on the upper end of the bottom plate. The two tensile sensors are respectively fixedly connected with the two first support seats. Second electric telescopic rods are fixedly connected to the front ends of the two first support seats. Output ends of the two second electric telescopic rods are fixedly connected with first pressing blocks. The two first pressing blocks are respectively located directly above the two first support seats and are slidably connected between the two first support seats. Compressing members are connected to one end of the two first pressing blocks away from each other; the compressing member includes a fixing frame, a connecting rod, a connecting seat, a sliding rod, a spring, a second pressing block, and a second support seat. Second pressing blocks are slidably connected to one end of the two first pressing blocks away from each other. Sliding rods are fixedly connected to the upper ends of the two second pressing blocks. Connecting seats are slidably connected to the circumferential surfaces of the two sliding rods. Springs are sleeved on the circumferential surfaces of the two sliding rods. One end of the spring is fixedly connected with the second pressing block, and the other end of the spring is fixedly connected with the connecting seat. Second support seats are fixedly connected to one end of the two first support seats away from each other. The second support seat is located directly below the second pressing block. Fixing frames are fixedly connected to the circumferential surfaces of the two telescopic connecting rods. Connecting rods are rotatably connected to the inside of the two fixing frames. The two connecting rods are respectively rotatably connected to the two connecting seats.
[0006] As a preference, sliding holes are formed in the upper end faces of the two first pressing blocks. A sliding block is slidably connected inside the sliding holes. The sliding block is fixedly connected to the second pressing block. The end faces of the sliding holes and the sliding blocks in a top view are T-shaped.
[0007] As another preference, arc-shaped holes are formed in the left end faces of the first pressing block, the first support base, the second pressing block, and the second support base.
[0008] Further preferably, two connecting rods distributed front and back are rotatably connected inside each fixing frame. The two connecting rods are respectively located at the front and rear ends of the arc-shaped hole.
[0009] Further preferably, a guide rod is fixedly connected between the two vertical plates. The guide rod penetrates through the two first support bases, and the two first support bases are both slidably connected to the guide rod.
[0010] Further preferably, guide telescopic rods are fixedly connected to the rear ends of the two first support bases. The output ends of the two guide telescopic rods are respectively fixedly connected to the two first pressing blocks.
[0011] Compared with the prior art, the beneficial effects of this application are as follows:
[0012] Through the mutual cooperation of the first support base, the first pressing block, the first electric telescopic rod, and the pressing member, the two ends of the bearing steel pipe can be clamped and fixed in a double layer, so that the steel pipe can be clamped more firmly, facilitating more accurate subsequent tensile strength testing work on the bearing steel pipe. In addition, as the two first electric telescopic rods contract, they will drive the two telescopic connecting rods to move telescopically, and at the same time drive the fixing frame to move. At this time, with the cooperation of the connecting rods, it will drive the connecting seat to move downward along the sliding rod and compress the spring. When the spring is compressed, the reaction force it has will provide a downward force to the second pressing block, making the second pressing block press more firmly on the upper end of the bearing steel pipe, so that the bearing steel pipe is more stably located in the second support base. Until the two telescopic connecting rods can no longer be telescoped, under the action of the tension sensor, the two first support bases will be driven to move away from each other. Therefore, when pulling the bearing steel pipe to move for testing, the probability of the bearing steel pipe slipping is reduced, and finally the testing process is more stable and the result is more accurate. Description of the Drawings
[0013] Figure 1 It is the overall structural schematic diagram of the main view of a tensile strength testing tooling for a kind of bearing steel pipe;
[0014] Figure 2 It is for a kind of tensile strength testing tooling for a bearing steel pipe Figure 1 The enlarged structural schematic diagram of A in it;
[0015] Figure 3It is a schematic diagram of the overall structure of the left view of a tensile strength test tooling for a bearing steel pipe;
[0016] Figure 4 For the tensile strength test tooling of a bearing steel pipe Figure 3 The enlarged structural schematic diagram of B in it.
[0017] In the figure: 1. Base plate; 2. Guide rod; 3. First support seat; 4. First pressing block; 5. Vertical plate; 6. First electric telescopic rod; 7. Tensile force sensor; 8. Guide telescopic rod; 9. Second electric telescopic rod; 10. Fixed frame; 11. Link rod; 12. Connecting seat; 13. Second pressing block; 14. Second support seat; 15. Spring; 16. Slide rod; 17. Telescopic connecting rod. Specific implementation manners
[0018] Next, in combination with specific implementation manners, the present application will be further described. It should be noted that, on the premise of no conflict, any combination can be formed among the following-described embodiments or technical features to form a new embodiment.
[0019] Such as Figures 1-4A tensile strength testing tooling for bearing steel pipes shown in the figure includes a bottom plate 1. At the upper end of the bottom plate 1, two vertical plates 5 distributed left and right are fixedly connected. At one end of the two vertical plates 5 close to each other, a first electric telescopic rod 6 is fixedly connected. At the output ends of the two first electric telescopic rods 6, a telescopic connecting rod 17 is fixedly connected. At the output ends of the two telescopic connecting rods 17, a tensile force sensor 7 is fixedly connected. On the upper end of the bottom plate 1, two first support seats 3 distributed left and right are placed. The two tensile force sensors 7 are respectively fixedly connected to the two first support seats 3. At the front ends of the two first support seats 3, a second electric telescopic rod 9 is fixedly connected. At the output ends of the two second electric telescopic rods 9, a first pressing block 4 is fixedly connected. The two first pressing blocks 4 are respectively located directly above the two first support seats 3 and are slidably connected to the two first support seats 3 respectively. At one end of the two first pressing blocks 4 away from each other, a pressing member is connected; the pressing member includes a fixed frame 10, a connecting rod 11, a connecting seat 12, a sliding rod 16, a spring 15, a second pressing block 13 and a second support seat 14. At one end of the two first pressing blocks 4 away from each other, a second pressing block 13 is slidably connected. At the upper ends of the two second pressing blocks 13, a sliding rod 16 is fixedly connected. On the circumferential surfaces of the two sliding rods 16, a connecting seat 12 is slidably connected. On the circumferential surfaces of the two sliding rods 16, a spring 15 is sleeved. One end of the spring 15 is fixedly connected to the second pressing block 13, and the other end of the spring 15 is fixedly connected to the connecting seat 12. At one end of the two first support seats 3 away from each other, a second support seat 14 is fixedly connected. The second support seat 14 is located directly below the second pressing block 13. On the circumferential surfaces of the two telescopic connecting rods 17, a fixed frame 10 is fixedly connected. Inside the two fixed frames 10, a connecting rod 11 is rotatably connected. The two connecting rods 11 are respectively rotatably connected to the two connecting seats 12. During operation, through the mutual cooperation of the first support seat 3, the first pressing block 4, the first electric telescopic rod 6 and the pressing member, the two ends of the bearing steel pipe can be clamped and fixed in a double layer, so that the steel pipe can be clamped more firmly, facilitating more accurate subsequent tensile strength testing work on the bearing steel pipe.
[0020] As a preference, sliding holes are provided on the upper end surfaces of the two first pressing blocks 4. Inside the sliding holes, a sliding block is slidably connected. The sliding block is fixedly connected to the second pressing block 13. The end surfaces of the sliding holes and the sliding blocks in a top view are in a T shape. During operation, this makes the second pressing block 13 move more stably relative to the first pressing block 4.
[0021] As another preference, arc-shaped holes are provided on the left end surfaces of the first pressing block 4, the first support seat 3, the second pressing block 13 and the second support seat 14. During operation, anti-slip paint is coated inside the arc-shaped holes, and then the bearing steel pipe can be clamped more firmly inside the arc-shaped holes.
[0022] Further preferably, two link rods 11 distributed front and back are rotatably connected inside each fixing frame 10, and the two link rods 11 are respectively located at the front and rear ends of the arc-shaped holes. During operation, the presence of the link rods 11 in this way does not easily affect the installation of the bearing steel pipes.
[0023] Further preferably, a guide rod 2 is fixedly connected between the two vertical plates 5, the guide rod 2 penetrates through the two first support seats 3, and the two first support seats 3 are both slidably connected to the guide rod 2. During operation, under the action of the guide rod 2, the two first support seats 3 move more stably.
[0024] Further preferably, guide telescopic rods 8 are fixedly connected to the rear ends of the two first support seats 3, and the output ends of the two guide telescopic rods 8 are respectively fixedly connected to the two first pressing blocks 4. During operation, under the action of the guide telescopic rods 8, the two first pressing blocks 4 perform lifting operations more stably.
[0025] Working principle:
[0026] In use, control the first electric telescopic rod 6 to operate to drive the first pressing block 4 to move upward until a suitable height is reached between the first pressing block 4 and the first support seat 3. Then move the second pressing block 13 upward along the first pressing block 4 to make a suitable height between the second pressing block 13 and the second support seat 14. At the same time, the second pressing block 13 drives the sliding rod 16 to move upward along the connecting seat 12, and the spring 15 is compressed. Then install the bearing steel pipe in the first support seat 3 and the second support seat 14. Then release the second pressing block 13. Under the action of the spring 15, the second pressing block 13 presses on the upper end of the bearing steel pipe. Then control the second electric telescopic rod 9 to operate in the reverse direction to make the first pressing block 4 tightly press on the upper end of the bearing steel pipe. At this time, the bearing steel pipe is clamped and fixed by the double layers of the first support seat 3, the first pressing block 4, the second support seat 14 and the second pressing block 13, so that the bearing steel pipe is more firmly clamped and fixed. Then control the two first electric telescopic rods 6 to contract and operate. The two first electric telescopic rods 6 respectively drive the two telescopic connecting rods 17 to perform telescopic movement, and at the same time drive the fixed frame 10 to move. At this time, with the cooperation of the connecting rod 11, it drives the connecting seat 12 to move downward along the sliding rod 16 and compress the spring 15. When the spring 15 is compressed, the reaction force it has will provide a downward moving force to the second pressing block 13, making the second pressing block 13 press more firmly on the upper end of the bearing steel pipe. In this way, the bearing steel pipe will be more stably located in the second support seat 14. Until the two telescopic connecting rods 17 cannot be telescoped, under the action of the tension sensor 7, the two first support seats 3 will be driven to move away from each other respectively. Therefore, when pulling the bearing steel pipe for movement test, the probability of the bearing steel pipe slipping is reduced, and finally the test process is more stable and the result is more accurate. And during the process of pulling the bearing steel pipe for movement test, the tension sensor 7 can measure the corresponding tension until the tension when the bearing steel pipe is deformed or damaged under the action of the tension, which is the anti-tension strength corresponding to the bearing steel pipe.
[0027] The above describes the basic principle, main features and advantages of the present application. Those skilled in the art of this industry should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection required by the present application is defined by the appended claims and their equivalents.
Claims
1. A bearing steel tube tensile strength testing tool, comprising a bottom plate (1), characterized in that: The upper end of the base plate (1) is fixedly connected to two upright plates (5) distributed on the left and right, and the ends of the two upright plates (5) close to each other are fixedly connected to the first electric telescopic rod (6), and the output ends of the two first electric telescopic rods (6) are fixedly connected to the telescopic connecting rod (17), and the output ends of the two telescopic connecting rods (17) are fixedly connected to the tension sensor (7). The upper end of the base plate (1) is provided with two first support seats (3) distributed on the left and right, and the two tension sensors (7) are respectively fixedly connected to the two first support seats (3). The front ends of the two first support seats (3) are fixedly connected to the second electric telescopic rod (9), and the output ends of the two second electric telescopic rods (9) are fixedly connected to the first clamping blocks (4). The two first clamping blocks (4) are respectively located at the upper ends of the two first support seats (3) and are respectively slidably connected to the two first support seats (3). The ends of the two first clamping blocks (4) away from each other are connected to the clamping members. The clamping member comprises a fixing frame (10), a connecting rod (11), a connecting seat (12), a sliding rod (16), a spring (15), a second clamping block (13) and a second supporting seat (14); the ends of the two first clamping blocks (4) which are away from each other are slidably connected to the second clamping blocks (13); the upper ends of the two second clamping blocks (13) are fixedly connected to the sliding rod (16); the circumferential surfaces of the two sliding rods (16) are slidably connected to the connecting seat (12); the circumferential surfaces of the two sliding rods (16) are sleeved with springs (15); the springs (15) One end of the spring (15) is fixedly connected to the second clamping block (13), the other end of the spring (15) is fixedly connected to the connecting seat (12), the ends of the two first support seats (3) that are away from each other are fixedly connected to the second support seat (14), the second support seat (14) is located directly below the second clamping block (13), the circumferential surfaces of the two telescopic connecting rods (17) are fixedly connected to the fixing frames (10), the interiors of the two fixing frames (10) are rotatably connected to connecting rods (11), and the two connecting rods (11) are rotatably connected to the two connecting seats (12) respectively.
2. A bearing steel tube tensile strength testing tool as claimed in claim 1, characterized in that: The upper end surfaces of the two first clamping blocks (4) are each provided with a sliding hole, the interior of the sliding hole is slidably connected with a sliding block, the sliding block is fixedly connected to the second clamping block (13), and the end surfaces of the sliding hole and the sliding block are T-shaped when viewed from above.
3. A bearing steel tube tensile strength testing tool as claimed in claim 1, characterized in that: The left end surfaces of the first pressing block (4), the first supporting seat (3), the second pressing block (13) and the second supporting seat (14) are all provided with arc-shaped holes.
4. A bearing steel tube tensile strength testing tool as claimed in claim 1, characterized in that: Each of the fixing frames (10) is rotatably connected to two connecting rods (11) distributed front and back, and the two connecting rods (11) are respectively located at the front and back ends of the arc-shaped hole.
5. A bearing steel tube tensile strength testing tool as claimed in claim 1, characterized in that: A guide rod (2) is fixedly connected between the two upright plates (5), and the guide rod (2) passes through the two first support seats (3). The two first support seats (3) are both slidably connected to the guide rod (2).
6. A bearing steel tube tensile strength testing tool as claimed in claim 1, characterized in that: The rear ends of the two first support seats (3) are fixedly connected to guide telescopic rods (8), and the output ends of the two guide telescopic rods (8) are fixedly connected to the two first pressing blocks (4) respectively.