Alloy steel stretching detection equipment
By introducing a buffer tank and sliding collar structure into the alloy steel tensile testing equipment, the problem of damage to the equipment caused by inertial force when alloy steel breaks is solved, the inertial force is effectively buffered, and the durability and safety of the equipment are improved.
Patent Information
- Application Number
- CN202520020861.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-06
AI Technical Summary
The inertial force generated when alloy steel breaks during a tensile test can damage the tensile testing machine, and existing equipment is unable to effectively buffer this force.
A tensile testing device for alloy steel was designed, which adopts a structure of buffer tank, sliding collar and sealing ring. The inertial force is absorbed by the steel balls in the buffer tank, and the friction is reduced by the chamber in the sliding collar and the sealing ring, so as to achieve buffering of inertial force.
It effectively reduces the damage to the equipment caused by the inertial force when alloy steel is broken, thereby improving the service life and safety of the equipment.
Smart Images
Figure CN223897196U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tensile testing equipment, specifically an alloy steel tensile testing device. Background Technology
[0002] A tensile testing machine, also known as a material tensile testing machine or universal tensile strength testing machine, is a new generation of mechanical testing equipment that integrates computer control, automatic measurement, data acquisition, screen display, and test result processing. It is mainly suitable for testing metallic and non-metallic materials. In the field of metals, to improve the metallic properties of steel, iron-carbon alloys are usually added to ordinary carbon steel by adding appropriate amounts of one or more alloying elements.
[0003] To test the tensile properties of alloy steel, a tensile testing machine is required. Due to the high hardness of alloy steel, a huge tensile force needs to be applied during the tensile test. When the alloy steel breaks, it generates a huge inertial force, which impacts the tensile testing machine and can easily damage the machine body. Utility Model Content
[0004] The purpose of this invention is to provide an alloy steel tensile testing device that can buffer the inertial force generated after the alloy steel is broken during the tensile test, thereby reducing damage to the tensile testing machine.
[0005] To achieve the above objectives, a tensile testing device for alloy steel is provided, comprising a machine body. An actuator is installed in the middle of the machine body, and the output end of the actuator extends upward through the upper part of the machine body. A lower clamp is fixedly connected to the upper end of the output end of the actuator. Two columns are symmetrically fixedly connected to the upper part of the machine body. Two guide arms are symmetrically fixedly connected to the outer ends of the lower clamp, and the columns extend through the middle of the guide arms and are slidably connected to the guide arms. A crossbeam is provided directly above the machine body, and the upper ends of the two columns are fixedly connected to the lower ends of the crossbeam. A force sensor is fixedly connected to the middle of the lower end of the crossbeam, and an upper clamp is fixedly connected to the lower end of the force sensor. The upper clamp is located at... Directly above the lower clamp; the guide arm consists of a transmission rod and a sliding collar. The transmission rod is fixedly connected to the outer end of the lower clamp, and the sliding collar is fixedly connected to the end of the transmission rod away from the lower clamp. A column passes through the middle of the sliding collar and is slidably connected to the inner wall of the sliding collar. A chamber is formed in the middle of the lower end of the sliding collar. Several springs are fixedly connected at equal intervals to the top of the chamber. A ring-shaped connecting ring is fixedly connected to the lower end of each spring, extending downwards to below the sliding collar. The connecting ring is slidably connected to the side wall of the chamber. A ring-shaped base is fixedly connected to the lower end of the connecting ring, and the connecting ring has the same shape and size as the bottom of the sliding collar. This design can buffer the inertial force generated after the alloy steel breaks during the tensile test, reducing damage to the tensile testing machine.
[0006] According to the aforementioned alloy steel tensile testing equipment, four feet are fixedly connected to the lower corners of the machine body, and rubber sleeves are fixedly connected to the bottom of the feet. The feet are used to support the equipment, and the rubber sleeves at the bottom buffer the vibration of the equipment.
[0007] According to the aforementioned alloy steel tensile testing equipment, a plurality of buffer tanks are fixedly connected at equal intervals to the upper end of the crossbeam, and each buffer tank contains a plurality of steel balls. The steel balls in the buffer tanks buffer the vibration generated by the upper clamp and the crossbeam when the alloy steel is broken.
[0008] According to the aforementioned alloy steel tensile testing equipment, a control console is installed at one end of the machine body. The control console controls the actuators and collects the detection data from the force sensor.
[0009] According to the aforementioned alloy steel tensile testing equipment, an outer sealing ring is fixedly connected to the outer end of the connecting ring, and the outer sealing ring is located at the upper end of the connecting ring. An inner sealing ring is fixedly connected to the inner wall of the connecting ring, and the inner sealing ring is located at the upper end of the connecting ring. The outer sealing ring and the inner sealing ring are slidably connected to the side wall of the chamber, respectively. The cooperation between the outer sealing ring and the inner sealing ring and the connecting ring reduces the gap between the connecting ring and the side wall of the chamber.
[0010] According to the aforementioned alloy steel tensile testing equipment, the inner wall of the sliding collar is coated with a lubricant. The lubricant inside the sliding collar reduces the friction between the sliding collar and the column, thereby reducing wear caused by the sliding collar sliding on the column.
[0011] According to the aforementioned alloy steel tensile testing equipment, the upper end of the sliding collar is provided with several equidistant vent holes, which communicate with the chamber. These vent holes allow the chamber above the connecting ring to connect with the outside, preventing excessive air pressure within the chamber from damaging the sliding collar.
[0012] According to the aforementioned alloy steel tensile testing equipment, grease is applied between the outer sealing ring, the inner sealing ring, and the sidewall of the chamber. The grease reduces friction between the outer and inner sealing rings and the chamber, and improves the sealing performance of the outer and inner sealing rings.
[0013] Compared with the prior art, the beneficial effects of this utility model are: through the cooperation of the connecting ring and the sliding collar, when the actuator continues to drive the lower chuck to descend after the alloy steel is broken, the inertial force of the lower chuck is buffered, reducing the damage caused by the inertial force to the actuator.
[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0016] Figure 1 This is a perspective view of an alloy steel tensile testing device according to the present invention;
[0017] Figure 2 This is a cross-sectional view of the guide arm of an alloy steel tensile testing device according to the present invention;
[0018] Figure 3 This is a cross-sectional view of the fit between the buffer tank and the crossbeam of an alloy steel tensile testing device according to this utility model;
[0019] Figure 4 for Figure 2 Enlarged view of point A in the middle.
[0020] In the diagram: 1. Buffer tank; 2. Column; 3. Upper chuck; 4. Guide arm; 5. Body; 6. Foot; 7. Actuator; 8. Lower chuck; 9. Force sensor; 10. Crossbeam; 11. Connecting ring; 12. Base; 13. Transmission rod; 14. Sliding collar; 15. Steel ball; 16. Spring; 17. Outer sealing ring; 18. Inner sealing ring; 19. Chamber; 20. Vent. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the 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.
[0022] Please see Figure 1 - Figure 4This utility model provides a technical solution: an alloy steel tensile testing device, including a body 5, with four feet 6 fixedly connected to the lower corners of the body 5, and rubber sleeves fixedly connected to the bottom of the feet 6. The feet 6 are used to support the device and to buffer the vibration of the device through the rubber sleeves at the bottom. An actuator 7 is installed in the middle of the body 5, and the output end of the actuator 7 extends upward through the upper end of the body 5. A lower chuck 8 is fixedly connected to the upper end of the output end of the actuator 7. Two columns 2 are symmetrically fixedly connected to the upper end of the body 5. Two guide arms 4 are symmetrically fixedly connected to the outer ends of the lower chuck 8, and the columns 2 extend through the middle of the guide arms 4 and are slidably connected to the guide arms 4. A crossbeam 10 is provided directly above the body 5, and the upper ends of the two columns 2 are fixedly connected to the lower ends of the crossbeam 10 respectively. Several buffer tanks 1 are fixedly connected at equal intervals to the upper end of the crossbeam 10. Several steel balls 15 are stored in the buffer tanks 1. The steel balls 15 in the buffer tanks 1 buffer the vibration generated by the upper chuck 3 and the crossbeam 10 when the alloy steel is broken. A force sensor 9 is fixedly connected to the lower middle part of the crossbeam 10. An upper clamp 3 is fixedly connected to the lower end of the force sensor 9, and the upper clamp 3 is located directly above the lower clamp 8. The guide arm 4 consists of a transmission rod 13 and a sliding collar 14. The transmission rod 13 is fixedly connected to the outer end of the lower clamp 8, and the sliding collar 14 is fixedly connected to the end of the transmission rod 13 away from the lower clamp 8. The column 2 passes through the middle of the sliding collar 14 and is slidably connected to the inner wall of the sliding collar 14. The inner wall of the sliding collar 14 is coated with lubricant. The lubricant in the sliding collar 14 reduces the friction between the sliding collar 14 and the column 2, and reduces the wear generated between the sliding collar 14 and the column 2 when the sliding collar 14 slides on the column 2. A chamber 19 is provided in the middle of the lower end of the sliding collar 14, and several vent holes 20 are provided at equal intervals in the upper end of the sliding collar 14. The vent holes 20 are connected to the chamber 19. The vent holes 20 allow the chamber 19 above the connecting ring 11 to be connected to the outside, so as to avoid excessive air pressure in the chamber 19, which could damage the sliding collar 14. Several springs 16 are fixedly connected at equal intervals to the top of the chamber 19. A ring-shaped connecting ring 11 is fixedly connected to the lower end of each spring 16, extending downwards to below the sliding collar 14. The connecting ring 11 is slidably connected to the side wall of the chamber 19. An outer sealing ring 17 is fixedly connected to the outer end of the connecting ring 11, located above the connecting ring 11. An inner sealing ring 18 is fixedly connected to the inner wall of the connecting ring 11, also located above the connecting ring 11. The outer sealing ring 17 and the inner sealing ring 18 are slidably connected to the side wall of the chamber 19, respectively. The cooperation between the outer sealing ring 17, the inner sealing ring 18, and the connecting ring 11 reduces the gap between the connecting ring 11 and the side wall of the chamber 19. A ring-shaped base 12 is fixedly connected to the lower end of the connecting ring 11, and the bottom shape and size of the connecting ring 11 are the same as those of the sliding collar 14. A control console is installed at one end of the body 5. The control console controls the actuator 7 and collects the detection data from the force sensor 9.Grease is applied between the outer sealing ring 17, the inner sealing ring 18 and the side wall of the chamber 19. The grease reduces the friction between the outer sealing ring 17, the inner sealing ring 18 and the chamber 19, and improves the sealing performance of the outer sealing ring 17 and the inner sealing ring 18.
[0023] Working principle: In use, the upper chuck 3 and lower chuck 8 clamp the upper and lower ends of the alloy steel respectively. The actuator 7 drives the lower chuck 8 to move downward, stretching the alloy steel. After the alloy steel is broken into two pieces, the upper chuck 3 and lower chuck 8 are subjected to inertial impact from the alloy steel. Due to inertia, the actuator 7 continues to move the lower chuck 8 downward after the alloy steel is broken. The lower chuck 8 drives the guide arm 4 to descend. During the descent, the base 12 contacts the upper end of the machine body 5 and pushes the connecting ring 11 into the sliding collar 14, so that the cavity above the connecting ring 11... The air in chamber 19 is compressed to buffer the inertial force carried by the lower chuck 8. The compressed air in chamber 19 is discharged to the outside environment through the vent 20 to prevent the sliding collar 14 from breaking due to excessive air pressure. After the actuator 7 is reset, the spring 16 pushes the connecting ring 11 downward to reset it. Outside air enters chamber 19 through the vent 20 to make the air pressure in chamber 19 the same as the outside air pressure. The impact on the upper chuck 3 is transmitted to the steel ball 15 in the buffer tank 1 through the crossbeam 10 and causes the steel ball 15 to fly up, absorbing the impact force.
[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A tensile testing device for alloy steel, comprising a machine body (5), characterized in that, An actuator (7) is installed in the middle of the body (5), and the output end of the actuator (7) extends upward through the upper end of the body (5). A lower chuck (8) is fixedly connected to the upper end of the output end of the actuator (7). Two columns (2) are symmetrically fixedly connected to the upper end of the body (5). Two guide arms (4) are symmetrically fixedly connected to the outer end of the lower chuck (8). The column (2) extends through the middle of the guide arm (4) and slides through the guide arm (4). A crossbeam (10) is provided directly above the body (5), and the upper ends of the two columns (2) are fixedly connected to the lower end of the crossbeam (10). A force sensor (9) is fixedly connected to the middle of the lower end of the crossbeam (10). An upper chuck (3) is fixedly connected to the lower end of the force sensor (9), and the upper chuck (3) is located directly above the lower chuck (8). The guide arm (4) is composed of a transmission rod (13) and a sliding collar (14). The transmission rod (13) is fixedly connected to the outer end of the lower clamp (8). The sliding collar (14) is fixedly connected to the end of the transmission rod (13) away from the lower clamp (8). The column (2) passes through the middle of the sliding collar (14) and is slidably connected to the inner wall of the sliding collar (14). A cavity (19) is opened in the middle of the lower end of the sliding collar (14). Several springs (16) are fixedly connected at equal intervals to the top of the cavity (19). A ring-shaped connecting ring (11) is fixedly connected to the lower end of the springs (16). The connecting ring (11) extends downward to the lower part of the sliding collar (14). The connecting ring (11) is slidably connected to the side wall of the cavity (19). A ring-shaped base (12) is fixedly connected to the lower end of the connecting ring (11). The bottom shape and size of the connecting ring (11) are the same as those of the sliding collar (14).
2. The alloy steel tensile testing equipment as described in claim 1, characterized in that: The lower four corners of the body (5) are respectively fixedly connected with feet (6), and the bottom of the feet (6) is fixedly connected with rubber sleeves.
3. The alloy steel tensile testing equipment as described in claim 1, characterized in that: Several buffer tanks (1) are fixedly connected at equal intervals to the upper end of the crossbeam (10), and several steel balls (15) are stored in the buffer tanks (1).
4. The alloy steel tensile testing equipment as described in claim 1, characterized in that: A control console is installed at one end of the fuselage (5).
5. The alloy steel tensile testing equipment as described in claim 1, characterized in that: An outer sealing ring (17) is fixedly connected to the outer end of the connecting ring (11), and the outer sealing ring (17) is located at the upper end of the connecting ring (11). An inner sealing ring (18) is fixedly connected to the inner wall of the connecting ring (11), and the inner sealing ring (18) is located at the upper end of the connecting ring (11). The outer sealing ring (17) and the inner sealing ring (18) are slidably connected to the side wall of the chamber (19).
6. The alloy steel tensile testing equipment as described in claim 1, characterized in that: The inner wall of the sliding collar (14) is coated with lubricant.
7. The alloy steel tensile testing equipment as described in claim 1, characterized in that: The upper end of the sliding collar (14) is provided with a plurality of vent holes (20) at equal intervals, and the vent holes (20) are connected to the chamber (19).
8. The alloy steel tensile testing equipment as described in claim 5, characterized in that: The outer sealing ring (17), the inner sealing ring (18), and the side wall of the chamber (19) are respectively coated with grease.