Low-temperature impact testing machine with protection mechanism for forge piece

Abstract

The utility model discloses a low-temperature impact testing machine with a protection mechanism for forgings, which relates to the technical field of impact testing machines and comprises an impact testing machine, an impact testing rack is fixedly mounted at the top end of one side of the impact testing machine, an impact testing stand is fixedly mounted on the inner wall of one side of the impact testing rack, and the impact testing stand is fixedly mounted on the inner wall of the other side of the impact testing rack. And a fixed motor is fixedly mounted on the outer wall of the top end of one side of the impact test rack. A forge piece needing to be detected is directly placed on the impact test bench, the telescopic adjusting position of a telescopic extrusion rod is directly controlled through a fixed motor, so that the distance between sliding extrusion discs on the two sides is controlled, and the forge piece is fastened through limiting grooves in the sliding extrusion discs on the two sides; the vertical motor controls the telescopic adjustment position height of the vertical impact rod, the impact contactor at the bottom end of the connecting disc is used for achieving impact test on the forge piece, the effect of multiple times of impact can be achieved, and impact test operation can be achieved by setting different impact strengths.

Description

Technical Field

[0001] This utility model relates to the field of impact testing machine technology, and in particular to a low-temperature impact testing machine for forgings with a protective mechanism. Background Technology

[0002] Forgings are characterized by high strength and high toughness (room temperature toughness), and are commonly used in the plunger pump head body of complete fracturing machines. Due to differences in component ratios and heat treatment methods, the strength, toughness, and grain size of this material vary significantly. Generally, the heat treatment method for forgings involves quenching followed by high-temperature tempering. Specifically, quenching is performed at 850–890℃, with a holding time calculated at 0.9 h / 100 mm. Tempering involves heating to 560–660℃, holding at that temperature for 2.5 h / 100 mm, and then air-cooling after removal from the furnace. Tests showed that the low-temperature impact toughness of forgings treated with this method at -29℃ could only reach 30-50J, with coarse grains (usually grade 4 or 4.5) or mixed grains (usually 50% grade 3.5 + 50% grade 5). Since the low-temperature impact toughness and grain size did not meet the requirements of the special technical conditions (grain size ≥ grade 6), the service life of the forgings was affected. We need to conduct impact tests on the forgings and test the quality of the testing equipment. Therefore, we designed a low-temperature impact testing machine for forgings with a protective mechanism. Utility Model Content

[0003] The purpose of this invention is to provide a low-temperature impact testing machine with a protective mechanism for forgings.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a low-temperature impact testing machine for forgings with a protective mechanism, comprising an impact testing machine, an impact testing frame fixedly installed on one side top of the impact testing machine, an impact testing platform fixedly installed on one side inner wall of the impact testing frame, a fixed motor fixedly installed on one side top outer wall of the impact testing frame, a telescopic extrusion rod telescopically connected to one side top of the fixed motor, a sliding extrusion disc fixedly connected to one side top of the telescopic extrusion rod, a limit groove formed on one side surface of the sliding extrusion disc, a vertical motor fixedly installed on one side top of the impact testing frame, a vertical impact rod telescopically connected to one side bottom of the vertical motor, a connecting plate fixedly connected to one side bottom of the vertical impact rod, a connecting plate fixedly installed at the center of one side bottom of the connecting plate, an impact detector fixedly connected to one side bottom of the connecting plate, and an impact contactor fixedly connected to the bottom surface of the impact detector.

[0005] Preferably, the telescopic extrusion rod penetrates one side surface of the impact test frame, the sliding extrusion disc is located on the top surface of the impact test bench, the sliding extrusion disc and the impact test bench are slidably connected, the fixed motor and the telescopic extrusion rod are driven connected, the vertical motor and the vertical impact rod are driven connected, the connecting plate is located directly above the impact test bench, and the vertical impact rod penetrates the top surface of the impact test frame.

[0006] Preferably, a retractable connecting column is fixedly connected to one bottom surface of the connecting plate, a telescopic connecting column is movably installed inside one bottom surface of the retractable connecting column, a buffer spring is fixedly connected to one bottom surface of the retractable connecting column, a connecting base block is fixedly connected to one bottom surface of the buffer spring, and a side protective frame is fixedly installed on one side of the connecting base block.

[0007] Preferably, the side protection frame is located on one side of the impact contactor, the telescopic connecting post and the retractable connecting post are connected by a movable sleeve, the telescopic connecting post is located inside the buffer spring, and the telescopic connecting post and the buffer spring are movably sleeved.

[0008] Preferably, a limiting post is fixedly connected to the top of one inner wall of the impact test frame, a limiting base is fixedly connected to the bottom of one side of the limiting post, a main controller is fixedly installed on one outer wall of the impact test frame, an electrical box is fixedly connected to the back of the main controller, a data display is fixedly installed on the top of the front of the main controller, and a control setting panel is provided at the bottom of the front of the main controller.

[0009] Preferably, the limiting post extends through the interior of the connecting plate, the connection between the limiting post and the connecting plate is a sliding connection, the connection between the vertical motor and the main controller is a power control connection, and the connection between the fixed motor and the main controller is a power control connection.

[0010] Compared with related technologies, the low-temperature impact testing machine for forgings with a protective mechanism provided by this utility model has the following advantages:

[0011] Beneficial effects:

[0012] 1. This utility model provides a low-temperature impact testing machine for forgings with a protective mechanism. The forging to be tested is placed directly on the impact testing platform. The telescopic extrusion rod is directly controlled by a fixed motor to adjust its position, thereby controlling the distance between the two sliding extrusion plates. The limiting grooves on the two sliding extrusion plates are used to fasten the forging. The vertical impact rod is controlled by a vertical motor to adjust its height. The impact contactor at the bottom of the connecting plate is used to perform the impact test on the forging. Multiple impacts can be achieved, and different impact forces can be set to perform the impact test.

[0013] 2. This utility model provides a low-temperature impact testing machine for forgings with a protective mechanism. When impact testing is performed on the forgings by setting an impact contactor, the side protective frame assists in contacting the surface of the impact test bench. At this time, the telescopic connecting column automatically retracts into the interior of the retractable connecting column, and the buffer spring realizes the recovery and compression operation, which plays a certain role in buffer protection. The friction between the retractable connecting column and the telescopic connecting column cancels the elastic potential energy of the buffer spring. The side protective frame protects the impact contactor, improves the overall service life of the device, and increases the safety of the device. The limit column limits the position of the connecting plate to ensure the impact stability between the impact contactor and the forging. The main controller directly controls the vertical motor and the fixed motor, improving the ease of use of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the overall rear side view of the device of this utility model;

[0016] Figure 3 This is a partial side view structural schematic diagram of the impact device of this utility model;

[0017] Figure 4 This utility model Figure 3 A magnified structural diagram at point A.

[0018] The following are the labeling elements in the diagram: 1. Impact testing machine; 2. Impact testing frame; 3. Impact testing platform; 4. Fixed motor; 5. Telescopic extrusion rod; 6. Sliding extrusion disc; 7. Limiting groove; 8. Vertical motor; 9. Vertical impact rod; 10. Connecting disc; 11. Connecting plate; 12. Impact detector; 13. Impact contactor; 14. Retractable connecting column; 15. Telescopic connecting column; 16. Buffer spring; 17. Connecting base block; 18. Side protection frame; 19. Limiting column; 20. Limiting chassis; 21. Main controller; 22. Power box; 23. Data display; 24. Control setting panel. Detailed Implementation

[0019] Example 1:

[0020] Please see Figure 1-4 This utility model provides a technical solution: a low-temperature impact testing machine for forgings with a protective mechanism, comprising an impact testing machine 1, an impact testing frame 2 fixedly installed on one side of the impact testing machine 1, an impact testing platform 3 fixedly installed on one side of the inner wall of the impact testing frame 2, a fixed motor 4 fixedly installed on the outer wall of one side of the impact testing frame 2, a telescopic extrusion rod 5 telescopically connected to one side of the fixed motor 4, a sliding extrusion disc 6 fixedly connected to one side of the telescopic extrusion rod 5, a limit groove 7 formed on one side surface of the sliding extrusion disc 6, a vertical motor 8 fixedly installed on one side of the impact testing frame 2, and a vertical impact rod 9 telescopically connected to one side bottom of the vertical motor 8, for vertical impact testing. A connecting plate 10 is fixedly connected to one bottom end of rod 9. A connecting plate 11 is fixedly installed in the center of one bottom end of connecting plate 10. An impact detector 12 is fixedly connected to one bottom end of connecting plate 11. An impact contactor 13 is fixedly connected to the bottom surface of impact detector 12. Telescopic extrusion rod 5 penetrates one side surface of impact test frame 2. Sliding extrusion plate 6 is located on the top surface of impact test bench 3. The connection between sliding extrusion plate 6 and impact test bench 3 is a sliding connection. The connection between fixed motor 4 and telescopic extrusion rod 5 is a driving connection. The connection between vertical motor 8 and vertical impact rod 9 is a driving connection. Connecting plate 10 is located directly above impact test bench 3. Vertical impact rod 9 penetrates the top surface of impact test frame 2.

[0021] In the implementation plan, the forging to be tested is placed directly on the impact test bench 3. The telescopic extrusion rod 5 is directly controlled by the fixed motor 4 to adjust its position, thereby controlling the distance between the two sliding extrusion discs 6. The limiting grooves 7 on the two sliding extrusion discs 6 are used to fasten the forging. The telescopic position of the vertical impact rod 9 is adjusted by the vertical motor 8. The impact contactor 13 at the bottom of the connecting disc 10 is used to perform the impact test on the forging. This can achieve the effect of multiple impacts, and different impact forces can also be set to perform the impact test.

[0022] Example 2:

[0023] Please see Figure 1-4This utility model provides a technical solution: a low-temperature impact testing machine for forgings with a protective mechanism, comprising a retractable connecting column 14 fixedly connected to one bottom surface of a connecting plate 11, a telescopic connecting column 15 movably installed inside one bottom surface of the retractable connecting column 14, a buffer spring 16 fixedly connected to one bottom surface of the retractable connecting column 14, a connecting base block 17 fixedly connected to one bottom surface of the buffer spring 16, a side protective frame 18 fixedly installed on one side of the connecting base block 17, the side protective frame 18 being located on one side of an impact contactor 13, the telescopic connecting column 15 and the retractable connecting column 14 being connected by a movable sleeve, the telescopic connecting column 15 being located inside the buffer spring 16, and the telescopic connecting column 15 and the retractable connecting column 14 being connected by a movable sleeve. The buffer spring 16 is movably sleeved. A limit post 19 is fixedly connected to the top of the inner wall of one side of the impact test frame 2. A limit base 20 is fixedly connected to the bottom of one side of the limit post 19. A main controller 21 is fixedly installed on the outer wall of one side of the impact test frame 2. A power box 22 is fixedly connected to the back of the main controller 21. A data display 23 is fixedly installed on the top of the front of the main controller 21. A control setting panel 24 is provided at the bottom of the front of the main controller 21. The limit post 19 penetrates the interior of the connecting plate 10. The connection between the limit post 19 and the connecting plate 10 is a sliding connection. The connection between the vertical motor 8 and the main controller 21 is a power control connection. The connection between the fixed motor 4 and the main controller 21 is a power control connection.

[0024] In the implementation plan, when impact testing is performed on the forging by setting the impact contactor 13, the side protective frame 18 is used to assist in contacting the surface of the impact test bench 3. At this time, the telescopic connecting column 15 will automatically retract into the interior of the retractable connecting column 14, and the buffer spring 16 will perform the recovery and compression operation, which will play a certain buffering and protective role. The friction between the retractable connecting column 14 and the telescopic connecting column 15 will offset the elastic potential energy of the buffer spring 16. The protection of the impact contactor 13 by the side protective frame 18 will improve the overall service life of the device and increase the safety of the device. The limiting column 19 limits the position of the connecting plate 10 to ensure the impact stability between the impact contactor 13 and the forging. The main controller 21 directly controls the use of the vertical motor 8 and the fixed motor 4, improving the ease of use of the device.

[0025] Working principle:

[0026] The forging to be tested is placed directly on the impact test bench 3. The telescopic extrusion rod 5 is directly controlled by the fixed motor 4 to adjust its telescopic position, thereby controlling the distance between the two sliding extrusion plates 6. The limiting grooves 7 on the two sliding extrusion plates 6 are used to fasten the forging. The telescopic position height of the vertical impact rod 9 is controlled by the vertical motor 8. The impact contactor 13 at the bottom of the connecting plate 10 is used to perform the impact test on the forging. Multiple impacts can be achieved, and different impact forces can be set to perform the impact test.

[0027] When impact testing is performed on the forging by setting the impact contactor 13, the side protective frame 18 assists in contacting the surface of the impact test bench 3. At this time, the telescopic connecting column 15 automatically retracts into the interior of the retractable connecting column 14, and the buffer spring 16 realizes the recovery and compression operation, which plays a certain role in buffer protection. The friction between the retractable connecting column 14 and the telescopic connecting column 15 cancels the elastic potential energy of the buffer spring 16. The side protective frame 18 protects the impact contactor 13, improves the overall service life of the device, and increases the safety of the device. The limiting column 19 limits the position of the connecting plate 10 to ensure the impact stability between the impact contactor 13 and the forging. The main controller 21 directly controls the use of the vertical motor 8 and the fixed motor 4, improving the ease of use of the device.

Claims

1. A low-temperature impact testing machine with a protection mechanism for forgings, comprising an impact testing machine (1), and an impact testing frame (2) fixedly installed at one side top end of the impact testing machine (1), characterized in that: The side inner wall of the impact test stand (2) is fixedly installed with an impact test bench (3), the side top outer wall of the impact test stand (2) is fixedly installed with a fixed motor (4), one side top of the fixed motor (4) is telescopically connected with a telescopic extrusion rod (5), one side top of the telescopic extrusion rod (5) is fixedly connected with a sliding extrusion disc (6), the side surface of the sliding extrusion disc (6) is provided with a limiting groove (7), the side top of the impact test stand (2) is fixedly installed with a vertical motor (8), one side bottom of the vertical motor (8) is telescopically connected with a vertical impact rod (9), one side bottom of the vertical impact rod (9) is fixedly connected with a connecting disc (10), the side bottom of the connecting disc (10) is fixedly installed with a connecting plate (11), one side bottom of the connecting plate (11) is fixedly connected with an impact detector (12), the bottom surface of the impact detector (12) is fixedly connected with an impact contactor (13).

2. The low-temperature impact testing machine with a protection mechanism for a forged product according to claim 1, characterized by, The telescopic extrusion rod (5) penetrates through the side surface of the impact test stand (2), the sliding extrusion disc (6) is located on the top surface of the impact test bench (3), the connecting relationship between the sliding extrusion disc (6) and the impact test bench (3) is sliding connection, the connecting relationship between the fixed motor (4) and the telescopic extrusion rod (5) is driving connection, the connecting relationship between the vertical motor (8) and the vertical impact rod (9) is driving connection, the connecting disc (10) is located directly above the impact test bench (3), and the vertical impact rod (9) penetrates through the top surface of the impact test stand (2).

3. The low-temperature impact testing machine with a protection mechanism for a forged product according to claim 1, characterized by, The side bottom surface of the connecting plate (11) is fixedly connected with a retractable connecting column (14), the retractable connecting column (14) is movably installed with a telescopic connecting column (15) in the side bottom, the side bottom of the retractable connecting column (14) is fixedly connected with a buffer spring (16), the side bottom of the buffer spring (16) is fixedly connected with a connecting bottom block (17), and the side of the connecting bottom block (17) is fixedly installed with a side protection frame (18).

4. The low-temperature impact testing machine with a protection mechanism for a forged product according to claim 3, characterized by The side protection frame (18) is located on one side of the impact contactor (13), the connecting relationship between the telescopic connecting column (15) and the retractable connecting column (14) is movable sleeving, the telescopic connecting column (15) is located in the buffer spring (16), and the telescopic connecting column (15) and the buffer spring (16) are movably sleeved.

5. The low-temperature impact testing machine with a protection mechanism for a forged product according to claim 1, wherein The side inner wall top of the impact test stand (2) is fixedly connected with a limiting column (19), the side bottom of the limiting column (19) is fixedly connected with a limiting bottom disc (20), the side outer wall of the impact test stand (2) is fixedly installed with a main control unit (21), the back surface of the main control unit (21) is fixedly connected with a power box (22), the front top of the main control unit (21) is fixedly installed with a data display (23), and the front bottom of the main control unit (21) is provided with a control setting disc (24).

6. The low-temperature impact testing machine with a protection mechanism for a forged product according to claim 5, wherein The limiting column (19) penetrates the inside of the connecting disc (10), the connecting relationship between the limiting column (19) and the connecting disc (10) is sliding connection, the connecting relationship between the vertical motor (8) and the main control unit (21) is power control connection, and the connecting relationship between the fixed motor (4) and the main control unit (21) is power control connection.

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