Pipe low-temperature drop hammer impact testing device

Abstract

The utility model discloses a pipe low-temperature drop hammer impact testing device, which comprises a drop hammer mechanism, a constant-temperature box and a pipe placing platform, the drop hammer mechanism is arranged above the constant-temperature box, the pipe placing platform and a pipe frame are arranged in the constant-temperature box, the drop hammer mechanism comprises a motor box, a drop hammer pipe, a hinge pipe and a drop hammer control box, a hammer head is arranged in the drop hammer pipe and connected with a motor box through an electric clamp and a hinge, the motor box and the electric clamp are connected with a drop hammer control box, a drop hammer opening is formed in the upper portion of the constant temperature box and located under the drop hammer pipe, and a pipe containing table is located under the drop hammer opening. And an observation opening is formed in the upper part of the chamber door. According to the device disclosed by the utility model, the pipe does not need to be taken out from the constant-temperature box during testing, the temperature of the pipe is ensured to be consistent with the test temperature, and the pipe is placed on the supporting block on the bearing plate for testing through the thermal insulation glove during testing, so that the accuracy of a test result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe testing, in particular to a low-temperature drop hammer impact testing device for pipes. Background Art

[0002] Plastic pipes with good low-temperature toughness have important application value in modern society. With the development of science and technology and the progress of society, people have higher and higher requirements for pipeline systems. Especially in extreme low-temperature environments, traditional plastic pipes may have problems such as brittle cracks and water leakage, causing equipment damage and production shutdowns. Therefore, developing a plastic pipe with good low-temperature toughness can effectively solve this problem and ensure the normal operation of the pipeline system.

[0003] Plastic pipes need to be thermostatically regulated at a specific temperature before drop weight impact evaluation. Generally, a thermostatic chamber is used. During the test, the pipes are taken out of the thermostatic chamber and placed on the drop weight impact equipment for testing. During this period, the temperature of the pipes will increase. The actual test temperature is not the temperature required by the test, which will have a great impact on the test results. Utility Model Content

[0004] In view of the above problems, the utility model aims to provide a low-temperature drop hammer impact testing device for pipes, so as to ensure that the pipes are tested in a constant temperature environment.

[0005] The technical problem solved by the utility model can be achieved by adopting the following technical scheme: a low-temperature drop hammer impact test device for pipes, comprising a drop hammer mechanism, a constant temperature box and a pipe placement platform, wherein the drop hammer mechanism is arranged above the constant temperature box, and a pipe placement platform and a pipe rack are arranged in the constant temperature box, the drop hammer mechanism comprises a motor box, a drop hammer tube, a hinge tube, and a drop hammer control box, the motor box is arranged above the drop hammer tube and the hinge tube, a hammer head is arranged in the drop hammer tube, the hammer head is connected to the hinge through an electric clamp, the hinge is connected to the motor box, the motor box and the electric clamp are respectively connected to the drop hammer control box, the drop hammer tube is provided with air holes, a drop hammer mouth is arranged on the upper part of the constant temperature box, the drop hammer mouth is located directly below the drop hammer tube, and the pipe placement platform is located directly below the drop hammer mouth.

[0006] The drop hammer tube is provided with an observation window, the observation window is provided with a sensor, and the drop hammer control box is supported on the hinge tube through a support arm.

[0007] The pipe placement table includes a pressure plate, a chain, a motor, a gear set and two threaded shafts. Bearings are arranged at both ends of the threaded shafts, and the bearings are arranged on a constant temperature box. A pressure plate is arranged between the two threaded shafts, and the threaded shaft is threadedly connected to the pressure plate. One of the threaded shafts is connected to the motor through a gear set and a chain.

[0008] A support block is arranged on the pressure plate, and the support block is located just below the hammer drop opening, and a V-shaped placement groove is arranged on the support block.

[0009] The hammer drop port is covered with a temperature insulation plate, slots are arranged on both sides of the temperature insulation plate, and the slots are arranged on the constant temperature box.

[0010] The hammer drop port is provided with a chuck device, and the constant temperature box is provided with an infrared sensor, which is connected with the chuck device.

[0011] A temperature probe is arranged in the constant temperature box, a fan is arranged in the constant temperature box, and a refrigerator is arranged on one side of the constant temperature box.

[0012] The front side of the thermostatic box is provided with a door, the door is connected to the side wall of the thermostatic box via a door shaft, and the door is provided with a door handle and a lock.

[0013] Two glove openings are arranged on the door, and temperature-insulating gloves are arranged on the glove openings. An observation port is arranged on the upper part of the door.

[0014] The inner wall of the thermostatic box is made of a porous air-permeable plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model device does not need to take the pipe out of the constant temperature box during testing, and the tester can put the pipe on the support block on the pressure plate for testing through the temperature-insulating gloves, ensuring that the pipe temperature is consistent with the test temperature, thereby ensuring the accuracy of the test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 This is a front view of the interior of the thermostat of the utility model;

[0019] Figure 4 This is a perspective view of the interior of the thermostat of the utility model;

[0020] Figure 5 This is a structural schematic diagram of the pipe placement platform of the utility model;

[0021] Figure 6 The right side view of the thermostat with the door open;

[0022] In the figure: 1—motor box; 2—drop hammer tube; 3—hinge tube; 4—support arm; 5—drop hammer control box; 6—observation window; 7—chuck device; 8—constant temperature box; 9—door shaft; 10—constant temperature box door; 11—side door; 12—control panel; 13—ventilation hole; 14—sensor; 15—observation window lock; 16—observation port; 17—glove port; 18—door handle; 19—constant temperature room; 20—fixing block; 21—infrared sensor; 22—gear set; 23—threaded shaft; 24—support block; 25—pressure plate; 26—insulation gloves; 27—lock; 28—rubber ring; 29—pipe rack; 30—temperature probe; 31—drop hammer port; 32—bearing port; 33—ventilation plate; 34—bearing; 35—chain; 36—gear; 37—motor; 38—refrigeration machine; 39—fan; 40—insulation board. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0024] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] Combined with Figures 1 to 6 As shown, this embodiment discloses a low-temperature drop hammer impact test device for pipes, including a drop hammer mechanism, a thermostatic box 8 and a pipe placement platform, wherein the drop hammer mechanism is arranged above the thermostatic box 8, and a pipe placement platform and a pipe rack 29 are arranged in the thermostatic box 8. The pipe placement platform is used to place the test pipes, the pipe rack 29 is used to place the pipes to be tested, and the thermostatic box 8 realizes a constant temperature adjustment function.

[0026] The drop hammer mechanism includes a motor box 1, a drop hammer tube 2, a hinge tube 3 and a drop hammer control box 5. The motor box 1 is arranged above the drop hammer tube 2 and the hinge tube 3. A hammer head is arranged in the drop hammer tube 2. The hammer head is connected to the hinge through an electric clamp. The hinge is connected to the motor box 1. The motor box 1 and the electric clamp are respectively connected to the drop hammer control box 5. The drop hammer tube 2 is provided with a vent 13. The upper part of the thermostatic box 8 is provided with a drop hammer opening 31. The drop hammer opening 31 is located directly below the drop hammer tube 31. The pipe placement platform is located directly below the drop hammer opening 31. The drop hammer tube 2 is provided with an observation window 6. The observation window 6 is provided with a sensor 14. The sensor 14 plays a role of safety protection. Only when the observation window 6 is closed and the sensor 14 is triggered, the drop hammer is allowed to fall.

[0027] The hammer drop port 31 is provided with a chuck device 7, and the constant temperature box 8 is provided with an infrared sensor 21, which is connected to the chuck device 7. The chuck device 7 is a pair of semicircular clamps, which are controlled by a motor drive.

[0028] The motor box 1 controls the hinge to realize the lifting and lowering of the hammer head. The lifting height depends on the length of the hammer drop tube 2. The hammer drop control box 5 is supported on the hinge tube 3 through a support arm. The hammer drop control box 5 can set the lifting height of the hammer head and control the hammer head to fall. After the first test is completed, the observation window 6 is opened, and the hammer head can be clamped on the electric clamp at the lower end of the hinge through the observation window 6, and then the second test is carried out. In order to prevent the hammer head from rebounding after hitting the pipe and causing a secondary impact, when the hammer head hits once, the infrared device 21 can identify and send a signal to enable the clamping device 7 to clamp the hammer head.

[0029] The hammer drop port 31 is covered with a thermal insulation board 40, and slots are arranged on both sides of the thermal insulation board 40, and the slots are arranged on the thermostatic box 8. The thermostatic adjustment process before the pipe test needs to insert the thermal insulation board 40, and the thermal insulation board 40 needs to be pulled out when the test is carried out.

[0030] A temperature probe 30 is provided in the thermostatic box 8, and a refrigerator 38 is provided on one side of the thermostatic box 8, and the refrigerator 38 is connected to the control panel 12. The temperature in the thermostatic box 8 is adjusted by the refrigerator 38, and the temperature is set by the control panel 12. A fan 39 is provided in the thermostatic box chamber 8, and the inner wall of the thermostatic box 8 adopts a porous air permeable plate 33 to ensure uniform indoor temperature.

[0031] The pipe placing platform includes a pressure plate 25, a chain 35, a motor 37, a gear set 22 and two threaded shafts 23. Bearings 34 are arranged at both ends of the threaded shaft 23. The bearings 34 are arranged on the thermostatic box 8. A pressure plate 25 is arranged between the two threaded shafts 23. The threaded shafts 23 are screwed to the pressure plate 25. One of the threaded shafts 23 is connected to the motor 37 through the gear set 22 and the chain 35. The motor 37 is connected to the control panel 12. The pipe rack 29 is located below the pressure plate 25 and is used to place the test pipe. A support block 24 is arranged on the pressure plate 25. The support block 24 is located directly below the hammer drop mouth 31. The support block 24 is provided with a V-shaped placement groove. Support blocks 24 of different sizes can be selected according to the outer diameter of the pipe. After the pipe is placed on the support block 24, the control panel 12 is operated. The control panel 12 transmits a signal to the motor 37. The motor 37 drives the pressure plate to rise and fall to ensure that the pipe is close to the hammer drop mouth 31.

[0032] The front side of the thermostatic box 8 is provided with a door 10, the door 10 is connected to the side wall of the thermostatic box 8 through a door shaft 9, the door 10 is provided with a door handle 18 and a lock 27, the door 10 is provided with two glove openings 17, the glove openings 17 are provided with temperature-insulating gloves 26, and the upper part of the door 10 is provided with an observation port 16. After the test pipe is adjusted, the tester can move the pipe on the pipe rack 29 to the support block 24 through the temperature-insulating gloves 26, and then adjust the pressure plate 25 to make the pipe close to the drop hammer opening 31, and then perform the drop hammer impact.

[0033] The utility model device does not need to take the pipe out of the constant temperature box 8 during testing. The tester can directly move the pipe on the pipe rack 29 to the support block 24 on the pressure plate 25 through the temperature-insulating gloves 26 to ensure that the pipe temperature is consistent with the test temperature, thereby ensuring the accuracy of the test results.

[0034] The above description is only a preferred implementation mode of the utility model, and does not impose any form of limitation on the utility model. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. A low-temperature drop hammer impact test device for pipes, comprising a drop hammer mechanism, a constant temperature box (8) and a pipe placement platform, characterized in that: The drop hammer mechanism is arranged above a constant temperature box (8), and a pipe placement platform and a pipe rack (29) are arranged in the constant temperature box (8). The drop hammer mechanism comprises a motor box (1), a drop hammer tube (2), a hinge tube (3) and a drop hammer control box (5). The motor box (1) is arranged above the drop hammer tube (2) and the hinge tube (3). A hammer head is arranged in the drop hammer tube (2), and the hammer head is connected to a hinge through an electric clamp. The hinge is connected to the motor box (1). The motor box (1) and the electric clamp are respectively connected to the drop hammer control box (5). An air vent (13) is arranged on the drop hammer tube (2). A drop hammer opening (31) is arranged on the upper part of the constant temperature box (8), and the drop hammer opening (31) is located directly below the drop hammer tube (2). The pipe placement platform is located directly below the drop hammer opening (31).

2. A low temperature drop hammer impact test device for pipes according to claim 1, characterized in that: The drop hammer tube (2) is provided with an observation window (6), and the observation window (6) is provided with a sensor (14). The drop hammer control box (5) is supported on the hinge tube (3) via a support arm (4).

3. A low temperature drop hammer impact test device for pipes according to claim 1, characterized in that: The pipe placement table comprises a pressure plate (25), a chain (35), a motor (37), a gear set (22) and two threaded shafts (23). Bearings (34) are arranged at both ends of the threaded shafts (23). The bearings (34) are arranged on a constant temperature box (8). A pressure plate (25) is arranged between the two threaded shafts (23). The threaded shafts (23) are threadedly connected to the pressure plate (25). One of the threaded shafts (23) is connected to the motor (37) via the gear set (22) and the chain (35).

4. A low temperature drop hammer impact test device for pipes according to claim 3, characterized in that: A support block (24) is provided on the pressure plate (25), the support block (24) is located directly below the hammer drop opening (31), and a V-shaped placement groove is provided on the support block (24).

5. The low-temperature drop hammer impact test device for pipes according to claim 1, characterized in that: The hammer drop opening (31) is covered with a temperature insulation plate (40), and slots are provided on both sides of the temperature insulation plate (40), and the slots are provided on the constant temperature box (8).

6. A low temperature drop hammer impact test device for pipes according to claim 1, characterized in that: The hammer drop opening (31) is provided with a chuck device (7), and an infrared sensor (21) is provided in the constant temperature box (8), and the infrared sensor (21) is connected to the chuck device (7).

7. The low-temperature drop hammer impact test device for pipes according to claim 1, characterized in that: A temperature probe (30) is arranged in the thermostatic box (8), a fan (39) is arranged in the thermostatic box (8), and a refrigerator (38) is arranged on one side of the thermostatic box (8).

8. The low-temperature drop hammer impact test device for pipes according to claim 1, characterized in that: The front side of the thermostatic box (8) is provided with a door (10), the door (10) is connected to the side wall of the thermostatic box (8) via a door shaft (9), and the door (10) is provided with a door handle (18) and a lock (27).

9. A low temperature drop weight impact testing device for pipes according to claim 8, characterized in that: Two glove openings (17) are provided on the chamber door (10), and temperature-insulating gloves (26) are provided on the glove openings (17). An observation port (16) is provided on the upper portion of the chamber door (10).

10. The low-temperature drop hammer impact test device for pipes according to claim 1, characterized in that: The inner wall of the thermostatic box (8) is made of a porous air-permeable plate (33).

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