Corrugated pipe impact resistance test device

Abstract

The utility model belongs to the field of corrugated pipe detection, particularly relates to a corrugated pipe impact resistance test device, and provides the following scheme aiming at the problems that the conventional counterweight hammer head is in threaded connection with a swing rod, the replacement of hammer heads with different weights needs a certain time, the replacement speed is relatively slow, and the test time is prolonged: the corrugated pipe impact resistance test device comprises an impact testing machine main body, a fixing rod is fixedly arranged on the inner side of the impact testing machine body, the outer wall of the fixing rod is rotationally connected with a swing rod, a connecting plate is fixedly arranged at the bottom end of the swing rod, and a clamping groove is formed in one side of the connecting plate; the device further comprises a balancing weight, a through installation groove is formed in one side of the balancing weight, clamping blocks penetrate through the two sides of the installation groove in a sliding mode, and the clamping blocks are matched with the clamping groove and the installation groove respectively. Corresponding adjustment can be carried out according to the size of the corrugated pipe, and the corrugated pipe fixing device is suitable for corrugated pipes of various sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows detection, in particular to a bellows anti-impact testing device. Background Art

[0002] Bellows mainly include metal bellows, bellows expansion joints, bellows heat exchange tubes, diaphragm boxes and metal hoses. Metal bellows are mainly used to compensate for pipeline thermal deformation, shock absorption, and absorb pipeline settlement deformation. They are widely used in petrochemical, instrumentation, aerospace, chemical, electric power, water conservancy, metallurgy and other industries. Plastic and other materials of bellows play an irreplaceable role in media transportation, power threading, machine tools, home appliances and other fields.

[0003] When testing the external impact resistance of the bellows, the pendulum is used to impact the bellows by free fall. However, the following deficiencies exist during the test:

[0004] 1. The counterweight hammer head and the pendulum rod are connected by threads. It takes a certain amount of time to replace hammer heads of different weights. The replacement speed is slow, which prolongs the test time.

[0005] Therefore, we propose a bellows impact resistance test device. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art that a counterweight hammer head and a swing rod are connected by threads, it takes a certain amount of time to replace hammer heads of different weights, the replacement speed is slow, and the test time is prolonged, and a bellows impact resistance test device is proposed.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A bellows impact resistance test device, comprising:

[0009] The impact testing machine body has a fixed rod fixedly arranged on the inner side of the impact testing machine body, a swing rod is rotatably connected to the outer wall of the fixed rod, a connecting plate is fixedly arranged on the bottom end of the swing rod, and a slot is opened on one side of the connecting plate;

[0010] It also includes a counterweight block, one side of which is provided with a penetrating installation slot, and both sides of the installation slot are slidably penetrated by clamping blocks, the clamping blocks are respectively matched with the clamping slot and the installation slot, and a first spring is fixed between the two clamping blocks;

[0011] A placing component is arranged on the bottom surface of the impact testing machine body and is used to place the corrugated pipe to be tested.

[0012] In a possible design, a plurality of positioning grooves are provided on one side of the connection plate and the counterweight block, and a plurality of positioning columns matching the positioning grooves are fixed on the other side of the counterweight block.

[0013] In a possible design, the placement assembly includes two fixing seats fixed on the bottom surface of the impact testing machine body, a lifting plate is slidably connected between the two fixing seats, a screw rod is threaded through the surface of the lifting plate, the screw rod is rotatably connected to the impact testing machine body, and a baffle is fixed on the surface of the lifting plate.

[0014] In a possible design, an adjusting rod is slidably penetrated through one side of the lifting plate, a second spring is fixed between the adjusting rod and the lifting plate, and limiting rods are provided at both ends of the adjusting rod, and the top ends of the two limiting rods are both set to be arc-shaped.

[0015] In a possible design, fixed blocks are fixed at both ends of the adjusting rod, and two limit rods slide through the two fixed blocks respectively. Limit bolts are threaded through one side of the two fixed blocks, and the two limit bolts respectively interfere with the two limit rods.

[0016] In a possible design, a groove is formed on one side of the lifting plate, and the adjusting rod passes through the groove.

[0017] In this application, during testing, the counterweight block is installed according to the testing requirements. During installation, the block is pressed together, and then the block is placed in the slot. After releasing the hand, the first spring pushes the block and the slot to connect, and then the limit bolt is turned to loosen the limit on the limit rod, and then the limit rod is moved to adjust the limit rod to the appropriate position, and then the limit bolt is turned again to limit the limit rod, and then the adjusting rod is pushed to drive the limit rod to move a certain distance, and then the bellows to be tested is placed on the lifting plate. After releasing the hand, the second spring pushes the adjusting rod to reset, and then drives the limit rod to move, and the limit rod cooperates with the baffle to clamp and limit the bellows, and then the screw is turned to drive the lifting plate to rise and fall, and then drive the bellows to the appropriate height. After the adjustment is completed, start the impact testing machine body and set the detection program, and then pull the rocker bar to drive the counterweight block and release it, the counterweight block falls to impact the bellows, and then record the data detected by the impact testing machine body.

[0018] In the utility model, the bellows impact resistance test device can quickly install and remove counterweights of different weights through the arrangement of multiple structures such as a connecting plate, a slot and a block, and can also directly add counterweights, which is simple and convenient to operate, improves replacement efficiency and shortens the test time;

[0019] In the utility model, the bellows impact resistance test device can adjust the height of the bellows according to the size of the bellows by quickly limiting the position of the bellows, so that the counterweight block is easily aligned with the bellows during impact, and is suitable for bellows of various sizes;

[0020] In the utility model, the counterweight block can be quickly installed and disassembled, which improves the replacement efficiency and shortens the test time. The counterweight block can also be adjusted accordingly according to the size of the bellows and is suitable for bellows of various sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional structural schematic diagram of a bellows impact resistance test device proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the separation structure of the connecting plate and the counterweight block of a bellows impact resistance test device proposed by the utility model;

[0023] Figure 3 This is a schematic cross-sectional structure diagram of a connecting plate and a counterweight block of a bellows impact resistance test device proposed by the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the placement components of a bellows impact resistance test device proposed by the utility model;

[0025] Figure 5 This is a schematic diagram of the component placement structure from another angle of the bellows impact resistance test device proposed by the utility model.

[0026] In the figure: 1. impact testing machine body; 2. fixing rod; 3. rocker arm; 4. connecting plate; 5. slot; 6. counterweight block; 7. mounting slot; 8. block; 9. first spring; 10. positioning slot; 11. positioning column; 12. fixing seat; 13. lifting plate; 14. screw; 15. baffle; 16. adjusting rod; 17. second spring; 18. limiting rod; 19. fixing block; 20. limiting bolt; 21. groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Example 1

[0029] Reference Figure 1-Figure 5A bellows impact test device, which is used in the field of bellows detection, includes: an impact test machine body 1, a fixed rod 2 is fixedly arranged on the inner side of the impact test machine body 1, a swing rod 3 is rotatably connected to the outer wall of the fixed rod 2, a connecting plate 4 is fixedly arranged on the bottom end of the swing rod 3, and a card slot 5 is provided on one side of the connecting plate 4; it also includes a counterweight block 6, a penetrating installation groove 7 is provided on one side of the counterweight block 6, and card blocks 8 are slidably penetrated on both sides of the installation groove 7, the card blocks 8 are respectively matched with the card slot 5 and the installation groove 7, and a first spring 9 is fixedly arranged between the two card blocks 8; a placing component, the placing component is arranged on the bottom surface of the impact test machine body 1, and is used to place the bellows to be tested.

[0030] In the above technical scheme, the model of the impact testing machine body 1 is MTSH-14, which is the prior art, so the structure and principle will not be described in detail. The clamping block 8 cooperates with the clamping slot 5 to connect the counterweight 6 and the connecting plate 4 together, and the clamping block 8 cooperates with the mounting slot 7 to connect the two counterweights 6 together. During testing, counterweights 6 of different weights can be installed or multiple counterweights 6 can be added together.

[0031] In another aspect of this embodiment, Figure 4 As shown, the placement assembly includes two fixing seats 12 fixed on the bottom surface of the impact testing machine body 1, a lifting plate 13 is slidably connected between the two fixing seats 12, a screw 14 is threaded through the surface of the lifting plate 13, the screw 14 is rotatably connected to the impact testing machine body 1, and a baffle 15 is fixed on the surface of the lifting plate 13.

[0032] In the above technical solution, the screw 14 can adjust the height of the lifting plate 13, so that the bellows and the counterweight 6 can be aligned, so that the counterweight 6 can accurately impact the bellows, and is suitable for bellows of various sizes.

[0033] Example 2

[0034] Improved on the basis of Example 1:

[0035] In another aspect of this embodiment, Figure 2 As shown, a plurality of positioning grooves 10 are provided on one side of the connecting plate 4 and the counterweight block 6 , and a plurality of positioning columns 11 matched with the positioning grooves 10 are fixed on the other side of the counterweight block 6 .

[0036] In the above technical solution, the positioning groove 10 cooperates with the positioning column 11 to improve the positioning effect of the counterweight 6, making the structure more stable.

[0037] In another aspect of this embodiment, Figure 4As shown, an adjustment rod 16 is slidably passed through one side of the lifting plate 13, a second spring 17 is fixed between the adjustment rod 16 and the lifting plate 13, and limit rods 18 are provided at both ends of the adjustment rod 16, and the top ends of the two limit rods 18 are both set to be arc-shaped.

[0038] In the above technical solution, the limiting rod 18 cooperates with the baffle 15 to limit the position of the bellows to prevent the bellows from being blown away by the impact.

[0039] In another aspect of this embodiment, Figure 5 As shown, both ends of the adjustment rod 16 are fixed with fixed blocks 19, and two limit rods 18 slide through the two fixed blocks 19 respectively. One side of the two fixed blocks 19 is threaded with limit bolts 20, and the two limit bolts 20 are respectively in conflict with the two limit rods 18.

[0040] In the above technical solution, the position of the limiting rod 18 can be adjusted according to the size of the bellows, thereby ensuring the limiting effect of the bellows.

[0041] In another aspect of this embodiment, Figure 5 As shown, a groove 21 is formed on one side of the lifting plate 13 , and the adjusting rod 16 passes through the groove 21 .

[0042] In the above technical solution, the groove 21 can facilitate the closer contact between the limiting rod 18 and the baffle 15, and can be applied to bellows of smaller sizes, thereby increasing the application range of the device.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bellows impact test device, characterized in that: include: An impact testing machine body (1), wherein a fixing rod (2) is fixedly arranged on the inner side of the impact testing machine body (1), a swing rod (3) is rotatably connected to the outer wall of the fixing rod (2), a connecting plate (4) is fixedly arranged on the bottom end of the swing rod (3), and a clamping groove (5) is provided on one side of the connecting plate (4); It also includes a counterweight block (6), one side of which is provided with a penetrating installation groove (7), and both sides of the installation groove (7) are slidably penetrated by clamping blocks (8), the clamping blocks (8) are respectively matched with the clamping groove (5) and the installation groove (7), and a first spring (9) is fixed between the two clamping blocks (8); A placing component is arranged on the bottom surface of the impact testing machine body (1) and is used to place the corrugated pipe to be tested.

2. A bellows impact resistance test device according to claim 1, characterized in that: A plurality of positioning grooves (10) are provided on one side of the connecting plate (4) and the counterweight block (6), and a plurality of positioning columns (11) matched with the positioning grooves (10) are fixed on the other side of the counterweight block (6).

3. A bellows impact resistance test device according to claim 2, characterized in that: The placement assembly comprises two fixing seats (12) fixedly mounted on the bottom surface of the impact testing machine body (1), a lifting plate (13) is slidably connected between the two fixing seats (12), a screw rod (14) is threadedly penetrated through the surface of the lifting plate (13), the screw rod (14) is rotatably connected to the impact testing machine body (1), and a baffle plate (15) is fixedly mounted on the surface of the lifting plate (13).

4. The bellows impact resistance test device according to claim 3, characterized in that: An adjusting rod (16) is slidably passed through one side of the lifting plate (13), a second spring (17) is fixedly arranged between the adjusting rod (16) and the lifting plate (13), and limiting rods (18) are arranged at both ends of the adjusting rod (16), and the top ends of the two limiting rods (18) are both arranged in an arc shape.

5. The bellows impact resistance test device according to claim 4, characterized in that: Both ends of the adjusting rod (16) are fixedly provided with fixing blocks (19), and the two limiting rods (18) slide through the two fixing blocks (19) respectively, and one side of the two fixing blocks (19) is threadedly penetrated by limiting bolts (20), and the two limiting bolts (20) respectively abut against the two limiting rods (18).

6. The bellows impact resistance test device according to claim 5, characterized in that: A groove (21) is provided on one side of the lifting plate (13), and the adjusting rod (16) passes through the groove (21).

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