A chain extension measurement device and a chain extension measurement method

Abstract

The present invention relates to the technical field of chain extension measurement, and specifically discloses a chain extension measurement device and a measurement method, including a first measurement mechanism and a second measurement mechanism, wherein a displacement sensor is arranged on the first measurement mechanism, and a movable end of the displacement sensor is arranged on the second measurement mechanism, and when a chain link is deformed by tension, the deformation of the chain link is recorded by the displacement sensor; the first measurement mechanism includes a first clamping assembly and a first measuring rod, the first measuring rod abuts against the left end face of the first chain link, and the second measurement mechanism includes a second clamping assembly and a second measuring rod, the second measuring rod abuts against the right end face of the third chain link, and the first clamping assembly and the first measuring rod, the second clamping assembly and the second measuring rod form a frame structure to clamp the chain link. The present invention has a simple structure and a reasonable design, measures the extension of a chain test ring through a displacement sensor, is easy to operate, can accurately measure the deformation of the test ring, and improves the product yield.

Description

Technical Field

[0001] The invention relates to the technical field of chain extension measurement, and in particular to a chain extension measurement device and a measurement method. Background Art

[0002] Mooring chain is an important equipment for offshore mooring and positioning. Steel chain is an indispensable component in the mooring system due to its excellent load-bearing capacity, fatigue resistance and wear resistance. The length of the mooring chain is usually hundreds of meters or even thousands of meters. The strength of the chain has a direct impact on the safety of the mooring system, and its strength is directly related to the deformation, so it is necessary to measure the deformation of the test ring. Summary of the invention

[0003] The present invention aims to provide a chain extension measuring device and a measuring method, which are easy to operate and can accurately measure the deformation of a test ring.

[0004] In order to achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by the present invention is: a chain extension measuring device, including a first measuring mechanism and a second measuring mechanism, the first measuring mechanism is provided with a displacement sensor, the movable end of the displacement sensor is provided on the second measuring mechanism, when the chain link is deformed by tension, the deformation of the chain link is recorded by the displacement sensor; the first measuring mechanism includes a first clamping assembly, a first measuring rod provided at the left end of the first clamping assembly, the first measuring rod abuts against the left end face of the first chain link, the second measuring mechanism includes a second clamping assembly, a second measuring rod provided at the right end of the second clamping assembly, the second measuring rod abuts against the right end face of the third chain link, the first clamping assembly and the first measuring rod, the second clamping assembly and the second measuring rod form a frame structure to clamp the chain link.

[0005] Preferably: the first clamping assembly includes two first longitudinal beams arranged on the first chain link, which are used to support the entire frame structure, the first cross beam is arranged at the center position of the two first longitudinal beams through an angle code connection, upper and lower adjustment columns are symmetrically arranged at both ends of the first longitudinal beam, and locking rods A are respectively arranged on the two upper and lower adjustment columns located on the same side of the first chain link, which are used to adjust the locking position, and the locking rod B is connected to the locking rod A through a vertical beam, an adjustment plate A is arranged on the middle side of the locking rod A, and an adjustment plate B is arranged on the middle side of the locking rod B, the two ends of the lead screw A are respectively connected to the left shaft sleeve A and the right shaft sleeve A and are arranged on the adjustment plate A, the two ends of the lead screw B are respectively connected to the left shaft sleeve B and the right shaft sleeve B and are arranged on the adjustment plate B, the two locking rods A are moved toward each other by adjusting the lead screw A, and the two locking rods B are moved toward each other by adjusting the lead screw B to clamp the first chain link; the second clamping assembly has the same structure as the first clamping assembly, and the second clamping assembly is arranged on the third chain link.

[0006] Preferably: a fixing plate is arranged on the first crossbeam, a displacement sensor is arranged on the fixing plate, a sensor cable is arranged on the movable end of the displacement sensor, one end of the sensor cable is arranged on the movable end seat, and the movable end seat is arranged on the crossbeam of the second measuring mechanism.

[0007] Preferably: the adjustment plate A and the adjustment plate B are respectively provided with a slot, and the left shaft sleeve A, the right shaft sleeve A, the left shaft sleeve B, and the right shaft sleeve B are respectively arranged in the slot.

[0008] Preferably, the connecting hole on the corner code is configured as a waist-shaped hole.

[0009] Preferably, the lead screw A is located above the two locking rods A, and the lead screw B is located below the two locking rods B and passes through the chain ring.

[0010] A chain extension measurement method, characterized in that it comprises the following steps:

[0011] Step 1: Put the half-open ring A into the first chain ring, and put the half-open ring B into the third chain ring;

[0012] Step 2: The clamping jaw A of the tensile testing machine bears against the outer circle of the right ring crown of the half-opened collar A, and the clamping jaw B of the tensile testing machine bears against the outer circle of the left ring crown of the half-opened collar B;

[0013] Step 3: Install the first measuring mechanism on the first chain link, install the second measuring mechanism on the third chain link, the first measuring rod is blocked on the left side of the first chain link to be measured, and the second measuring rod is blocked on the right side of the third chain link; install the displacement sensor on the first measuring mechanism, and the movable end of the displacement sensor is installed on the second measuring mechanism;

[0014] Step 4: Adjust the locking position of screw A and screw B, clamp the chain link, perform a tensile load test, and record the deformation of the chain length L.

[0015] Compared with the traditional structure, the beneficial effects of the present invention are as follows: simple structure, reasonable design, measuring devices are respectively installed at both ends of the test ring, the chain is fixed and clamped by adjusting the screw, the displacement sensor is fixed on one side of the test ring, and the other side is connected to the sensor cable, when the chain ring is deformed by force, the extension of the chain test ring is measured by the displacement sensor, the operation is convenient, the deformation of the test ring can be accurately measured, and the product yield rate is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the measuring device of the present invention;

[0017] Figure 2 The measurement of the present invention is shown in FIG. Figure 1 ;

[0018] Figure 3The measurement of the present invention is shown in FIG. Figure 2 ;

[0019] In the figure: 1. first link, 2. third link, 3. first measuring mechanism, 31. screw A, 32. locking rod A, 33. upper and lower adjusting columns, 34. first longitudinal beam, 35. first cross beam, 36. locking rod B, 37. screw B, 38. adjusting plate B, 39. adjusting plate A, 310. angle code, 311. vertical beam, 4. second measuring mechanism, 5. first measuring rod, 6. second measuring rod, 7. displacement sensor, 8. fixed plate, 9. movable end seat, 10. half-open ring A, 11. half-open ring B, 12. tensile testing machine jaw A, 13. tensile testing machine jaw B. DETAILED DESCRIPTION

[0020] The present invention will be further described below.

[0021] See attached Figure 1 A chain extension measuring device includes a first measuring mechanism 3 and a second measuring mechanism 4. The first measuring mechanism 3 is provided with a displacement sensor 7, and the movable end of the displacement sensor is provided on the second measuring mechanism 4. When the chain link is deformed by tension, the deformation of the chain link is recorded by the displacement sensor 7; the first measuring mechanism 3 includes a first clamping assembly and a first measuring rod 5 provided at the left end of the first clamping assembly, the first measuring rod 5 abuts against the left end face of the first chain link 1, the second measuring mechanism 4 includes a second clamping assembly and a second measuring rod 6 provided at the right end of the second clamping assembly, the second measuring rod 6 abuts against the right end face of the third chain link 2, the first clamping assembly and the first measuring rod 5, the second clamping assembly and the second measuring rod 6 form a frame structure to clamp the chain link.

[0022] In this preferred embodiment, the first clamping assembly includes two first longitudinal beams 34 arranged on the first link 1, which are used to support the entire frame structure. The first cross beam 35 is connected and arranged at the center of the two first longitudinal beams 34 through an angle code 310. The upper and lower adjustment columns 33 are symmetrically arranged at both ends of the first longitudinal beam 34. The two upper and lower adjustment columns 33 located on the same side of the first link 1 are respectively provided with locking rods A32 for adjusting the locking position. The locking rod B36 is connected to the locking rod A32 through a vertical beam 311. The middle side of the locking rod A32 is provided with an adjustment Plate A39, an adjustment plate B38 is arranged on the side of the middle part of the locking rod B36, the two ends of the screw A31 are respectively connected to the left shaft sleeve A and the right shaft sleeve A and then arranged on the adjustment plate A39, the two ends of the screw B37 are respectively connected to the left shaft sleeve B and the right shaft sleeve B and then arranged on the adjustment plate B38, the two locking rods A32 are moved toward each other by adjusting the screw A31, and the two locking rods B36 are moved toward each other by adjusting the screw B37 to clamp the first chain link 1; the second clamping assembly has the same structure as the first clamping assembly, and the second clamping assembly is arranged on the third chain link 2.

[0023] In this preferred embodiment, a fixed plate 8 is provided on the first crossbeam 35, a displacement sensor 7 is provided on the fixed plate 8, a sensor cable is provided at the movable end of the displacement sensor, one end of the sensor cable is provided on a movable end seat 9, and the movable end seat 9 is provided on the crossbeam of the second measuring mechanism.

[0024] In the preferred embodiment, the adjustment plate A39 and the adjustment plate B38 are respectively provided with slots, and the left shaft sleeve A, the right shaft sleeve A, the left shaft sleeve B, and the right shaft sleeve B are respectively arranged in the slots.

[0025] In this preferred embodiment, the connection hole on the corner code 310 is configured as a waist-shaped hole.

[0026] In this preferred embodiment, the screw A31 is located above the two locking rods A32, and the screw B37 is located below the two locking rods B36 and passes through the chain ring.

[0027] A chain extension measurement method comprises the following steps:

[0028] Step 1: Insert the half-open ring A10 into the first chain ring 1, and insert the half-open ring B11 into the third chain ring 2;

[0029] Step 2: The clamping jaw A12 of the tensile testing machine presses against the outer circle of the right ring crown of the half-open ring A10, and the clamping jaw B13 of the tensile testing machine presses against the outer circle of the left ring crown of the half-open ring B11;

[0030] Step 3: Install the first measuring mechanism 3 on the first link 1, the second measuring mechanism 4 on the third link 2, the first measuring rod 5 blocks the left side of the first link 1 to be measured, and the second measuring rod 6 blocks the right side of the third link 2; install the displacement sensor 7 on the first measuring mechanism 3, and the movable end of the displacement sensor is installed on the second measuring mechanism 4;

[0031] Step 4: Adjust the locking position of screw A31 and screw B37, clamp the chain link, perform a tensile load test, and record the deformation of the chain length L.

[0032] In specific implementation, the first measuring mechanism 3 and the second measuring mechanism 4 are respectively installed at the two ends of the chain link to be measured, and the displacement sensor 7 can be installed on the crossbeam or measuring rod of the first measuring mechanism 3. The movable end of the displacement sensor is connected to the sensor cable, and the sensor cable is installed on the corresponding position of the second measuring mechanism 4 through the movable end seat 9. A customized screw is used, and the screw A31 and the screw B37 are detachable. Both ends are provided with positive and negative threads. The screw B37 is adjusted to make the left sleeve B and the right sleeve B move relative to each other. The shoulders of the left sleeve B and the right sleeve B are stuck in the slot of the adjustment plate B38, and the two locking rods B36 are driven to move toward each other through the adjustment plate B38 to clamp the chain link; at the same time, the screw A31 is adjusted to make the two locking rods A32 move toward each other to lock the chain link. The upper and lower symmetrical screws are used for connection and adjustment, and the force is more balanced. When the chain link is deformed by tension, the sensor is driven to record the displacement, thereby recording the deformation of the chain length L.

[0033] The above embodiments of the present invention are merely examples to clearly illustrate the present invention, but are not intended to limit the protection scope of the present invention. All equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention should be defined by the claims.

Claims

1. A chain extension measuring device, characterized in that: The invention comprises a first measuring mechanism (3) and a second measuring mechanism (4), wherein a displacement sensor (7) is arranged on the first measuring mechanism (3), and a movable end of the displacement sensor is arranged on the second measuring mechanism (4). When a chain link is deformed by tension, the deformation of the chain link is recorded by the displacement sensor (7); the first measuring mechanism (3) comprises a first clamping assembly, a first measuring rod (5) arranged at the left end of the first clamping assembly, the first measuring rod (5) abutting against the left end face of the first chain link (1); the second measuring mechanism (4) comprises a second clamping assembly, a second measuring rod (6) arranged at the right end of the second clamping assembly, the second measuring rod (6) abutting against the right end face of the third chain link (2); the first clamping assembly and the first measuring rod (5), the second clamping assembly and the second measuring rod (6) form a frame structure for clamping the chain link; the first clamping assembly comprises two first longitudinal beams (34) arranged on the first chain link (1) for supporting the entire frame structure, and a first cross beam (35) is arranged on the two first longitudinal beams through an angle bracket (310) and connected to the first longitudinal beams. The first longitudinal beam (34) is symmetrically provided with upper and lower adjustment columns (33) at both ends of the first longitudinal beam (34), and locking rods A (32) are respectively provided on the two upper and lower adjustment columns (33) located on the same side of the first chain link (1) for adjusting the locking position, and the locking rod B (36) is connected to the locking rod A (32) through the vertical beam (311), and an adjustment plate A (39) is provided on the side of the middle part of the locking rod A (32), and an adjustment plate B (38) is provided on the side of the middle part of the locking rod B (36). The lead screw A (3 The two ends of the lead screw B (37) are respectively connected to the left shaft sleeve A and the right shaft sleeve A and are then arranged on the adjustment plate A (39); the two ends of the lead screw B (37) are respectively connected to the left shaft sleeve B and the right shaft sleeve B and are then arranged on the adjustment plate B (38); the two locking rods A (32) are moved toward each other by adjusting the lead screw A (31); the two locking rods B (36) are moved toward each other by adjusting the lead screw B (37) to clamp the first chain link (1); the second clamping assembly has the same structure as the first clamping assembly, and the second clamping assembly is arranged on the third chain link (2).

2. The chain extension measuring device according to claim 1, characterized in that: A fixing plate (8) is arranged on the first crossbeam (35), a displacement sensor (7) is arranged on the fixing plate (8), a sensor cable is arranged at the movable end of the displacement sensor, one end of the sensor cable is arranged on a movable end seat (9), and the movable end seat (9) is arranged on the crossbeam of the second measuring mechanism.

3. The chain extension measuring device according to claim 1, characterized in that: The adjustment plate A (39) and the adjustment plate B (38) are respectively provided with a slot, and the left shaft sleeve A, the right shaft sleeve A, the left shaft sleeve B, and the right shaft sleeve B are respectively arranged in the slot.

4. The chain extension measuring device according to claim 1, characterized in that: The connection hole on the corner code (310) is configured as a waist-shaped hole.

5. The chain extension measuring device according to claim 1, characterized in that: The lead screw A (31) is located above the two locking rods A (32), and the lead screw B (37) is located below the two locking rods B (36) and passes through the chain ring.

6. A method for measuring the chain extension measurement device according to claim 1, characterized in that: The following steps are involved: Step 1: insert the half-open ring A (10) into the first chain ring (1), and insert the half-open ring B (11) into the third chain ring (2); Step 2: The clamping jaw A (12) of the tensile testing machine presses against the outer circle of the right ring crown of the half-opened collar A (10), and the clamping jaw B (13) of the tensile testing machine presses against the outer circle of the left ring crown of the half-opened collar B (11); Step 3: The first measuring mechanism (3) is mounted on the first chain link (1), the second measuring mechanism (4) is mounted on the third chain link (2), the first measuring rod (5) is blocked on the left side of the first chain link (1) to be measured, and the second measuring rod (6) is blocked on the right side of the third chain link (2); a displacement sensor (7) is mounted on the first measuring mechanism (3), and the movable end of the displacement sensor is mounted on the second measuring mechanism (4); Step 4: Adjust the locking positions of screw A (31) and screw B (37), clamp the chain link, perform a tensile load test, and record the deformation of the chain length L.

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