Novel on-line pipeline circumferential positioning ovality measurer

Abstract

The utility model discloses a novel on-line pipeline circumferential positioning ovality measurer, which relates to the technical field of pipeline measurement and comprises an outer diameter caliper gauge, one side of the outer diameter caliper gauge is fixedly connected with a connecting column, the connecting column is fixedly connected to a ball sliding seat of a screw rod in a radial moving assembly, and the ball sliding seat is fixedly connected with a screw rod. A circumferential moving assembly with an arc sliding block is arranged on one side of the radial moving assembly, the radial moving assembly is fixedly connected to the side wall of the arc sliding block, and the radial moving assembly is used for driving the outer diameter caliper gauge to be close to a to-be-measured pipe in the circle center of the circumferential moving assembly. According to the utility model, by arranging the radial movement assembly and the circumferential movement assembly, a worker can fix the novel measurer on the outer wall of a pipeline to be measured through the fixing ring, circumferential movement and positioning of the outer diameter caliper gauge can be realized by sliding the arc sliding block interface, and radial movement of the outer diameter caliper gauge can be realized by rotating the rotating handle; therefore, skewing of the caliper gauge in the measuring process is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline measurement, in particular to a novel online pipeline circumferential positioning ovality measuring device. Background Art

[0002] Ovality is also called out-of-roundness. The measurement of ovality, according to its definition, is the difference between the maximum and minimum diameters on the cross-section of the cylindrical surface. Therefore, it basically belongs to the diameter method. Any method of measuring the diameter can be used to measure ovality, that is, after measuring the maximum and minimum diameters respectively, the difference is calculated, which is the value of ovality.

[0003] The outside diameter caliper gauge has become one of the important instruments for measuring the ovality of pipes due to its simplicity and convenience. However, in the process of using the outside diameter caliper gauge to measure the ovality of pipes, since the staff needs to stand on one side and hold the upper part of the caliper gauge during the measurement, it is easy to cause the measuring claws of the outside diameter caliper gauge to be skewed during the measurement, which may lead to poor accuracy of the measured diameter data. In addition, measuring the ovality of the pipe requires measuring multiple diameters, and the staff needs to stand or squat and adjust their position, which is rather troublesome. Therefore, we need a new type of measuring caliper gauge that can solve the problem of caliper gauge skew and achieve circumferential positioning. Utility Model Content

[0004] The utility model aims to provide a novel online pipeline circumferential positioning ovality measuring device in order to solve the problems that the existing outer diameter caliper gauge is easily skewed due to operation problems during the measurement process and cannot achieve circumferential positioning.

[0005] To achieve the above object, the utility model provides the following technical solutions: a novel online pipeline circumferential positioning ovality measuring device, comprising an outer diameter caliper, one side of the outer diameter caliper is fixedly connected with a connecting column, and the connecting column is fixedly connected to the ball sliding seat of the screw rod in the radial moving assembly;

[0006] A circumferential moving assembly having an arc slider is provided on one side of the radial moving assembly, and the radial moving assembly is fixedly connected to the side wall of the arc slider;

[0007] The radial moving assembly is used to drive the outer diameter caliper to approach the pipe to be measured at the center of the circumferential moving assembly circle, and the circumferential moving assembly is used to adjust the circumferential position of the outer diameter caliper.

[0008] As a further solution of the utility model: the radial movement assembly further includes a rectangular block, a rectangular cavity, a connecting rod, and a rotating handle;

[0009] The screw rod rotates in the inner cavity of the rectangular cavity, the rectangular cavity is opened inside the rectangular block, the rectangular block is fixedly connected to the side wall of the arc slider, the connecting rod is fixedly connected to one end of the screw rod, one end of the connecting rod passes through the outside of the rectangular block, and the turning handle is fixedly connected to the outer end of the connecting rod.

[0010] As a further solution of the utility model: the upper side wall of the rectangular block is provided with a through hole for the connecting rod to pass through and rotate.

[0011] As a further solution of the utility model: the circumferential moving assembly further includes an arc slide rail, a connecting ring, a fixing ring, a second thread groove, a second fixing bolt, a first thread groove, and a first fixing bolt;

[0012] The upper and lower ends of the arc slider close to the arc slide rail are rotatably connected with rolling pulleys, the rolling pulleys are in contact with the inner and outer walls of the arc slide rail, the connecting ring is fixedly connected to the side of the arc slide rail away from the arc slider, and the fixing ring is fixedly connected to the side of the connecting ring away from the arc slide rail;

[0013] The second thread grooves are opened at two ends of the arc slider away from the arc slide rail, the second thread grooves are threadedly connected with the second fixing bolts, several first thread grooves are evenly opened on the arc-shaped outer wall of the fixing ring, and the inner cavity of the first thread grooves is threadedly connected with the first fixing bolts.

[0014] As a further solution of the utility model: the second thread groove is located in the interval between two rollers on the same side of the arc slider, so the second fixing bolt in the second thread groove does not interfere with the rollers on both sides.

[0015] As a further solution of the utility model: the cross-sectional width of the arc slider is smaller than the cross-sectional width of the fixing ring.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] By setting up a radial moving component and a circumferential moving component, the staff can fix the new measuring instrument on the outer wall of the pipe to be measured through a fixing ring, realize the circumferential movement and positioning of the outside diameter caliper gauge by sliding the arc slider interface, and realize the radial movement of the outside diameter caliper gauge by rotating the turning handle, thereby preventing the caliper gauge from being skewed during the measurement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 The enlarged view of point A in the middle;

[0020] Figure 3 It is a cross-sectional view of the first thread groove and the second thread groove of the utility model;

[0021] Figure 4 For this utility model Figure 3 The enlarged view of point B in the middle;

[0022] Figure 5 For this utility model Figure 3 Enlarged view of point C in the middle.

[0023] In the figure: 1. fixing ring; 2. connecting ring; 3. arc slide rail; 4. arc slider; 5. rectangular block; 6. outer diameter caliper; 7. rectangular cavity; 8. screw rod; 9. connecting rod; 10. turning handle; 11. first thread groove; 12. first fixing bolt; 13. second thread groove; 14. second fixing bolt; 15. connecting column. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 5 In the embodiment of the utility model, a novel online pipeline circumferential positioning ovality measuring device includes an outer diameter caliper 6, one side of the outer diameter caliper 6 is fixedly connected with a connecting column 15, and the connecting column 15 is fixedly connected to the ball sliding seat of the screw rod 8 in the radial moving assembly;

[0026] A circumferential moving component having an arc slider 4 is provided on one side of the radial moving component, and the radial moving component is fixedly connected to the side wall of the arc slider 4;

[0027] The radial moving component is used to drive the outer diameter calliper 6 to approach the pipe to be measured at the center of the circumferential moving component circle, and the circumferential moving component is used to adjust the circumferential position of the outer diameter calliper 6.

[0028] In this embodiment: it should be noted that in the initial state, the outer diameter caliper 6 is located at the upper end of the screw rod, and the arc slider 4 is fixed to the side wall of the arc slide rail 3 through the second thread groove 13 and the second fixing bolt 14;

[0029] When the staff uses the new measuring device to measure the ovality of the online pipeline, the device is first put on the pipeline, and then the first fixing bolt 12 is rotated, and the first fixing bolt 12 is rotated and moved downward along the first thread groove 11 until it contacts the outer wall of the pipeline to be measured, thereby achieving the fixation of the new measuring device;

[0030] After that, the staff rotates the second fixing bolt 14, and the second fixing bolt 14 moves outward along the second thread groove 13, thereby leaving the side wall of the arc slide rail 3 that is in conflict, thereby releasing the fixation of the arc slider 4, and then sliding the arc slider 4 to a point on the arc slide rail 3, and rotating it again, the second fixing bolt 14 fixes the arc slider 4;

[0031] Then, the handle 10 is rotated, and the handle 10 drives the screw 8 to rotate through the connecting rod 9, thereby driving the radial moving component on the screw sliding seat to move downward, and constantly approaching the pipe to be measured at the center of the lower circle. When it is about to touch the pipe to be measured, the measuring claws of the outer diameter caliper 6 are opened, and the handle 10 is continuously rotated. At this time, the measuring claws of the outer diameter caliper 6 are continuously moved downward to contact the two ends of the outer wall of the pipe to be measured. At this time, the display table of the outer diameter caliper can be observed to obtain the size of the diameter at this point;

[0032] After that, release the arc slider and repeat the above operation to measure multiple groups of diameters at multiple locations. Then, subtract the minimum diameter from the maximum diameter to get a relatively accurate ovality value.

[0033] Please refer to Figures 1 to 3 , the radial moving assembly also includes a rectangular block 5, a rectangular cavity 7, a connecting rod 9, and a rotating handle 10;

[0034] The screw rod 8 rotates in the inner cavity of the rectangular cavity 7, the rectangular cavity 7 is opened inside the rectangular block 5, the rectangular block 5 is fixedly connected to the side wall of the arc slider 4, the connecting rod 9 is fixedly connected to one end of the screw rod 8, one end of the connecting rod 9 passes through the outside of the rectangular block 5, and the turning handle 10 is fixedly connected to the outer end of the connecting rod 9.

[0035] In this embodiment: the connecting rod 9 and the rotating handle 10 are used to indirectly control the rotation of the screw rod 8;

[0036] The screw rod 8 drives the screw rod sliding seat to move, thereby driving the outer diameter caliper 6 to move radially.

[0037] Please refer to Figure 3 The upper side wall of the rectangular block 5 is provided with a through hole for the connecting rod 9 to pass through and rotate.

[0038] In this embodiment: the through hole structure is used to connect the connecting rod 9 and the screw rod in the rectangular cavity 7.

[0039] Please refer to Figures 3 to 5The circumferential moving assembly further includes an arc slide rail 3, a connecting ring 2, a fixing ring 1, a second thread groove 13, a second fixing bolt 14, a first thread groove 11, and a first fixing bolt 12;

[0040] The arc slider 4 is rotatably connected to the upper and lower ends of the arc slide rail 3, and the rolling pulleys are in contact with the inner and outer walls of the arc slide rail 3. The connecting ring 2 is fixedly connected to the side of the arc slide rail 3 away from the arc slider 4, and the fixing ring 1 is fixedly connected to the side of the connecting ring 2 away from the arc slide rail 3.

[0041] The second thread grooves 13 are formed at both ends of the arc slider 4 away from the arc slide rail 3, and the second thread grooves 13 are threadedly connected with second fixing bolts 14. Several first thread grooves 11 are evenly formed on the arc-shaped outer wall of the fixing ring 1, and the inner cavity of the first thread grooves 11 is threadedly connected with first fixing bolts 12.

[0042] In this embodiment: the arc slide rail 3 and the arc slider 4 cooperate to enable the outer diameter caliper 6 on the radial moving component to adjust the circumferential position;

[0043] The fixing ring 1, the first thread groove 11 and the first fixing bolt 12 are used to fix the novel measuring device on the outer wall of the pipeline to be measured;

[0044] The second thread groove 13 and the second fixing bolt 14 are used to fix the arc slider 4;

[0045] The connecting ring 2 is used to separate the fixing ring 1 and the circular arc slide rail 3, so as to prevent the circular arc slide block 4 from colliding and interfering with the fixing ring 1 during the sliding process.

[0046] Please refer to Figures 1 to 4 The second thread groove 13 is located in the interval between two rollers on the same side of the arc slider 4, so the second fixing bolt 14 in the second thread groove 13 does not interfere with the rollers on both sides.

[0047] In this embodiment: this structure is used to prevent the second thread groove 13 and the pulley of the arc slider 4 from interfering with each other.

[0048] Please refer to Figure 1 , the cross-sectional width of the arc slider 4 is smaller than the cross-sectional width of the fixing ring 1 .

[0049] In this embodiment, the structure is used to prevent the arc slider 4 from contacting and scratching the pipeline to be tested within the fixed ring 1 during the sliding process.

[0050] What is described above 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 novel online pipeline circumferential positioning ovality measuring device, comprising an outer diameter caliper (6), characterized in that: A connecting column (15) is fixedly connected to one side of the outer diameter caliper (6), and the connecting column (15) is fixedly connected to the ball sliding seat of the screw rod (8) in the radial moving assembly; A circumferential moving component having an arc slider (4) is provided on one side of the radial moving component, and the radial moving component is fixedly connected to the side wall of the arc slider (4); The radial moving component is used to drive the outer diameter caliper (6) to approach the pipe to be measured at the center of the circumferential moving component circle, and the circumferential moving component is used to adjust the circumferential position of the outer diameter caliper (6).

2. A novel online pipeline circumferential positioning ovality measuring device according to claim 1, characterized in that: The radial movement assembly further comprises a rectangular block (5), a rectangular cavity (7), a connecting rod (9), and a rotating handle (10); The screw rod (8) rotates in the inner cavity of the rectangular cavity (7), the rectangular cavity (7) is opened inside the rectangular block (5), the rectangular block (5) is fixedly connected to the side wall of the arc slider (4), the connecting rod (9) is fixedly connected to one end of the screw rod (8), one end of the connecting rod (9) passes through the outside of the rectangular block (5), and the turning handle (10) is fixedly connected to the outer end of the connecting rod (9).

3. A novel online pipeline circumferential positioning ovality measuring device according to claim 2, characterized in that: The upper side wall of the rectangular block (5) is provided with a through hole for the connecting rod (9) to pass through and rotate.

4. The novel online pipeline circumferential positioning ovality measuring device according to claim 1 is characterized in that: The circumferential movement assembly further comprises an arc slide rail (3), a connecting ring (2), a fixing ring (1), a second thread groove (13), a second fixing bolt (14), a first thread groove (11), and a first fixing bolt (12); The arc slider (4) is rotatably connected to rolling pulleys at both the upper and lower ends of a side close to the arc slide rail (3), and the rolling pulleys are in contact with the inner and outer walls of the arc slide rail (3); the connecting ring (2) is fixedly connected to a side of the arc slide rail (3) away from the arc slider (4); and the fixing ring (1) is fixedly connected to a side of the connecting ring (2) away from the arc slide rail (3); The second thread groove (13) is formed at two ends of the arc slider (4) away from the arc slide rail (3), and the second fixing bolt (14) is threadedly connected in the second thread groove (13). A plurality of the first thread grooves (11) are evenly formed on the arc-shaped outer wall of the fixing ring (1), and the first fixing bolt (12) is threadedly connected in the inner cavity of the first thread groove (11).

5. The novel online pipeline circumferential positioning ovality measuring device according to claim 4 is characterized in that: The second thread groove (13) is located in the interval between two rollers on the same side of the circular arc slider (4), so the second fixing bolt (14) in the second thread groove (13) does not interfere with the rollers on both sides.

6. The novel online pipeline circumferential positioning ovality measuring device according to claim 4 is characterized in that: The cross-sectional width of the circular arc slider (4) is smaller than the cross-sectional width of the fixing ring (1).

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