Ship pipeline flange face center space position measuring device

Abstract

The utility model belongs to the field of pipeline measurement, and relates to a ship pipeline flange face center space position measuring device. A ship pipeline flange face center space position measuring device comprises a brake gear (1.1) and two equidistant extension rulers (2) coupled with the brake gear (1.1). The two equidistant extension rulers (2) are symmetrically arranged on the two opposite sides of the brake gear (1.1) with respect to the central axis of the brake gear (1.1). The ends, away from the brake gear (1.1), of the two equidistant extension rulers (2) are hinged to two opposite flange holes (9.1) in the flange (9) respectively. When the brake gear (1) rotates, the two equidistant extension rulers (2) are driven to move in opposite directions; and the rotating base (3.2) is coaxial with the flange (9). The ship pipeline flange face center space position measuring device is easy to maintain, simple in structure, reasonable in structural design and high in operation safety and universality.

Description

Technical Field

[0001] The invention belongs to the field of pipeline measurement and relates to a device for measuring the center spatial position of a ship pipeline flange surface. Background Art

[0002] In the current shipbuilding process, the basis for pipeline installation and positioning is usually the geometric center line of the pipeline that cannot be directly measured. Construction workers rely on existing tools to measure and it is difficult to meet the gradually increasing accuracy requirements. Inaccurate positioning and installation of pipelines will cause a large number of pipe sections to be reprocessed during closing, which will also increase the material cost, labor cost and time cost of shipbuilding. Most of the pipelines in the closing position are connected by flanges, which are standard parts and the flange holes are symmetrically distributed on the flange surface.

[0003] The existing device for measuring the center spatial position of a ship pipeline cannot quickly and accurately measure the center spatial position of the pipeline flange surface, and cannot accurately control the installation accuracy of the measuring pipeline. The low work efficiency increases the material cost, labor cost and time cost of ship construction. Summary of the invention

[0004] The invention aims to solve the problems that the device for measuring the center spatial position of a ship pipeline in the prior art is slow in measuring the center spatial position of a pipeline flange surface, resulting in low pipeline installation accuracy, low work efficiency and waste of material cost, labor cost and time cost in ship construction. The invention provides a device for measuring the center spatial position of a ship pipeline flange surface, comprising a brake gear and two equidistant extension rulers coupled with the brake gear; the two equidistant extension rulers are symmetrically arranged on two opposite sides of the brake gear with respect to the central axis of the brake gear; when the brake gear rotates, the two equidistant extension rulers are driven to move in opposite directions to each other; one end of the two equidistant extension rulers away from the brake gear is respectively hinged with two opposite flange holes on the flange; a driving device for driving the brake gear to rotate is arranged on one end face of the brake gear; a distance measuring device is arranged on the other end face of the brake gear; the distance measuring device can rotate around the axis of the brake gear; the axis of the two flange holes is in the same plane as the axis of the brake gear.

[0005] According to the above-mentioned device for measuring the spatial position of the center of the flange surface of a ship pipeline, it is characterized in that: the two equidistant rulers have the same length, one side of the two equidistant rulers has teeth that mesh with the brake gear; the two equidistant rulers are arranged parallel to each other on both sides of the brake gear.

[0006] According to the above-mentioned device for measuring the spatial position of the center of the flange surface of a ship pipeline, it is characterized in that: the equidistant extension ruler includes: a special-shaped rack; the teeth on the opposite sides of the two special-shaped racks are meshed with the brake gear; two hanging rulers with the same length are respectively hinged on the ends of the two special-shaped racks away from the brake gear; the two hanging rulers are respectively provided with flange hanging pins that can be inserted into two opposite flange holes on the pipeline flange; the two special-shaped racks are parallel to each other, and under the rotation of the brake gear, they move in opposite directions to each other, driving the two hanging rulers with flange hanging pins inserted into the flange holes to be tightened.

[0007] According to the above-mentioned device for measuring the spatial position of the center of the ship pipeline flange surface, it is characterized in that: a cylindrical rotating base is arranged on one end face of the brake gear; the rotating base is coaxial with the brake gear; an instrument fixing clamp is arranged on one end face of the rotating base; and a distance measuring device is fixedly arranged on the instrument fixing clamp.

[0008] According to the above-mentioned device for measuring the center spatial position of the ship pipeline flange surface, the feature is that: a ruler hole is provided on the ruler, a hanging pin is provided at one end of the special-shaped rack away from the brake gear; the special-shaped rack and the ruler are hingedly connected through the hanging pin and the ruler hole.

[0009] According to the above-mentioned device for measuring the spatial position of the center of the ship pipeline flange surface, it is characterized in that the two end surfaces of the brake gear are respectively provided with an upper cover plate and a lower cover plate.

[0010] According to the above-mentioned device for measuring the spatial position of the center of the flange surface of a ship pipeline, it is characterized in that the thickness of the special-shaped rack is the same as the thickness of the brake gear.

[0011] According to the above-mentioned device for measuring the spatial position of the center of the ship pipeline flange surface, it is characterized in that the gap between the bottom surface of the upper cover plate and the upper end surface of the brake gear, and the gap between the upper surface of the lower cover plate and the lower end surface of the brake gear are both less than 0.1mm.

[0012] According to the above-mentioned device for measuring the spatial position of the center of the ship pipeline flange surface, it is characterized in that: the driving device includes: a servo motor; the shaft hole of the brake gear is fixedly connected to the driving shaft of the servo motor.

[0013] According to the above-mentioned device for measuring the spatial position of the center of the flange surface of a ship pipeline, it is characterized in that the distance measuring device is a laser distance meter.

[0014] The advantages of the present invention compared with the prior art are:

[0015] 1. The brake gear and two equidistant rulers coupled with the brake gear of the present invention, one end face of the brake gear is provided with a driving device for driving the brake gear to rotate; the other end face of the brake gear is provided with a distance measuring device, the structure is simple, the production is convenient, and the reliability is high.

[0016] 2. The two equidistant rulers of the present invention are arranged in mirror images on both sides of the brake gear; when the brake gear rotates, the two equidistant rulers are driven to move in opposite directions to each other, thereby driving the distance measuring device arranged on the other end surface of the brake gear to rotate and complete the measurement. The operating principle is clear, the use is simple, and it is easy to understand and use.

[0017] 3. The present invention has good versatility and can be connected to a certain number of hanging rulers 4 according to different flange sizes to adapt to various pipe diameters. At the same time, no special laser rangefinder is required, and the angular distances in multiple directions can be measured through the rotating design of the rotating base.

[0018] 4. The gap between the bottom surface of the upper cover plate and the upper end surface of the brake gear, as well as the gap between the upper surface of the lower cover plate and the lower end surface of the brake gear, are both less than 0.1 mm, ensuring the smooth transmission of the brake gear and the two equidistant extensions and reducing end-to-end runout. Through on-site measurements, the flange docking accuracy problem in the current ship pipeline construction is effectively solved, and the pipeline docking accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of the structural schematic diagram of the device for measuring the spatial position of the center of the flange surface of a ship pipeline of the present invention.

[0020] Figure 2 A top view of a structural schematic diagram of a device for measuring the spatial position of the center of a ship pipeline flange surface according to the present invention.

[0021] Figure 3 A right side view of the structural schematic diagram of the device for measuring the spatial position of the center of the flange surface of a ship pipeline of the present invention.

[0022] Figure 4 A schematic diagram of the installation of a ship pipeline flange center spatial position measuring device of the present invention for measuring a pipeline flange.

[0023] In the figure: 1.1: brake gear; 2: equidistant extension ruler; 9: flange; 9.1: flange hole; 6: driving device; 5: distance measuring device; 2.1: special-shaped rack; 4: hanging ruler; 4.2: flange hanging pin; 3.2: rotating base; 3.1: instrument fixing clamp; 4.3: hanging ruler hole; 4.4: hanging pin; 3.3: upper cover; 3.4: lower cover; 1.2: servo motor. DETAILED DESCRIPTION

[0024] Preferred Embodiments

[0025] like Figure 1As shown, a device for measuring the center spatial position of a ship pipeline flange surface comprises a brake gear 1.1 and two equidistant extension rulers 2 coupled with the brake gear 1.1; the two equidistant extension rulers 2 are symmetrically arranged on two opposite sides of the brake gear 1.1 with respect to the central axis of the brake gear 1.1; when the brake gear 1.1 rotates, the two equidistant extension rulers 2 are driven to move in opposite directions to each other; one end of the two equidistant extension rulers 2 away from the brake gear 1.1 is respectively hinged to two opposite flange holes 9.1 on the flange 9; a driving device 6 for driving the brake gear 1.1 to rotate is arranged on one end face of the brake gear 1.1; a distance measuring device 5 is arranged on the other end face of the brake gear 1.1; the distance measuring device 5 can rotate around the axis of the brake gear 1.1; the axes of the two flange holes 9.1 and the axis of the brake gear 1.1 are in the same plane.

[0026] The two equidistant extension rulers 2 have the same length, and one side of the two equidistant extension rulers 2 has teeth that mesh with the brake gear 1.1; the two equidistant extension rulers 2 are arranged parallel to each other on both sides of the brake gear 1.1.

[0027] The equidistant extension ruler 2 comprises: a special-shaped rack 2.1; teeth on opposite sides of the two special-shaped racks 2.1 mesh with the brake gear 1.1; two hanging rulers 4 of the same length are respectively hinged on the ends of the two special-shaped racks 2.1 away from the brake gear 1.1; the two hanging rulers 4 are respectively provided with flange hanging pins 4.2 which can be inserted into two opposite flange holes 9.1 on the pipeline flange 9; the two special-shaped racks 2.1 are parallel to each other, and under the rotation of the brake gear 1.1, they move in opposite directions to each other, driving the two hanging rulers 4 with flange hanging pins 4.2 inserted into the flange holes 9.1 to be tightened.

[0028] A cylindrical rotating base 3.2 is arranged on one end face of the brake gear 1.1; the rotating base 3.2 is coaxial with the brake gear 1.1; an instrument fixing clamp 3.1 is arranged on one end face of the rotating base 3.2; and a distance measuring device 5 is fixedly arranged on the instrument fixing clamp 3.1.

[0029] The hanging ruler 4 is provided with a hanging ruler hole 4.3, and a hanging pin 4.4 is provided at one end of the special-shaped rack 2.1 away from the brake gear 1.1; the special-shaped rack 2.1 and the hanging ruler 4 are hingedly connected through the hanging pin 4.4 and the hanging ruler hole 4.3.

[0030] The two end surfaces of the brake gear 1.1 are respectively provided with an upper cover plate 3.3 and a lower cover plate 3.4.

[0031] The thickness of the special-shaped rack 2.1 is the same as the thickness of the brake gear 1.1.

[0032] The gap between the bottom surface of the upper cover plate 3.3 and the upper end surface of the brake gear 1.1, and the gap between the upper surface of the lower cover plate 1.3 and the lower end surface of the brake gear 1.1 are both less than 0.1 mm.

[0033] The driving device 6 comprises: a servo motor 1.2; and an axial hole of the brake gear 1.1 fixedly connected to the driving shaft of the servo motor 1.2.

[0034] The distance measuring device 5 is a laser distance measuring device.

[0035] like Figure 4 As shown: by controlling the servo motor 1.2 to start and stop, the brake gear 1.1 is driven to rotate, and the two special-shaped racks 2.1 are meshed with the brake gear 1.1, so that the two special-shaped racks 2.1 are synchronously extended and retracted in opposite directions, and the two hanging pins 4.4 are synchronously moved in opposite directions along the radial direction of the brake gear 1.1. The special-shaped rack 2.1 is hinged with the hanging ruler 4, thereby driving the two flange hanging pins 4.2 to move relative to each other. When the two flange hanging pins 4.2 are inserted and hung in the relative flange holes 9.1, the brake gear 1.1 is rotated to make the two equidistant extension rulers 2 shrink, so that the center of the rotating base 3.2 coincides with the center of the flange surface of the pipeline flange 9. Place the laser rangefinder on the instrument fixing clamp 3.1, rotate the rotating base 3.2 to the direction to be measured, and use the laser rangefinder to measure the distance to the pipeline and the surrounding structure to measure the spatial coordinate value of the center of the pipeline flange surface, thereby providing accurate positioning for pipeline installation.

[0036] During use, a certain number of hanging rulers 4 can be connected according to different flange sizes, and the flange hanging pins 4.2 on the hanging ruler 4 are hung on the opposite flange holes 9.1; the hanging pins 4.4 on the special-shaped rack 2.1 are connected to the hanging ruler 4; the servo motor 1.2 is started to make the two special-shaped racks 2.1 move toward the center of the brake gear 1.1, so that the special-shaped racks 2.1 and the hanging ruler 4 are tightened; the laser rangefinder is clamped with the instrument fixing clamp 3.1 and rotated in the direction, and the distance between the center of the pipeline flange surface and the surrounding space structure is measured respectively; finally, the measurement data is recorded, and the spatial position of the center of the ship pipeline flange surface can be calculated through the measurement data.

Claims

1. A device for measuring the spatial position of the center of the flange surface of a ship pipeline, characterized in that: The invention comprises a brake gear (1.1) and two equidistant extension rulers (2) coupled with the brake gear (1.1); the two equidistant extension rulers (2) are symmetrically arranged on two opposite sides of the brake gear (1.1) with respect to the central axis of the brake gear (1.1); when the brake gear (1.1) rotates, the two equidistant extension rulers (2) are driven to move in opposite directions to each other; one end of the two equidistant extension rulers (2) away from the brake gear (1.1) is respectively hinged to two opposite flange holes (9.1) on a flange (9); a driving device (6) for driving the brake gear (1.1) to rotate is arranged on one end surface of the brake gear (1.1); a distance measuring device (5) is arranged on the other end surface of the brake gear (1.1); the distance measuring device (5) can rotate around the axis of the brake gear (1.1); the axes of the two flange holes (9.1) and the axis of the brake gear (1.1) are in the same plane.

2. The device for measuring the center spatial position of a ship pipeline flange surface according to claim 1, characterized in that: The two equidistant extension rulers (2) have the same length, and one side of the two equidistant extension rulers (2) is provided with teeth that mesh with the brake gear (1.1); the two equidistant extension rulers (2) are arranged parallel to each other on both sides of the brake gear (1.1).

3. The device for measuring the center spatial position of a ship pipeline flange surface according to claim 2, characterized in that: The equidistant extension ruler (2) comprises: a special-shaped rack (2.1); teeth on opposite sides of two special-shaped racks (2.1) mesh with a brake gear (1.1); two hanging rulers (4) of the same length are respectively hinged on one end of the two special-shaped racks (2.1) away from the brake gear (1.1); flange hanging pins (4.2) which can be inserted into two opposite flange holes (9.1) on the pipeline flange (9) are respectively arranged on the two hanging rulers (4); the two special-shaped racks (2.1) are parallel to each other, and under the rotation of the brake gear (1.1), they move in opposite directions to each other, driving the two hanging rulers (4) with flange hanging pins (4.2) inserted into the flange holes (9.1) to be tightened.

4. The device for measuring the center spatial position of a ship pipeline flange surface according to claim 3, characterized in that: A cylindrical rotating base (3.2) is arranged on one end face of the braking gear (1.1); the rotating base (3.2) is coaxial with the braking gear (1.1); an instrument fixing clamp (3.1) is arranged on one end face of the rotating base (3.2); and a distance measuring device (5) is fixedly arranged on the instrument fixing clamp (3.1).

5. The device for measuring the center spatial position of a ship pipeline flange surface according to claim 4, characterized in that: A hanging ruler hole (4.3) is provided on the hanging ruler (4); a hanging pin (4.4) is provided on one end of the special-shaped rack (2.1) away from the brake gear (1.1); the special-shaped rack (2.1) and the hanging ruler (4) are hingedly connected through the hanging pin (4.4) and the hanging ruler hole (4.3).

6. The device for measuring the center spatial position of a ship pipeline flange surface according to claim 5, characterized in that: The two end faces of the brake gear (1.1) are respectively provided with an upper cover plate (3.3) and a lower cover plate (3.4).

7. The device for measuring the center spatial position of a ship pipeline flange surface according to claim 6, characterized in that: The thickness of the special-shaped rack (2.1) is the same as the thickness of the brake gear (1.1).

8. The device for measuring the spatial position of the center of the flange surface of a ship pipeline according to claim 7, characterized in that: The gap between the bottom surface of the upper cover plate (3.3) and the upper end surface of the brake gear (1.1), as well as the gap between the upper surface of the lower cover plate (3.4) and the lower end surface of the brake gear (1.1) are both less than 0.1 mm.

9. The device for measuring the spatial position of the center of the flange surface of a ship pipeline according to claim 1 or 8, characterized in that: The driving device (6) comprises: a servo motor (1.2); and an axial hole of the brake gear (1.1) fixedly connected to a driving shaft of the servo motor (1.2).

10. The device for measuring the center spatial position of a ship pipeline flange surface according to claim 9, characterized in that: The distance measuring device (5) is a laser distance measuring device.

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