High-precision measuring support for pipeline gyroscope

Abstract

The utility model discloses a pipeline gyroscope high-precision measuring support which comprises a fixing seat, a measuring instrument is arranged at the bottom of the fixing seat, a driving assembly is arranged in the fixing seat, a pair of fixing frames is fixedly connected to each of the two sides of the top of the fixing seat, and transmission wheels are rotationally arranged in the fixing frames. The driving assembly comprises a box body fixedly arranged in the fixing base, a motor is arranged in the box body, the output end of the motor is fixedly connected with a rotating rod, the outer side of the rotating rod is fixedly connected with a walking wheel, and an inertial gyroscope, an accelerometer and a speedometer are arranged in the measuring instrument. The pipeline gyroscope high-precision measuring support solves the problems that in the dragging process of an inertial gyroscope, a rope is prone to being affected by friction of the inner wall of a pipeline or fluid resistance, the speed is prone to fluctuating, acceleration integral errors are accumulated, posture deviation is prone to being caused by swinging of the rope or irregular pipe wall, and the measuring precision is poor. And therefore, the three-dimensional coordinate calculation precision is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline measurement technical field, concretely relates to a pipeline gyroscope high accuracy measurement support. BACKGROUND

[0002] Inertial gyroscope positioning technology is an internationally leading pipeline accurate positioning technology, which can automatically generate underground pipeline space curve graph based on x, y, z three-dimensional coordinates, realize accurate positioning of large buried depth pipeline, and is not limited by pipeline material, inertial gyroscope positioning technology is composed of hardware and software, the hardware part is composed of measurement host computer and traction steel rope two parts, the measurement host computer is composed of support and gyroscope, after pipeline directional crossing construction is completed, the measurement host computer is put into the measured pipeline, and the traction steel rope is dragged and passes through in the pipeline, and the measurement host computer will automatically record the three-dimensional space position of each point of the measured pipeline.

[0003] In the process of pipeline detection by the gyroscope, due to the need of the working mode, the first step needs to thread, a thread is threaded into the pipeline, and then the inertial gyroscope is dragged and passed through in the pipeline through the external winch, but the speed is easy to fluctuate during the dragging process, the rope is easy to be affected by the friction of the inner wall of the pipeline or the fluid resistance, the acceleration integration error is accumulated, and the attitude is easy to deviate due to the rope swing or the irregular pipe wall, so as to affect the three-dimensional coordinate solution accuracy. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a pipeline gyroscope high accuracy measurement support to solve the above-mentioned shortcomings in the prior art.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A pipeline gyroscope high accuracy measurement support, including fixed base, the fixed base bottom is provided with measuring instrument, the fixed base inside is provided with drive assembly, the fixed base top both sides are all fixedly connected with a pair of fixed frame, the fixed frame inside is rotatably provided with transmission wheel, the drive assembly includes the box body fixedly set in the fixed base interior, the box body inside is provided with motor, the motor output is fixedly connected with the rotating rod, the rotating rod outside is fixedly connected with the walking wheel.

[0007] Preferably, the measuring instrument is provided with an inertial gyroscope, an accelerometer and an odometer respectively, and is connected with an external controller through a wireless communication module.

[0008] Preferably, the fixed frame is internally provided with an installation groove, and the installation groove inner wall is slidably connected with an installation block.

[0009] Preferably, the installation block is internally rotatably provided with a rotating shaft, and the rotating shaft outer side is fixedly connected with the transmission wheel inner ring.

[0010] Preferably, the mounting block top is fixedly connected with a spring, and the top end of the spring is fixedly connected with the inner wall of the fixed frame.

[0011] Preferably, the fixed seat is fixedly connected with a fixed rod on both sides, and the fixed rod is fixedly connected with a fixed block at the top, and the fixed block is internally provided with a threading hole.

[0012] Preferably, the rotating rod is rotatably connected with a first support seat on the outside, and the rotating rod is rotatably connected with a second support seat at one end, and the first support seat and the second support seat are both fixedly installed at the bottom of the box body through bolts.

[0013] In the above technical solution, the utility model provides a kind of high-precision measuring support of pipeline gyroscope, and beneficial effect is:

[0014] I, rope is preassembled inside pipeline, fixed seat is installed on rope, walking wheel is located at the bottom of rope, and transmission wheel in fixed frame is located at the top of rope, so as to connect fixed seat with rope, motor inside box body drives rotating rod to rotate, rotating rod rotates and drives walking wheel to rotate when rotating, and walking wheel rotates and rubs with rope, so as to drive fixed seat to walk at uniform speed on rope inside pipeline, reduce speed deviation, three-dimensional angular velocity is detected by inertial gyroscope inside measuring instrument, pipeline turning is perceived by high-speed rotating gyro rotor, three-axis linear acceleration is measured by accelerometer, and distance of travel is recorded by pulse signal of odometer, so as to measure pipeline;

[0015] II, mounting block is installed in mounting groove inside fixed frame, and mounting block is rotatably connected with transmission wheel by rotating shaft, so that transmission wheel rotates when fixed seat moves, and fixed seat is guided, mounting block is pressed down by the elasticity of spring, transmission wheel has elasticity, transmission wheel can be tightly pressed outside rope, transmission wheel has buffering effect, the stability of fixed seat when moving is greatly improved, fixed block is supported and fixed by fixed rod, rope passes through threading hole, and both sides of fixed seat are supported, the contact range with rope is improved, so that fixed seat can walk stably on rope. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0017] Figure 1 The structure diagram of a preferred embodiment of the high-precision measuring support of pipeline gyroscope provided by the utility model is shown.

[0018] Figure 2 The utility model discloses a structure diagram of the drive assembly.

[0019] Figure 3 The utility model discloses a connection diagram of the fixed frame and the transmission wheel.

[0020] Figure 4 The utility model discloses a structure diagram of the transmission wheel.

[0021] 1, fixed seat, 2, measuring instrument, 3, drive assembly, 31, box body, 32, motor, 33, rotating rod, 34, walking wheel, 4, fixed frame, 5, transmission wheel, 6, installation slot, 7, mounting block, 8, rotating shaft, 9, spring, 10, fixed rod, 11, fixed block, 12, threading hole, 13, first support base, 14, second support base. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent and easy to understand, the specific implementation of the utility model is described in detail below with the attached drawings of the specification.

[0023] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0024] As Figures 1-4 The utility model discloses a kind of high-precision measurement support of pipeline gyroscope, including fixed seat 1, fixed seat 1 bottom is provided with measuring instrument 2, fixed seat 1 inside is provided with drive assembly 3, fixed seat 1 top both sides are fixedly connected with a pair of fixed frame 4, fixed frame 4 inside rotation is provided with transmission wheel 5, drive assembly 3 includes the box body 31 fixedly set in fixed seat 1 inside, box body 31 inside is provided with motor 32, motor 32 output end is fixedly connected with rotating rod 33, rotating rod 33 outside is fixedly connected with walking wheel 34.

[0025] Measuring instrument 2 inside is provided with inertial gyro, accelerometer and odometer respectively, and is connected with external controller by wireless communication module.

[0026] In the embodiment, the rope is preloaded inside the pipeline, the fixing seat 1 is installed on the rope, the walking wheel 34 is located at the bottom of the rope, and the transmission wheel 5 in the fixing frame 4 is located at the top of the rope, so as to connect the fixing seat 1 and the rope. The motor 32 inside the box body 31 drives the rotating rod 33 to rotate, the rotating rod 33 drives the walking wheel 34 to rotate when rotating, the walking wheel 34 is in contact and friction with the rope when rotating, so as to drive the fixing seat 1 to walk at a constant speed on the rope inside the pipeline, reduce the speed deviation, detect the three-dimensional angular velocity through the inertial gyroscope inside the measuring instrument 2, perceive the pipeline turning through the high-speed rotating gyro rotor, measure the three-axis linear acceleration through the accelerometer, and record the travel distance through the pulse signal of the odometer, so as to measure the pipeline.

[0027] Specifically, the fixing frame 4 is internally provided with an installation groove 6, and the installation groove 6 is internally and slidably connected with an installation block 7.

[0028] The installation block 7 is internally and rotatably provided with a rotating shaft 8, and the rotating shaft 8 is fixedly connected with the inner ring of the transmission wheel 5.

[0029] The installation block 7 is fixedly connected with a spring 9 at the top, and the top end of the spring 9 is fixedly connected with the inner wall of the fixing frame 4.

[0030] In the embodiment, the installation block 7 is installed in the installation groove 6 in the fixing frame 4, and the installation block 7 is rotatably connected with the transmission wheel 5 through the rotating shaft 8. When the fixing seat 1 moves, the transmission wheel 5 rotates, the fixing seat 1 is guided, the installation block 7 is pressed downward through the elastic force of the spring 9, the transmission wheel 5 has elastic force, the transmission wheel 5 can be tightly pressed outside the rope, and the transmission wheel 5 has a buffering effect, so that the stability of the fixing seat 1 when moving is greatly improved.

[0031] Specifically, the fixing seat 1 is fixedly connected with a fixed rod 10 at both sides, the fixed rod 10 is fixedly connected with a fixed block 11 at the top, and the fixed block 11 is internally provided with a threading hole 12.

[0032] In the embodiment, the fixed rod 10 supports and fixes the fixed block 11, the rope passes through the threading hole 12, supports both sides of the fixing seat 1, improves the contact range with the rope, and enables the fixing seat 1 to stably walk on the rope.

[0033] Specifically, the rotating rod 33 is rotatably connected with a first support seat 13 at the outside, and the rotating rod 33 is rotatably connected with a second support seat 14 at one end. The first support seat 13 and the second support seat 14 are both fixedly installed in the bottom of the box body 31 through bolts.

[0034] In the embodiment, the first support seat 13 and the second support seat 14 are installed in the box body 31 through bolts, so as to support the rotating rod 33 and make the rotating rod 33 more stable when rotating.

[0035] Working steps: one, the rope is pre-installed inside the pipeline, the fixed seat 1 is installed on the rope, the walking wheel 34 is located at the bottom of the rope, the transmission wheel 5 in the fixed frame 4 is located at the top of the rope, so as to connect the fixed seat 1 with the rope, the motor 32 inside the box body 31 drives the rotating rod 33 to rotate, the rotating rod 33 rotates and drives the walking wheel 34 to rotate, the walking wheel 34 rotates and rubs with the rope, so as to drive the fixed seat 1 to walk uniformly on the rope inside the pipeline, reduce the speed deviation, the three-dimensional angular velocity is detected by the inertial gyroscope inside the measuring instrument 2, the pipeline turning is perceived by the high-speed rotating gyro rotor, the three-axis linear acceleration is measured by the accelerometer, the distance traveled is recorded by the pulse signal of the odometer, so as to measure the pipeline;

[0036] Two, the installation block 7 is installed in the installation groove 6 inside the fixed frame 4, the installation block 7 is rotatably connected with the transmission wheel 5 through the rotating shaft 8, so that when the fixed seat 1 moves, the transmission wheel 5 rotates, the fixed seat 1 is guided, the installation block 7 is pressed downward by the elastic force of the spring 9, so that the transmission wheel 5 has elastic force, which ensures that the transmission wheel 5 can be pressed tightly outside the rope, and the transmission wheel 5 has buffering effect, which greatly improves the stability of the fixed seat 1 when moving, the fixed block 11 is supported and fixed by the fixed rod 10, the rope passes through the threading hole 12, and the two sides of the fixed seat 1 are supported, the contact range with the rope is improved, so that the fixed seat 1 can walk stably on the rope.

[0037] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the present application.

Claims

1. A high-precision measurement support for a pipe gyroscope, characterized in that, Including fixed seat (1), the fixed seat (1) bottom is provided with measuring instrument (2), the fixed seat (1) inside is provided with drive assembly (3), the fixed seat (1) top both sides are fixedly connected with a pair of fixed frame (4), the fixed frame (4) inside rotation is provided with transmission wheel (5), the drive assembly (3) includes the box body (31) fixedly arranged in the fixed seat (1) inside, the box body (31) inside is provided with motor (32), the motor (32) output is fixedly connected with the rotating rod (33), the rotating rod (33) outside is fixedly connected with walking wheel (34).

2. The pipe gyro high accuracy surveying support of claim 1, wherein, The measuring instrument (2) is provided with inertia gyroscope, accelerometer and odometer respectively in the inside, and is connected with external controller through wireless communication module.

3. The pipe gyro high accuracy measurement support of claim 1, wherein, The fixed frame (4) is internally provided with installation groove (6), and the installation groove (6) inner wall is slidably connected with installation block (7).

4. The pipe gyro high accuracy surveying support of claim 3, wherein, The rotating shaft (8) is rotatably arranged in the installation block (7), and the outer side of the rotating shaft (8) is fixedly connected with the inner ring of the transmission wheel (5).

5. The pipe gyro high accuracy measurement support of claim 4, wherein, The spring (9) is fixedly connected to the top of the installation block (7), and the top end of the spring (9) is fixedly connected with the inner wall of the fixed frame (4).

6. The pipe gyro high accuracy measurement support of claim 1, wherein, The fixed rod (10) is fixedly connected to the both sides of the fixed seat (1), the fixed rod (10) top is fixedly connected with fixed block (11), and the fixed block (11) is internally provided with threading hole (12).

7. The pipe gyro high accuracy surveying support of claim 2, wherein, The first support base (13) is rotatably connected to the outer side of the rotating rod (33), and the second support base (14) is rotatably connected to one end of the rotating rod (33), and the first support base (13) and the second support base (14) are fixedly installed in the bottom of the box body (31) by bolts.

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