Rotatably propelled inclinometer

Abstract

The utility model relates to a rotary propulsion inclinometer, which is used for monitoring the angle of a bent pipeline, and comprises a probe part, an inclinometer part and a control part, and is characterized in that the probe part comprises a rotary propulsion head arranged at one end of a spiral steel wire jacket and an inclinometer probe fixedly arranged in the spiral steel wire jacket; the control part comprises a processing circuit board with a controller, and the processing circuit board is electrically connected with the inclinometer probe through a signal cable; the driving part comprises a motor electrically connected with the processing circuit board, a spiral steel wire storage box which is in transmission connection with the motor through a transmission piece and is used for storing the spiral steel wire jacket, and a conveying sleeve which is provided with a thread matched with the spiral steel wire jacket on the inner side and is fixedly arranged. Compared with the prior art, the device has the advantages of wide applicability, convenience in operation and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to inclinometer technical field especially is related to a kind of rotary propulsion's inclinometer. BACKGROUND

[0002] Current inclinometer usually adopts hard rod-like probe, probe is connected data acquisition equipment by cable after, contains inclination meter in probe, can measure the inclination angle of a length pipeline, when using, need rely on probe's gravity, probe is connected cable after falling to the bottom of the pipeline to be measured, then pull out gradually, gather inclination data once by data acquisition equipment connected with cable every time, until probe is pulled out completely, each section inclination data is plotted, the total inclination of pipeline is obtained.

[0003] However, the existing inclinometer still has deficiencies, one is to rely on probe's gravity to be placed into pipeline, if pipeline has greater curvature, probe cannot sink by gravity alone;Two is that inclinometer has certain requirement to the smooth degree of pipeline wall, if pipeline wall is attached with sundries, even be partially blocked, probe gravity will not be enough to break through resistance to continue to sink, leading to measurement failure. INVENTION CONTENTS

[0004] To solve the technical problems in the background art, the utility model provides a kind of rotary propulsion's inclinometer to realize the angle monitoring of curved pipeline, the inclinometer includes:

[0005] Probe part: including the rotation propulsion head of being set to the spiral steel wire outer sleeve one end and the inclinometer probe of being fixedly arranged in spiral steel wire outer sleeve;

[0006] Control part: including the processing circuit board with controller, the processing circuit board is electrically connected with the inclinometer probe by signal cable;

[0007] Driving part: including motor electrically connected with the processing circuit board, spiral steel wire storage box for receiving the spiral steel wire outer sleeve by transmission member and motor transmission connection and the transmission sleeve with the thread matched with the spiral steel wire outer sleeve and fixedly arranged in the inside.

[0008] Further, the rotation propulsion head is integrally formed at one end of the spiral steel wire outer sleeve, or is installed at one end of the spiral steel wire outer sleeve.

[0009] Further, the overall shape of the rotation propulsion head is shuttle-shaped, ellipsoidal, semi-ellipsoidal, conical frustum-shaped, conical or tubular, and the maximum diameter of the outer surface of the rotation propulsion head is greater than the diameter of the spiral steel wire outer sleeve on the outside of the inclinometer probe and less than the minimum inner diameter of the pipe wall to be measured.

[0010] Further, the other end of the spiral steel wire sheath is wound and stored in the spiral steel wire storage box after passing through the transmission sleeve and is fixed at the outlet at the bottom of the spiral steel wire storage box.

[0011] Further, the inclinometer probe includes a hard pipe with a set length and an inclination sensor arranged in the hard pipe to measure the inclination angle of the length of the inclinometer probe, one end of the signal cable is connected with the inclination sensor, and the other end is connected with the processing circuit board through a conductive slip ring after passing through the other end of the spiral steel wire sheath.

[0012] Further, the transmission member includes a driving gear connected with the transmission shaft of the motor and a driven gear engaged with the driving gear, the driven gear is fixedly connected with the spiral steel wire storage box, and the driven gear is connected with the transmission sleeve through a bearing.

[0013] Further, the inclinometer further includes a length measuring part, the length measuring part includes a length measuring gear and a rotary encoder arranged on the rotary shaft of the length measuring gear, the length measuring gear is in contact with the spiral steel wire sheath and rotates with the expansion and contraction of the spiral steel wire sheath, and the rotary encoder is connected with the processing circuit board.

[0014] Further, the motor is fixedly installed in a movable support with casters, and a dust removal brush is arranged outside the spiral steel wire sheath.

[0015] Further, the length of the inclinometer probe during actual measurement is determined by the inner diameter and the bending condition of the curved pipeline, so that:

[0016]

[0017] Wherein, L0 is the length of the inclinometer probe during actual measurement, d is the inner diameter of the curved pipeline to be measured, and R is the minimum bending radius of the curved pipeline to be measured.

[0018] Further, the step of measuring the inclination angle of the curved pipeline to be measured by the inclinometer includes:

[0019] 1) arranging the inclinometer at the curved pipeline to be measured and inserting the inclinometer probe into the curved pipeline to be measured;

[0020] 2) the processing circuit board controls the motor to rotate forward, drives the spiral steel wire sheath to rotate forward, and pushes the inclinometer probe to the deepest part of the curved pipeline to be measured;

[0021] 3) temporarily turning off the motor after the inclinometer probe is stable, and the processing circuit board reads the inclination angle data α1 output by the inclination sensor at this time;

[0022] 4) The processing circuit board controls the motor to rotate in the reverse direction, driving the spiral wire jacket to rotate in the reverse direction, causing the inclinometer probe to retract to the set length, i.e., the length of the inclinometer probe during actual measurement;

[0023] 5) Temporarily turn off the motor to wait for the inclinometer probe to stabilize, and then the processing circuit board reads the inclination data α2 output by the inclination sensor at this time;

[0024] 6) Repeat steps 4) and 5) to obtain the inclination data corresponding to each set length segment in the pipeline to be tested, and draw a data map of the interior of the entire curved pipeline to be tested based on all segment length and angle data.

[0025] Compared with the prior art, the utility model has the following advantages:

[0026] The utility model provides a rotary-propelled inclinometer that can adapt to the measurement of inclination data of curved pipes with different bending conditions and different inner diameters. Through its own drive, the inclinometer probe can be smoothly inserted into the deepest part of the curved pipe to be measured, and the inclination angle corresponding to each segment length is measured in sequence according to the set segment length, finally completing the inclination measurement of all curved pipes. In addition, the utility model has a relatively simple structure, low cost, and high promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of the probe portion of the inclinometer of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the rotation drive and data acquisition part of the inclinometer of the utility model;

[0029] Figure 3 The utility model is a schematic diagram of the measurement process of the inclinometer.

[0030] Figure 4 This is a schematic diagram of the calculation relationship between the maximum length of the inclinometer of the utility model and the minimum bending radius and the minimum inner diameter of the curved pipe.

[0031] Description of reference numerals:

[0032] 1. Rotating propulsion head, 2. Inclinometer probe, 3. Signal cable, 4. Spiral wire jacket, 5. Length measuring gear, 6. Rotary encoder, 7. Spiral wire storage box, 8. Driving gear, 9. Driven gear, 10. Transmission sleeve, 11. Processing circuit board, 12. Conductive slip ring, 13. Dust removal brush, 14. Motor, 15. Bracket. DETAILED DESCRIPTION

[0033] The utility model will be described in detail below in combination with the drawings and specific embodiments. The embodiments are implemented on the premise of the technical scheme of the utility model, and detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following embodiments.

[0034] It should be noted that in the present specification, similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0036] The terms "first", "second", and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the embodiments, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the embodiments can be understood according to the specific circumstances.

[0038] In order to make the purpose, technical scheme and advantages of the utility model more clear, the embodiments of the utility model will be further described in detail below in combination with the drawings.

[0039] Embodiment

[0040] The utility model provides a kind of rotation propelling inclinometer, on the basis of the existing inclinometer inclination principle, new inclinometer scheme is proposed, probe part, cable part and cable and signal acquisition system are improved, so that inclinometer probe part has the function of rotation propelling, to adapt to curved pipeline and the situation of sundry blockage, the rotation propelling inclinometer of the utility model includes the following parts:

[0041] 1, probe part

[0042] The structure of probe part is as shown in Figure 1As shown, the probe part is composed of a rotating propulsion head 1, an inclinometer probe 2, a signal cable 3 connected at one end of the inclinometer probe 2, and a spiral steel wire sheath 4 (the front part is shown in the figure). The inclinometer probe 2 is arranged in the hollow spiral steel wire sheath 4, and the head of the spiral steel wire sheath 4 is integrally formed with the rotating propulsion head 1. Alternatively, the rotating propulsion head 1 can be additionally arranged at one end of the spiral steel wire sheath 4.

[0043] In this embodiment, a simple implementation scheme of the rotating propulsion head 1 can be a section of spiral steel wire, or other forms of rotating propulsion head. The rotating propulsion head 1 can be in the shape of a shuttle, an ellipsoid, a semi-ellipsoid, a circular truncated cone, a cone, a tube, etc. The maximum diameter of the outer surface of the rotating propulsion head 1 is greater than the diameter of the inclinometer probe 2 plus the spiral steel wire sheath 4, and is less than the minimum inner diameter of the pipe wall to be measured, so that the spiral steel wire sheath 4 can accommodate the inclinometer probe 2, and the rotating propulsion head 1 can extend into the pipe wall to be measured.

[0044] The inclinometer probe 2 is specifically a section of hard steel pipe (other hard materials are also available), which can be in the shape of a circle or a square, etc. An inclination sensor is arranged in the steel pipe to measure the corresponding inclination angle within the length range of the inclinometer probe 2. In addition, in order to facilitate the propulsion of the inclinometer probe 2 in the pipeline, the length of the inclinometer probe 2 needs to be less than the minimum bending radius of the pipeline to be measured. If the bending radius of the pipeline is small, the length of the inclinometer probe 2 needs to be adjusted to adapt to the pipeline to be measured. The shorter the length of the inclinometer, the shorter the test collection interval and the more dense the data, and the longer the test period. Therefore, a comprehensive consideration is needed.

[0045] The spiral steel wire sheath 4 is wound outside the inclinometer probe 2 and the signal cable 3, which can not only protect the inclinometer probe 2 and the signal cable 3, but also transmit the rotating force to the rotating propulsion head 1.

[0046] The inclinometer probe 2 is arranged in the spiral steel wire sheath 4 and close to one end of the rotating propulsion head 1, and can synchronously rotate with the spiral steel wire sheath 4. The total length of the signal cable 3 and the spiral steel wire sheath 4 is determined according to the length of the pipeline to be measured, which is usually much longer than the inclinometer probe 2 itself and can be freely bent.

[0047] 2. Rotating drive and data acquisition part

[0048] The composition of the rotating drive and data acquisition part is as follows: Figure 2As shown, it consists of a spiral wire jacket 4 (the part except the front section is shown in the figure), a length measuring gear 5, a rotary encoder 6, a driving gear 8, a driven gear 9, a transmission sleeve 10 with an inner thread, a spiral wire storage box 7, a conductive slip ring 12, a processing circuit board 11, a motor 14, a movable bracket 15 and a dust removal brush 13, wherein the length measuring gear 5, the rotary encoder 6, the driving gear 8, the driven gear 9, the transmission sleeve 10 with an inner thread, the spiral wire storage box 7, the conductive slip ring 12, the processing circuit board 11 and the dust removal brush 13 can be jointly arranged in a shell (not shown in the figure) arranged on the bracket 15.

[0049] The signal cable 3 of the inclinometer is always placed in the hollow spiral steel wire jacket 4, which plays a role in protecting the signal cable 3. When the cable 3 and the spiral steel wire 4 are not in use, they are wound and stored in the spiral steel wire storage box 7. The tail of the spiral steel wire jacket 4 is fixed to the bottom outlet of the spiral steel wire storage box 7. Figure 2 The signal cable 3 extends out from the bottom outlet of the spiral wire storage box 7 and is electrically connected to the rotating end of the conductive slip ring 12. The fixed end of the conductive slip ring 12 is electrically connected to the circuit board 11 to transmit the output angle signal of the inclination sensor. The circuit board 11 is also connected to the signal line of the rotary encoder 6 and the drive signal line of the motor 14 through a cable respectively.

[0050] A motor 14 is fixed inside the mobile bracket 15, and a plurality of casters are provided at the bottom for easy movement. The driving gear 8 is fixedly sleeved on the transmission shaft of the motor 14 and meshes with the driven gear 9. The driven gear 9 is fixedly connected to the spiral wire storage box 7 and rotates synchronously. The transmission sleeve 10 is fixed on the shell and cannot rotate itself. The transmission sleeve 10 is connected to the driven gear 9 through a bearing.

[0051] It can be known that the present invention can not only realize rotational drive transmission by means of the motor 14 cooperating with the driving gear 8 and the driven gear 9, but can also be realized by other known drive transmission methods, which will not be described in detail here.

[0052] The length measuring gear 5 is installed inside the housing through a rotating shaft, and the rotary encoder 6 is installed on the rotating shaft. The teeth of the length measuring gear 5 are in contact with the spiral steel wire 4. When the spiral steel wire 4 rotates to achieve advancement or retraction, the rotating shaft rotates synchronously by driving the length measuring gear 5, and then the length of advancement or retraction of the spiral steel wire 4 is measured by the rotary encoder 6.

[0053] Before use, the mobile support 1 is moved to a suitable position, the motor 14 is driven by the circuit board 11 to rotate the driving gear 8 and the driven gear 9, the driven gear 9 and the spiral steel wire storage box 7 are rigidly connected, so that the rotation of the driven gear 9 drives the spiral steel wire storage box 7 to rotate synchronously, the rotation of the spiral steel wire storage box 7 drives the spiral steel wire 4 to rotate axially, and further drives the rotating propelling head 1 in the pipe to advance or recover, the conveying sleeve 10 is provided with a spiral thread, and the spiral steel wire sleeve 4 can provide a screw advancing thrust or a backward recovering pulling force when rotating. Figure 1

[0054] The rotation of the spiral steel wire storage box 7 drives the signal cable 3 in the spiral steel wire sleeve 4 to rotate synchronously, so that the signal cable 3 is rotatably connected to the fixed circuit board 11 through the conductive slip ring 12, the other end of the signal cable 3 is connected to the inclination sensor, so that the circuit board 11 can receive and process the angle measurement data output by the inclination sensor when the signal cable 3 rotates.

[0055] When the motor 14 drives the spiral steel wire sleeve 4 to advance or recover through rotation, in order to measure the advancing or recovering length, a toothed length measuring gear 5 is arranged in contact with the outer surface of the spiral steel wire sleeve 4, a rotary encoder 6 is connected to the rotating shaft of the length measuring gear 5, the rotary encoder 6 can calculate the length information of the spiral steel wire 4 advancing or recovering by measuring the rotating angle multiplied by the diameter of the length measuring gear 5, and the length information is transmitted to the circuit board 11 for unified collection and processing through a signal line, the teeth of the length measuring gear 5 are arranged to avoid the spiral steel wire sleeve 4 from slipping due to rotating vibration during conveying, so that more accurate length information is provided.

[0056] In order to avoid the influence of sundries attached to the spiral steel wire sleeve 4 on the length measuring gear 6 and the conveying sleeve 10, a pair of dust removal brushes 13 are arranged between the rotating propelling head 1 and the length measuring gear 5 in the shell, the dust removal brushes 13 are in contact with the outer surface of the spiral steel wire sleeve 4, and are used for cleaning dust and sundries on the spiral steel wire sleeve 4, and lubricating oil can also be applied to the spiral steel wire sleeve 4 to make the spiral steel wire sleeve 4 rotate smoothly.

[0057] The measurement process of the rotating propelling inclinometer provided by the utility model is as follows:

[0058] The measurement process is as follows Figure 3 ​As shown, first, the circuit board 11 drives the motor 14, so that the rotating propelling head 1 at the outer end of the spiral steel wire sheath 4 drives the inclinometer probe 2 and the signal cable 3 to extend into the deepest part of the pipeline to be measured, the motor 14 is turned off, and after waiting for a set time to stabilize (usually a few seconds), the inclination data α1 output by the inclination sensor is read; then the motor 14 is reversed to pull back a set distance, the motor 14 is paused, and after waiting for a set time to stabilize (usually a few seconds) the inclination data α2 output by the inclination sensor is read, then the motor 14 is reversed again to pull back a set distance, and the set distance is the length of the inclinometer probe 2 during actual measurement, and so on, so that the length and inclination data of each part of the pipeline can be measured in segments, and finally all the data are collected to draw a length and angle data graph of the entire curved pipeline.

[0059] Selection of the length of the inclinometer probe

[0060] Because the pipeline environment to which the inclinometer provided by the utility model is applied is a curved pipeline, not a straight pipeline, in order to ensure that the spiral steel wire sheath 4 and the inclinometer probe 2 can smoothly extend to each part of the curved pipeline, the calculation relationship between the maximum length of the inclinometer probe 2 and the minimum bending radius of the curved pipeline and the minimum inner diameter of the curved pipeline is as shown in Figure 4

[0061] Assuming that L is the theoretically calculated length of the inclinometer probe 2, d is the minimum inner diameter of the curved pipeline, and R is the minimum bending radius of the curved pipeline, it can be known from Figure 4 Before measurement, the inner diameter and the bending condition of the curved pipeline to be measured need to be evaluated, and then the inclinometer probe 2 with a suitable length is selected, usually, the length L0 of the inclinometer probe 2 during actual measurement is 2 / 3 of the theoretically calculated length L, that is, so as to ensure that the inclinometer probe 2 can smoothly extend into the pipeline, in actual use, the longer the length of the inclinometer probe 2, the fewer the measurement segments, and the faster the test period; the shorter the length of the inclinometer, the more dense the test segments, the greater the error of each segment, and the longer the test process; in addition, when the inner diameter d of the pipe wall is very large and the length of the inclinometer is very short, the test accuracy of each segment cannot be ensured, and only the overall inclination distribution of the pipeline can be observed.

[0062] In summary, the inclinometer provided by the utility model can adapt to the inclination data measurement of curved pipelines with different bending conditions and different inner diameters, the inclinometer probe can be smoothly deepened into the deepest part of the curved pipeline to be measured through the self-provided drive, and the inclination angle corresponding to each segment length can be sequentially measured according to the set segment length, and finally the inclination measurement of the entire curved pipeline is completed, in addition, the structure of the utility model is relatively simple, the cost is low, and the utility model has high popularization and application value.

[0063] ​​The preferred embodiments of the present application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative work according to the concept of the present application. Therefore, any technical solutions obtained by logical analysis, reasoning or limited experiments on the basis of the prior art according to the concept of the present application shall be within the protection scope defined by the claims.

Claims

1. A rotationally propelled inclinometer for use in the angular monitoring of a curved pipe, characterized in that, The inclinometer comprises: a probe part comprising a rotating propulsion head (1) arranged at one end of a spiral steel wire sheath (4) and an inclinometer probe (2) fixedly arranged in the spiral steel wire sheath (4); a control part comprising a processing circuit board (11) with a controller, the processing circuit board (11) being electrically connected with the inclinometer probe (2) through a signal cable (3); a driving part comprising a motor (14) electrically connected with the processing circuit board (11), a spiral steel wire storage box (7) in transmission connection with the motor (14) and used for storing the spiral steel wire sheath (4), and a transmission sleeve (10) fixedly arranged at the inner side of the spiral steel wire sheath (4) and having a thread matched with the spiral steel wire sheath (4).

2. A rotationally-propelled inclinometer according to claim 1, wherein, The rotating propulsion head (1) is integrally formed at one end of the spiral steel wire sheath (4) or is mounted at one end of the spiral steel wire sheath (4).

3. A rotationally-propelled inclinometer according to claim 1, wherein, The overall shape of the rotating propulsion head (1) is shuttle-shaped, ellipsoidal, semi-ellipsoidal, conical frustum-shaped, conical or tubular, and the maximum diameter of the outer surface of the rotating propulsion head (1) is greater than the diameter of the spiral steel wire sheath (4) at the outer side of the inclinometer probe (2) and is less than the minimum inner diameter of the pipe wall to be measured.

4. A rotationally-propelled inclinometer according to claim 1, wherein, The other end of the spiral steel wire sheath (4) is wound and stored in the spiral steel wire storage box (7) after passing through the transmission sleeve (10) and is fixed at the wire outlet at the bottom of the spiral steel wire storage box (7).

5. A rotationally-propelled inclinometer according to claim 1, wherein, The inclinometer probe (2) comprises a hard pipe with a set length and an inclinometer sensor arranged in the hard pipe and used for measuring the inclination angle of the length where the inclinometer probe (2) is located, one end of the signal cable (3) is connected with the inclinometer sensor, and the other end is connected with the processing circuit board (11) through a conductive slip ring (12) after passing through the other end of the spiral steel wire sheath (4).

6. A rotationally-propelled inclinometer according to claim 1, wherein, The transmission member comprises a driving gear (8) connected with the transmission shaft of the motor (14) and a driven gear (9) in meshing connection with the driving gear (8), the driven gear (9) is fixedly connected with the spiral steel wire storage box (7), and the driven gear (9) is connected with the transmission sleeve (10) through a bearing.

7. A rotationally-propelled inclinometer according to claim 1, wherein, The inclinometer further comprises a length measuring part, the length measuring part comprising a length measuring gear (5) and a rotary encoder (6) arranged on the rotating shaft of the length measuring gear (5), the length measuring gear (5) is in contact with the spiral steel wire sheath (4) and rotates with the expansion and contraction of the spiral steel wire sheath (4), and the rotary encoder (6) is connected with the processing circuit board (11).

8. A rotationally-propelled inclinometer according to claim 7, wherein, The motor (14) is fixedly mounted in a movable support (15) with casters, and a dust removal brush (13) is arranged outside the spiral steel wire sheath (4).

9. A rotationally-propelled inclinometer according to claim 7, wherein, The length of the inclinometer probe (2) during actual measurement is determined by the inner diameter and bending condition of the curved pipeline to be measured, and thus: wherein L0 is the length of the inclinometer probe during actual measurement, d is the inner diameter of the curved pipeline to be measured, and R is the minimum bending radius of the curved pipeline to be measured.

Images