CN212692814U - Pipeline detection device with variable structure - Google Patents

Pipeline detection device with variable structure Download PDF

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Publication number
CN212692814U
CN212692814U CN202021935799.0U CN202021935799U CN212692814U CN 212692814 U CN212692814 U CN 212692814U CN 202021935799 U CN202021935799 U CN 202021935799U CN 212692814 U CN212692814 U CN 212692814U
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pipeline
vertical
base
horizontal
driving
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CN202021935799.0U
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董秋生
黎泽伦
张曼
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Chongqing University of Science and Technology
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Chongqing University of Science and Technology
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Abstract

The utility model discloses a pipeline detection device with a variable structure, which comprises a base, a walking mechanism, a translation mechanism, a lifting mechanism and a rotation measuring mechanism; the walking mechanism comprises a universal ball and a rear wheel which are arranged at the lower end of the base and a power mechanism; translation mechanism installs on the base and is used for driving elevating system and removes along the horizontal direction, elevating system installs translation mechanism is last and is used for driving rotatory measuring mechanism and goes up and down along vertical direction, rotatory measuring mechanism is used for driving laser probe rotatory in order to utilize laser probe to detect the pipeline, base lower extreme still fixed mounting has the electro-magnet. The pipeline detection device can measure the roughness, the roundness and the diameter of the inner surface of a pipeline by moving the universal ball and the rear wheel. The lifting device, the translation device and the rotating device can be in a pipeline and can be in self-adaptive adjustment structure according to different sizes in the pipeline. The automatic positioning is stable after the detection position is reached, and the detection precision is improved.

Description

Pipeline detection device with variable structure
Technical Field
The utility model relates to a pipeline inspection technical field especially relates to a pipeline inspection device of varistructure.
Background
Aiming at the technical requirements of the pipeline detection industry, a plurality of pipeline detection devices are available at present, the structure is complex, the detection method is low in precision, slow in speed, large in workload and easy to generate large errors, and meanwhile, the detection range is limited by pipe diameters of different specifications and is greatly influenced.
SUMMERY OF THE UTILITY MODEL
To the deficiency of the prior art, the technical problem to be solved by the present patent application is: how to provide a pipeline detection device with a variable structure, which has the advantages of simple structure, convenience in use, large measurement range and high detection precision.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a pipeline detection device with a variable structure comprises a base, a traveling mechanism, a translation mechanism, a lifting mechanism and a rotation measuring mechanism; the walking mechanism comprises universal balls and 2 rear wheels which are arranged at the lower end of the base, and a power mechanism for driving the rear wheels to move; translation mechanism installs on the base and is used for driving elevating system and removes along the horizontal direction, elevating system installs translation mechanism is last and is used for driving rotatory measuring mechanism and goes up and down along vertical direction, rotatory measuring mechanism is used for driving laser probe rotatory in order to utilize laser probe to detect the pipeline, base lower extreme still fixed mounting has the electro-magnet.
Thus, the pipeline detection device can measure the roughness, roundness and diameter of the inner surface of the pipeline by moving the universal ball and the rear wheel. The lifting device, the translation device and the rotating device can be in a pipeline and can be in self-adaptive adjustment structure according to different sizes in the pipeline. The automatic positioning is stable after the detection position is reached, and the detection precision is improved. The electromagnet is adsorbed on the surface of the pipeline to fix the device, and after the measurement is finished, the electromagnet is powered off, and the device continues to travel.
The power mechanism comprises two stepping motors fixedly mounted at the lower end of the base, output shafts of the stepping motors are fixedly connected with driving shafts, wheel shafts in the middle of the rear wheels are connected with the base through wheel carriers, the base is downwards fixedly mounted with a walking gear box, the driving shafts are connected with the walking gear box, and the walking gear box is connected with the wheel shafts. The stepping motor moves to transmit power to the driving shaft, so that the driving shaft rotates, the rotating direction is changed under the action of the bevel gear in the gearbox, and the rear wheel rotates. So that the device can freely walk in the deep pipeline. And at the bend, the differential steering principle is utilized to control the different rotating speeds of the two rear wheels to realize steering.
The horizontal lead screw mechanism comprises a horizontal lead screw support fixedly mounted on a base, a horizontal lead screw is rotatably mounted on the horizontal lead screw support, a horizontal guide rail parallel to the horizontal lead screw is fixedly mounted on the horizontal lead screw support, a horizontal nut is screwed on the horizontal lead screw in a matched mode, the horizontal nut is in sliding fit on the horizontal guide rail, a horizontal driving motor is fixedly mounted on the base, and the horizontal driving motor is connected with the lead screw through a gear box reducing mechanism. The horizontal driving motor rotates to drive the horizontal screw rod to rotate through the gear box reducing mechanism, the horizontal nut changes the rotating motion into sliding motion under the action of the horizontal screw rod, the axial precise translation of the device is realized under the auxiliary action of the horizontal guide rail, and the state of the pipeline is accurately detected.
The horizontal nut upwards fixedly mounted has a support, elevating system includes vertical lead screw bracket of fixed mounting on the support, through vertical guide rail fixed connection between the vertical lead screw, rotate on the vertical lead screw bracket and install vertical lead screw, connect the cooperation soon on the vertical lead screw and have vertical nut, sliding fit has the slider on the vertical guide rail, vertical nut with slider fixed connection, fixed mounting has vertical driving motor on the support, vertical driving motor's output shaft passes through gear drive and is connected with vertical lead screw lower extreme transmission, the outside fixed mounting of vertical nut has the test table. The vertical driving motor rotates to drive the vertical screw rod to rotate through gear transmission, and the vertical nut slides up and down to translate under the action of the vertical screw rod.
The rotation measuring mechanism comprises a rotating shaft support fixedly mounted on the detection table, a rotating shaft is rotatably mounted on the rotating shaft support, a rotating arm fixing seat is mounted at one end of the rotating shaft through a bearing seat, a rotating arm is mounted on the rotating arm fixing seat through a lock nut, the laser probe is mounted at one end of the rotating arm, a rotating motor is fixedly mounted on the detection table and connected with the rotating shaft through a reduction gear box; the rotary shaft is provided with an encoder, and the detection table is provided with a limit switch.
In this way, after reaching the optimal measuring position in cooperation with the lifting structure and the translation structure. The rotating motor rotates, the rotating shaft is driven to rotate through the reduction gear box, the encoder converts the rotary angular displacement into a pulse signal and controls the angular displacement, so that the rotating motor operates stably and the detection is accurate. The rotating arm rotates, the laser probe rotates along with the rotating arm, and the state of the inner wall of the pipeline is detected. The rotating arm rotates 360 degrees to the maximum degree, and when the rotating arm rotates 360 degrees, the limit switch is turned on. The rotary measuring mechanism transversely translates under the action of the translation mechanism, and the rotary measuring mechanism continues to measure, so that the 3-dimensional information of the pipeline is accurately measured. And after the measurement is finished, the limit switch is turned on, so that the stability of the device is improved. The limit switch is used for controlling the rotation angle of the rotating arm.
According to the rotation of the laser probe of the rotary measuring mechanism, the distance between the upper top surface and the lower bottom surface of the pipeline is measured, and then the upper distance and the lower distance are enabled to be as close to the central line position of the pipeline as possible under the action of the lifting mechanism, so that the variable structure is in the optimal measuring position.
Wherein, the balancing weight is fixedly installed at one end of the rotating arm, which is not provided with the laser probe. Preventing the rotation process from overturning.
In conclusion, the pipeline detection device with the variable structure has the following beneficial effects:
the pipeline detection device can measure the roughness, the roundness and the diameter of the inner surface of a pipeline by moving the universal ball and the rear wheel. The lifting device, the translation device and the rotating device can be in a pipeline and can be in self-adaptive adjustment structure according to different sizes in the pipeline, the application range is wide, and the measurement precision is high. The automatic positioning is stable after the detection position is reached, and the detection precision is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the traveling mechanism.
Fig. 3 is a schematic structural view of the translation mechanism.
Fig. 4 is a schematic structural view of the elevating mechanism.
Fig. 5 is a schematic structural view of the rotation measuring mechanism.
In the attached drawing, 1, a lifting mechanism, 2, a rotation measuring mechanism, 3, a limit switch, 4, a traveling mechanism, 5, an electromagnet, 6, a translation mechanism, 7, a balancing weight, 8, a laser probe, 9, a universal ball, 10, a stepping motor, 11, a driving shaft, 12, a rear wheel, 13, a traveling gear box, 14, a horizontal screw rod, 15, a horizontal guide rail, 16, a horizontal nut, 17, a horizontal driving motor, 18, a gear box reducing mechanism, 19, a vertical nut, 20, a vertical screw rod, 21, a vertical driving motor, 22, a gear, 23, a sliding block, 24, a vertical guide rail, 25, a rotating arm, 26, a rotating arm fixing seat, 28, a reducing gear box, 29, an encoder, 30, a rotating motor, 31, a bearing seat, 32, a locking nut, 33, a laser probe and 34 are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. In the present embodiment, the terms "upper", "lower", "left", "right", "front", "rear", "upper end", "lower end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, but do not indicate or imply that the designated device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-5, a pipeline detection device with a variable structure comprises a base, a traveling mechanism, a translation mechanism, a lifting mechanism and a rotation measuring mechanism; the walking mechanism comprises universal balls and 2 rear wheels which are arranged at the lower end of the base, and a power mechanism for driving the rear wheels to move; translation mechanism installs on the base and is used for driving elevating system and removes along the horizontal direction, elevating system installs translation mechanism is last and is used for driving rotatory measuring mechanism and goes up and down along vertical direction, rotatory measuring mechanism is used for driving laser probe rotatory in order to utilize laser probe to detect the pipeline, base lower extreme still fixed mounting has the electro-magnet.
Thus, the pipeline detection device can measure the roughness, roundness and diameter of the inner surface of the pipeline by moving the universal ball and the rear wheel. The lifting device, the translation device and the rotating device can be in a pipeline and can be in self-adaptive adjustment structure according to different sizes in the pipeline. The automatic positioning is stable after the detection position is reached, and the detection precision is improved. The electromagnet is adsorbed on the surface of the pipeline to fix the device, and after the measurement is finished, the electromagnet is powered off, and the device continues to travel.
The power mechanism comprises two stepping motors fixedly mounted at the lower end of the base, output shafts of the stepping motors are fixedly connected with driving shafts, wheel shafts in the middle of the rear wheels are connected with the base through wheel carriers, the base is downwards fixedly mounted with a walking gear box, the driving shafts are connected with the walking gear box, and the walking gear box is connected with the wheel shafts. The stepping motor moves to transmit power to the driving shaft, so that the driving shaft rotates, the rotating direction is changed under the action of the bevel gear in the gearbox, and the rear wheel rotates. So that the device can freely walk in the deep pipeline. And at the bend, the differential steering principle is utilized to control the different rotating speeds of the two rear wheels to realize steering.
The horizontal lead screw mechanism comprises a horizontal lead screw support fixedly mounted on a base, a horizontal lead screw is rotatably mounted on the horizontal lead screw support, a horizontal guide rail parallel to the horizontal lead screw is fixedly mounted on the horizontal lead screw support, a horizontal nut is screwed on the horizontal lead screw in a matched mode, the horizontal nut is in sliding fit on the horizontal guide rail, a horizontal driving motor is fixedly mounted on the base, and the horizontal driving motor is connected with the lead screw through a gear box reducing mechanism. The horizontal driving motor rotates to drive the horizontal screw rod to rotate through the gear box reducing mechanism, the horizontal nut changes the rotating motion into sliding motion under the action of the horizontal screw rod, the axial precise translation of the device is realized under the auxiliary action of the horizontal guide rail, and the state of the pipeline is accurately detected.
The horizontal nut upwards fixedly mounted has a support, elevating system includes vertical lead screw bracket of fixed mounting on the support, through vertical guide rail fixed connection between the vertical lead screw, rotate on the vertical lead screw bracket and install vertical lead screw, connect the cooperation soon on the vertical lead screw and have vertical nut, sliding fit has the slider on the vertical guide rail, vertical nut with slider fixed connection, fixed mounting has vertical driving motor on the support, vertical driving motor's output shaft passes through gear drive and is connected with vertical lead screw lower extreme transmission, the outside fixed mounting of vertical nut has the test table. The vertical driving motor rotates to drive the vertical screw rod to rotate through gear transmission, and the vertical nut slides up and down to translate under the action of the vertical screw rod.
The rotation measuring mechanism comprises a rotating shaft support fixedly mounted on the detection table, a rotating shaft is rotatably mounted on the rotating shaft support, a rotating arm fixing seat is mounted at one end of the rotating shaft through a bearing seat, a rotating arm is mounted on the rotating arm fixing seat through a lock nut, the laser probe is mounted at one end of the rotating arm, a rotating motor is fixedly mounted on the detection table and connected with the rotating shaft through a reduction gear box; the rotary shaft is provided with an encoder, and the detection table is provided with a limit switch.
In this way, after reaching the optimal measuring position in cooperation with the lifting structure and the translation structure. The rotating motor rotates, the rotating shaft is driven to rotate through the reduction gear box, the encoder converts the rotary angular displacement into a pulse signal and controls the angular displacement, so that the rotating motor operates stably and the detection is accurate. The rotating arm rotates, the laser probe rotates along with the rotating arm, and the state of the inner wall of the pipeline is detected. The rotating arm rotates 360 degrees to the maximum degree, and when the rotating arm rotates 360 degrees, the limit switch is turned on. The rotary measuring mechanism transversely translates under the action of the translation mechanism, and the rotary measuring mechanism continues to measure, so that the 3-dimensional information of the pipeline is accurately measured. And after the measurement is finished, the limit switch is turned on, so that the stability of the device is improved. The limit switch is used for controlling the rotation angle of the rotating arm.
According to the rotation of the laser probe of the rotary measuring mechanism, the distance between the upper top surface and the lower bottom surface of the pipeline is measured, and then the upper distance and the lower distance are enabled to be as close to the central line position of the pipeline as possible under the action of the lifting mechanism, so that the variable structure is in the optimal measuring position.
Wherein, the balancing weight is fixedly installed at one end of the rotating arm, which is not provided with the laser probe. Preventing the rotation process from overturning.
Specifically, the system also comprises a PLC control used for receiving signals of the laser probe, the limit switch, the encoder, the motor and the electromagnet.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (6)

1. The pipeline detection device with the variable structure is characterized by comprising a base, a traveling mechanism, a translation mechanism, a lifting mechanism and a rotation measuring mechanism; the walking mechanism comprises universal balls and 2 rear wheels which are arranged at the lower end of the base, and a power mechanism for driving the rear wheels to move; translation mechanism installs on the base and is used for driving elevating system and removes along the horizontal direction, elevating system installs translation mechanism is last and is used for driving rotatory measuring mechanism and goes up and down along vertical direction, rotatory measuring mechanism is used for driving laser probe rotatory in order to utilize laser probe to detect the pipeline, base lower extreme still fixed mounting has the electro-magnet.
2. The variable structure pipeline detection device of claim 1, wherein the power mechanism comprises two stepping motors fixedly mounted at the lower end of the base, the output shafts of the stepping motors are fixedly connected with driving shafts, the wheel shafts in the middle of the rear wheels are connected with the base through wheel carriers, the base is downwards fixedly mounted with a walking gear box, the driving shafts are connected with the walking gear box, and the walking gear box is connected with the wheel shafts.
3. The variable structure pipeline detection device according to claim 2, wherein the translation mechanism includes a horizontal lead screw bracket fixedly mounted on the base, a horizontal lead screw is rotatably mounted on the horizontal lead screw bracket, a horizontal guide rail parallel to the horizontal lead screw is fixedly mounted on the horizontal lead screw bracket, a horizontal nut is rotatably fitted on the horizontal lead screw, the horizontal nut is slidably fitted on the horizontal guide rail, and a horizontal driving motor is fixedly mounted on the base and is connected with the lead screw through a gear box reduction mechanism.
4. The device for detecting the pipeline with the variable structure according to claim 3, wherein the horizontal nut is fixedly installed with a support upwards, the lifting mechanism comprises a vertical screw rod bracket fixedly installed on the support, the vertical screw rods are fixedly connected with each other through a vertical guide rail, a vertical screw rod is rotatably installed on the vertical screw rod bracket, a vertical nut is screwed and matched on the vertical screw rod, a sliding block is slidably matched on the vertical guide rail, the vertical nut is fixedly connected with the sliding block, a vertical driving motor is fixedly installed on the support, an output shaft of the vertical driving motor is in transmission connection with the lower end of the vertical screw rod through gear transmission, and a detection table is fixedly installed on the vertical nut outwards.
5. The variable structure pipeline inspection device according to claim 4, wherein the rotation measuring mechanism comprises a rotating shaft bracket fixedly mounted on the inspection table, a rotating shaft is rotatably mounted on the rotating shaft bracket, a rotating arm fixing seat is mounted at one end of the rotating shaft through a bearing seat, a rotating arm is mounted on the rotating arm fixing seat through a lock nut, the laser probe is mounted at one end of the rotating arm, a rotating motor is fixedly mounted on the inspection table, and the rotating motor is connected with the rotating shaft through a reduction gear box; the rotary shaft is provided with an encoder, and the detection table is provided with a limit switch.
6. The variable structure pipeline inspection device of claim 5, wherein a counterweight is fixedly mounted at the end of the rotating arm where the laser probe is not mounted.
CN202021935799.0U 2020-09-08 2020-09-08 Pipeline detection device with variable structure Active CN212692814U (en)

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Application Number Priority Date Filing Date Title
CN202021935799.0U CN212692814U (en) 2020-09-08 2020-09-08 Pipeline detection device with variable structure

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Application Number Priority Date Filing Date Title
CN202021935799.0U CN212692814U (en) 2020-09-08 2020-09-08 Pipeline detection device with variable structure

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114252046A (en) * 2021-12-10 2022-03-29 凯德自控武汉智能装备有限公司 Pipeline detection platform
CN114812387A (en) * 2022-04-01 2022-07-29 中信戴卡股份有限公司 Device and method for detecting size of aluminum alloy hub casting blank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114252046A (en) * 2021-12-10 2022-03-29 凯德自控武汉智能装备有限公司 Pipeline detection platform
CN114252046B (en) * 2021-12-10 2024-04-16 凯德自控武汉智能装备有限公司 Pipeline detection platform
CN114812387A (en) * 2022-04-01 2022-07-29 中信戴卡股份有限公司 Device and method for detecting size of aluminum alloy hub casting blank

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