CN115199860A

CN115199860A - Pipeline quality detection device for hydraulic engineering

Info

Publication number: CN115199860A
Application number: CN202210683132.3A
Authority: CN
Inventors: 赵晨羽; 亢春峰; 王文婷; 王艳玲; 张旭; 张雪松; 张理想; 丁锵
Original assignee: Xuzhou Dechuang Construction Engineering Co ltd
Current assignee: Xuzhou Dechuang Construction Engineering Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-10-18

Abstract

The invention discloses a pipeline quality detection device for hydraulic engineering, which comprises a walking vehicle, an electric rotating platform and a distance adjusting mechanism, wherein the electric rotating platform is fixedly arranged at the front end of the walking vehicle, the distance adjusting mechanism comprises a base, a coarse adjusting slide seat, a fine adjusting slide seat and a distance adjusting motor which are fixedly arranged on the electric rotating platform, a rack is fixedly arranged on the base, the coarse adjusting slide seat is slidably connected with the base, a transmission shaft is arranged at the rear part of the coarse adjusting slide seat, a gear is arranged at the right side of the coarse adjusting slide seat, an elastic reset element is arranged at the rear end of the coarse adjusting slide seat, the left end of the transmission shaft is in transmission connection with the distance adjusting motor, a cam is fixedly arranged at the middle part of the transmission shaft, the right end of the transmission shaft is connected with the gear through a coupler, the fine adjusting slide seat is slidably connected with the coarse adjusting slide seat, the coupler comprises a pair of transmission discs which are concentric and are respectively arranged on the transmission shaft and the gear, and two transmission discs are respectively provided with a bulge capable of mutually combining and transmitting power on opposite surfaces of the two transmission discs. The invention belongs to the field of detection equipment, and compared with the prior art, the invention has the advantages that: convenient for on-site detection and has good detection effect.

Description

Pipeline quality detection device for hydraulic engineering

Technical Field

The invention relates to the field of detection equipment, in particular to a pipeline quality detection device for hydraulic engineering.

Background

Hydraulic engineering is a general term for various engineering constructions constructed for controlling, utilizing and protecting water resources and environments on the earth's surface and underground, and is classified into flood control engineering, farmland hydraulic engineering, hydroelectric power engineering, channel and harbor engineering, water supply and drainage engineering, environmental hydraulic engineering, coastal reclamation engineering, and the like according to service objects thereof. Generally, the water storage and supply and drainage device comprises a water source, and a metal pipeline and a concrete pipeline can be selected according to different use environments and different flow velocity and pressure of water flow. For common plastic-coated composite steel pipes, common anti-corrosion steel pipes, common heat-insulating steel pipes and the like for water supply and drainage pipelines in cities, the inner walls of the steel pipes are usually coated with various anti-corrosion materials such as tpep, hot-melt epoxy powder, cement mortar lining and the like, so that the quality of the pipelines needs to be judged according to the service life and the corrosion degree of the pipelines. For this, the best method of detection is by in-situ microscopy (metallographic microscopy). However, the field microscope is usually only used for detecting the quality of the outer surface of the pipeline, because the inner wall of the pipeline is difficult to support and adjust, which results in difficult focal length adjustment and poor detection effect. The inventor provides a detection device which is convenient for detecting the corrosion degree and quality of the inner wall of the pipeline on site to solve the problems.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the technical defects and provide the pipeline quality detection device for the hydraulic engineering, which is convenient for field detection and has excellent detection effect.

The design provides a pipeline quality detection device for hydraulic engineering, which comprises a walking vehicle, an electric rotating platform and a distance adjusting mechanism;

the walking vehicle comprises a columnar vehicle frame and a plurality of pairs of walking wheels which are radially arranged on the peripheral side of the vehicle frame;

the electric rotating platform is fixedly arranged at the front end of the walking vehicle and comprises a rotating disk driven to rotate by a motor, and a rotating shaft of the rotating disk is coaxial with the vehicle frame;

the distance adjusting mechanism comprises a base, a coarse adjusting sliding seat, a fine adjusting sliding seat and a distance adjusting motor which are fixedly arranged on a rotary table, wherein a rack is fixedly arranged on the base, the coarse adjusting sliding seat is connected with the base in a sliding mode in the radial direction of the rotary table in a pivoting mode, a transmission shaft is arranged on the rear portion of the coarse adjusting sliding seat in a pivoting mode, a gear is arranged on the right side of the coarse adjusting sliding seat in a pivoting mode, an elastic reset element is arranged at the rear end of the rear portion of the coarse adjusting sliding seat in a pivoting mode, the gear is meshed with the rack, the left end of the transmission shaft is connected with the distance adjusting motor, a cam is fixedly arranged in the middle of the coarse adjusting sliding seat, the right end of the fine adjusting sliding seat is connected with the gear through a coupler, the fine adjusting sliding seat is connected with the coarse adjusting sliding seat in a sliding mode in the radial direction of the rotary table, a microscope fixing ring is fixedly arranged at the front end of the fine adjusting sliding seat, the elastic reset element is used for enabling the fine adjusting sliding seat to move backwards and fit with the cam, the coupler comprises a pair of concentric transmission discs which are respectively arranged on the transmission shaft and the gear, and the transmission discs which are respectively are provided with bulges which can be mutually combined with each other face opposite to transmit power.

Furthermore, the axial direction of the transmission shaft is perpendicular to the movement direction of the coarse adjustment sliding seat.

Furthermore, the two bulges are both in a fan shape or a fan ring shape, and the angular arc degree of the two bulges is less than pi/4.

Further, the coarse adjustment slide carriage is connected with the base through a linear rail.

Further, the rear end of fine setting slide is fixed with many direction circular rails, through direction circular rail with coarse adjusting slide sliding connection, the rear end of direction circular rail is fixed with the limiting plate, elasticity reset element is the spring of cover establishing on the circular rail and butt limiting plate and coarse adjusting slide.

Furthermore, the axis department of frame is equipped with the double-screw bolt, the walking wheel is articulated through parallelogram connecting rod structure the double-screw bolt, be equipped with on the double-screw bolt and be used for the locking parallelogram connecting rod structure locking piece that warp.

Furthermore, the distance adjusting motor is a stepping motor, and the output end of the distance adjusting motor is also provided with a speed reducer.

After adopting the structure, compared with the prior art, the invention has the advantages that:

1. the walking vehicle and the distance adjusting mechanism which can stably move in the pipeline are arranged, so that the metallographic phase limiting mirror can rotate along the axis of the pipeline in the pipeline and perform quality detection on the inner wall, and the field detection can be performed smoothly without manual climbing;

2. through special roll adjustment structure, can carry out the coarse and fine adjustment of on-the-spot spacing mirror, not only can make on-the-spot microscope's image quality improve like this, coarse adjusting and fine setting only use a motor to control moreover, and whole control is simple and weight alleviates by a wide margin, consequently portable and removal are applicable to the site environment.

Drawings

Fig. 1 is a first perspective view of a pipeline quality detection device for hydraulic engineering according to the present invention.

Fig. 2 is a front schematic view of a pipeline quality detection device for hydraulic engineering.

Fig. 3 is a schematic perspective view of a walking vehicle of the pipeline quality detection device for hydraulic engineering.

Fig. 4 is a schematic perspective view of a distance adjusting mechanism of the pipeline quality detection device for hydraulic engineering.

Fig. 5 is a schematic perspective view of a coarse adjustment slide seat and a fine adjustment slide seat of the pipeline quality detection device for hydraulic engineering.

Fig. 6 is a schematic front view of a coarse adjustment sliding seat and a fine adjustment sliding seat of the pipeline quality detection device for hydraulic engineering.

Fig. 7 is a coupling combination schematic diagram of the pipe quality detection device for hydraulic engineering.

Fig. 8 is a schematic perspective view of a transmission disc of the pipeline quality detection device for hydraulic engineering.

Fig. 9 is a schematic use diagram of a transmission disc of the pipeline quality detection device for hydraulic engineering.

As shown in the figure: 1. the device comprises a walking vehicle, 2, an electric rotating platform, 3, a distance adjusting mechanism, 4, a vehicle frame, 5, walking wheels, 6, a rotating disc, 7, a base, 8, a coarse adjusting sliding seat, 9, a fine adjusting sliding seat, 10, a distance adjusting motor, 11, a rack, 12, a transmission shaft, 13, a gear, 14, an elastic reset element, 15, a coupler, 16, a cam, 17, a transmission disc, 18, a protrusion, 19, a linear track, 20, a guide circular rail, 21, a limiting plate, 22, a stud, 23, a mounting plate, 24, a wheel body, 25, a wheel seat, 26, a sleeve, 27, a motor mounting seat, 28, a U-shaped seat, 29, a locking piece, 30 and a microscope fixing ring.

Detailed Description

The following description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, which is further described with reference to the accompanying drawings and embodiments.

Example 1, see figures 1-9:

this embodiment provides a pipeline quality testing device for hydraulic engineering, including walking car 1, electric rotating platform 2 and roll adjustment mechanism 3.

Referring to fig. 1, 2, 3 and 9, the walking vehicle 1 is used for walking on the inner wall of a pipeline and comprises a vehicle frame 4 and three pairs of walking wheels 5. Specifically, the frame 4 is an isosceles triangular prism frame structure, the front end of which is provided with an installation plate 23, and the axis of which is fixedly provided with a stud 22. The pair of travelling wheels 5 comprises two wheel bodies 24 and a wheel seat 25, and the three pairs of travelling wheels 5 are arranged at an included angle interval of 120 degrees, so that the frame 4 can be coaxially arranged in the pipeline for travelling. Meanwhile, for most use environments, the travelling wheels 5 need to have a certain adjusting range to be better adapted to the field environment. In this respect, a parallelogram link structure is used in this solution. As can be seen from the attached drawings, in the parallelogram link structure, the stud 22 is used as a link, the wheel seat 25 is used as a link, and two ends of the wheel seat 25 are hinged with the stud 22 through a pair of links to form the parallelogram structure. For the adjustment, a locking element 29 is provided on the stud 22 to lock the deformation of the parallelogram linkage. Specifically, the stud 22 is provided with a sleeve 26, the sleeve 26 is hinged to the front connecting rod through three connecting rods, and at the moment, the sleeve 26 is moved to drive the parallelogram connecting rod structure to deform, so that diameter change is realized. Two nuts are used for the locking member 29 to lock the position of the sleeve 26.

The electric rotating platform 2 is fixedly arranged on a mounting seat at the front end of the walking vehicle 1, and the electric rotating platform 2 is common equipment and comprises a rotating disc 6 driven by a motor to rotate. In the embodiment, a structural form that a motor-driven speed reducer is used as a power source and transmission is carried out through a gear ring is adopted. The electric rotary table 2 is of many kinds, and in some embodiments, other types of electric rotary tables 2 may be used. It can be seen that the turntable 6 in the scheme is coaxially arranged with the vehicle frame 4 and the detected pipeline, which brings convenience to the use of an on-site microscope.

The normal use of the on-site limiting mirror can be realized by arranging a mechanism capable of radially adjusting the distance on the basis of the electric rotating table 2, but the process is different from the manual adjustment by screwing a screw rod, certain requirements are required on the moving precision and the moving speed of a lens in a pipeline, and the distance adjusting mechanism 3 is arranged for the purpose. Referring to fig. 4, 5 and 6, the distance adjusting mechanism 3 includes a base 7, a rough adjusting slide 8, a fine adjusting slide 9 and a distance adjusting motor 10. Wherein, the base 7 is fixedly arranged on the rotating disc 6 and extends along the radial direction of the rotating disc 6. The base 7 is provided with a linear track 19 and a rack 11, the linear track 19 adopts a double-row dovetail groove form, and the guiding direction of the linear track is the radial direction of the rotary table 6. The rack 11 is parallel to the linear track 19. The coarse adjustment slide 8 is connected with the base 7 in a sliding way through a dovetail slide block. Referring to fig. 5 and 6, the coarse adjustment base 7 can be divided into a motor mounting seat 27 on the left side, a transmission shaft 12 on the lower part, and a U-shaped seat 28 on the right side for mounting the gear 13. The fine adjustment sliding seat 9 is connected with the coarse adjustment sliding seat 8 from top to bottom, a microscope fixing ring 30 is arranged at the front end of the fine adjustment sliding seat 9, two guide circular rails 20 are fixedly arranged at the rear end of the fine adjustment sliding seat 9, the guide circular rails 20 are connected with the coarse adjustment sliding seat 8 in a sliding mode, a limiting plate 21 is fixedly arranged at the rear end of each guide circular rail 20, and the guide circular rails 20 are sleeved with springs which abut against the limiting plate 21 and the coarse adjustment sliding seat 8 to serve as elastic reset elements 14. It can be seen that the fine adjustment slide 9 is adjusted in the same direction as the coarse adjustment slide 8, but in this case it is used for fine adjustment, which requires a different transmission accuracy from the coarse adjustment slide 8. In the scheme, the function is completed by matching the cam 16 with the coupling 15 and the distance adjusting motor 10. The pitch-adjusting motor 10 is in the form of a stepping motor and a reducer, and is in transmission connection with a transmission shaft 12. A cam 16 is fixedly arranged in the middle of the transmission shaft 12, and due to the existence of the elastic reset element 14, the fine adjustment slide 9 abuts against the cam 16, at the moment, the fine adjustment slide 9 can slide along the curved surface of the cam 16 through the rotation of the transmission shaft 12, at the moment, the fine adjustment mode is adopted, and the maximum amplitude of the variable pitch is the fall distance generated by the curved surface of the cam 16. The structure of the coupler 15 can refer to fig. 7 and 8, the coupler 15 includes a pair of concentric transmission discs 17 respectively disposed on the transmission shaft 12 and the gear 13, two of the transmission discs 17 are respectively provided with a protrusion 18 capable of mutually combining and transmitting power on opposite surfaces thereof, the two protrusions 18 are both fan-shaped, and the angle radian thereof is pi/12, that is, the angle is 15 °. When the two protrusions 18 meet, the two transmission discs 17 are able to perform a normal power transmission, in this case a coarse adjustment. However, when the pitch motor 10 rotates in reverse, the two protrusions 18 are disengaged and idle (no power transmission is performed) within the range of 345 ° of rotation of the transmission disc 17, and the cam 16 performs a fine adjustment function. Therefore, two distance adjusting forms can be provided when distance adjustment is carried out, dirt can be conveniently close to the pipe wall and can be quickly kept away from the pipe wall in the pipeline, and the electric rotary table 2 can be conveniently adaptive to defocus caused by pipe diameter change when rotating. And only one stepping motor is used for adjusting the distance, so that the weight and the control difficulty are greatly reduced.

When the microscope is used specifically, the on-site microscope is mounted on the microscope fixing ring 30 and locked by the jackscrew. Usually, the front end of the on-site microscope is provided with a supplementary lighting equal ring, a light source can be arranged on the fine adjustment slide seat 9 or the coarse adjustment slide seat 8, and the image information fed back by the on-site microscope is transmitted back through the VGA data line. The carriage 1 used in this embodiment is passive and thus can be moved by traction. In some embodiments, a power device may be added to the wheel body 24 to realize active walking.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should be able to conceive of the present invention without creative design of the similar structural modes and embodiments without departing from the spirit of the present invention, and all such modifications should fall within the protection scope of the present invention.

Claims

1. The utility model provides a pipeline quality detection device for hydraulic engineering which characterized in that: comprises a walking vehicle (1), an electric rotating platform (2) and a distance adjusting mechanism (3);

the walking vehicle (1) comprises a columnar vehicle frame (4) and a plurality of pairs of walking wheels (5) which are radially arranged on the peripheral side of the vehicle frame (4);

the electric rotating platform (2) is fixedly arranged at the front end of the walking vehicle (1) and comprises a rotating disk (6) driven by a motor to rotate, and a rotating shaft of the rotating disk (6) is coaxial with the vehicle frame (4);

the distance adjusting mechanism (3) comprises a base (7) fixedly arranged on the rotary disc (6), a rough adjusting slide seat (8), a fine adjusting slide seat (9) and a distance adjusting motor (10), wherein, a rack (11) is fixedly arranged on the base (7), the coarse adjustment sliding seat (8) is connected with the base (7) in a sliding way along the radial direction of the turntable (6), a transmission shaft (12) is pivotally arranged at the rear part of the transmission mechanism, a gear (13) is pivotally arranged at the right side, an elastic reset element (14) is arranged at the rear end, the gear (13) is meshed with the rack (11), the left end of the transmission shaft (12) is in transmission connection with the distance adjusting motor (10), the middle part of the transmission shaft is fixedly provided with a cam (16), the right end of the transmission shaft is connected with the gear (13) through a coupler (15), the fine adjustment sliding seat (9) is connected with the coarse adjustment sliding seat (8) in a sliding manner along the radial direction of the rotary disc (6), the front end of the micro-microscope slide seat is fixedly provided with a microscope fixing ring (30), the elastic reset element (14) is used for enabling the micro-adjustment slide seat (9) to move backwards and be attached to the cam (16), the shaft coupling (15) include a pair of concentric and set up transmission dish (17) on transmission shaft (12) and gear (13) respectively, two transmission dish (17) are equipped with one can the interconversion and transmit the protruding (18) of power respectively in its opposite face.

2. The pipeline quality detection device for the hydraulic engineering according to claim 1, characterized in that: the axial direction of the transmission shaft (12) is vertical to the movement direction of the coarse adjustment sliding seat (8).

3. The pipeline quality detection device for the hydraulic engineering according to claim 1, characterized in that: the two bulges (18) are both in a fan shape or a fan ring shape, and the angular arc degree of the two bulges is less than pi/4.

4. The pipeline quality detection device for the hydraulic engineering according to claim 1, characterized in that: the coarse adjustment slide carriage (8) is connected with the base (7) through a linear rail (19).

5. The pipeline quality detection device for the hydraulic engineering according to claim 4, characterized in that: the rear end of fine setting slide (9) is fixed and is equipped with many direction circular rails (20), through direction circular rails (20) with coarse adjusting slide (8) sliding connection, the rear end of direction circular rails (20) is fixed and is equipped with limiting plate (21), elasticity reset element (14) are established on the circular rails and are propped the spring of limiting plate (21) and coarse adjusting slide (8) for the cover.

6. The pipeline quality detection device for the hydraulic engineering according to claim 1, characterized in that: the axis department of frame (4) is equipped with double-screw bolt (22), walking wheel (5) are articulated through parallelogram link structure double-screw bolt (22), be equipped with on double-screw bolt (22) and be used for the locking piece (29) that parallelogram link structure warp.

7. The pipeline quality detection device for the hydraulic engineering according to claim 1, characterized in that: the distance adjusting motor (10) is a stepping motor, and the output end of the distance adjusting motor is also provided with a speed reducer.