Stress analysis and detection auxiliary device for boiler pipeline

Abstract

The utility model is applicable to the technical field of pipeline detection, and provides a stress analysis and detection auxiliary device for a boiler pipeline, which comprises an auxiliary assembly on which a positioning assembly slides; the auxiliary assembly comprises a detection piece and a sliding lifting piece; the positioning assembly comprises a displacement part and two clamping parts, the displacement part is in sliding fit with the interior of the detection part, and the two clamping parts are in relative sliding fit with the interior of the displacement part. The technical problems that clamping positioning and coaxial adjustment between a boiler pipeline to be detected and a stress detection head are generally carried out separately, so that redundant operation steps exist in the detection process, and certain inconvenience is brought to workers are solved. The technical effects that the boiler pipeline to be detected can be coaxially adjusted while clamping and positioning are carried out, and the influence on the later detection process is avoided are achieved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection technology, and more specifically, it relates to an auxiliary device for stress analysis and inspection of boiler pipelines. Background Technology

[0002] Boiler pipes are pipes made of alloys or metals, and are generally used for steam and water transportation or raw material transportation in boilers. During the production and processing of boiler pipes, the influence mechanism of the positive pressure and friction during the cold drawing process on the axial and circumferential residual stress of the product is important. The residual stress of boiler pipes has a great influence on the dimensional accuracy of the pipes, so it is necessary to test them.

[0003] Currently, most boiler pipeline stress analysis and testing auxiliary devices on the market have the following technical problems when testing boiler pipelines:

[0004] Existing auxiliary devices for stress analysis and testing of boiler pipes typically perform clamping and positioning, as well as coaxial adjustment between the boiler pipe to be tested and the stress detection head, separately when conducting stress analysis on boiler pipes. This results in redundant operating steps during the testing process, causing inconvenience to the staff. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an auxiliary device for stress analysis and testing of boiler pipes that can simultaneously perform coaxial adjustment of the boiler pipe to be tested during clamping and positioning, so that the boiler pipe to be tested and the stress detection head are in a relatively axial position after clamping and positioning, thus avoiding any impact on the subsequent testing process.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A stress analysis and testing auxiliary device for boiler pipelines includes an auxiliary component, on which a positioning component slides.

[0008] The auxiliary components include a detection element and a sliding lifting element.

[0009] The positioning assembly includes a displacement member that slides inside the detection member and two clamping members that slide oppositely inside the displacement member.

[0010] The testing component includes a testing platform with an internal groove extending through its top. Two symmetrical inclined baffles are fixed to the top of the testing platform, and two symmetrical first side plates are fixed between the two inclined baffles on the top of the testing platform. Each of the two first side plates has a first inclined groove extending through its side.

[0011] Both of the first inclined grooves are in sliding engagement with the positioning component.

[0012] The present invention is further configured such that: the lifting component includes a lifting plate that is slidably fitted inside the testing table, and two symmetrical second side plates are fixed on the side of the lifting plate, and a second inclined groove is provided through the side of each of the two second side plates.

[0013] The displacement component includes an L-shaped displacement plate, and two levers are fixed on opposite sides of the L-shaped displacement plate. The two levers are respectively slidably engaged with two second inclined grooves.

[0014] The present invention is further configured such that: a U-shaped plate is fixed to the top of the L-shaped displacement plate, and inclined sliders are fixed to the two outer sides of the U-shaped plate; a partition is fixed to the opposite side of the two inclined sliders; and the two inclined sliders are respectively slidably engaged with the two first inclined grooves.

[0015] The top of each U-shaped plate has two symmetrical rectangular grooves, and the two outer sides of the U-shaped plate above the partition have smooth holes.

[0016] The present invention is further configured such that: the clamping member includes a T-shaped sliding plate that slides inside the rectangular groove, the top of the T-shaped sliding plate is fixed with a vertical plate at the top of the U-shaped plate, an arc-shaped clamping plate is fixed on one side of the vertical plate, and a flexible rubber plate is fixed on the inner wall of the arc-shaped clamping plate.

[0017] A sliding rod is fixed to the opposite side of the vertical plate and slidably fitted inside a round hole. The end of the sliding rod is dome-shaped. An elastic spring is fixed between the vertical plate and the U-shaped plate and fitted onto the sliding rod.

[0018] The present invention is further configured such that: a threaded hole is provided through the top of the lifting plate, and a guide hole is provided through the top of the lifting plate.

[0019] A drive motor is fixed at the bottom of the testing platform. A lifting screw that is threadedly connected to the output shaft of the drive motor is fixed to the output shaft of the drive motor. A guide rod that slides with the guide hole is fixed at the bottom of the testing platform away from the drive motor.

[0020] The present invention is further configured such that: an extension vertical plate is fixed to the top of the outer side of the testing platform, a load-bearing plate is fixed to the top of the extension vertical plate, a testing machine is fixed to the top of the load-bearing plate, a telescopic cylinder is fixed to the outer side of the testing machine, and a stress detection head electrically connected to the testing machine is fixed to the telescopic end of the telescopic cylinder.

[0021] The advantages of this utility model are: 1. By moving the lifting plate vertically downward, the two clamping parts arranged opposite each other move in a straight line between the U-shaped plates until the two flexible rubber plates in the clamping parts are pressed and pressed against the outer surface of the boiler pipe to be tested. The vertical downward movement of the lifting plate ends, thereby fixing the boiler pipe to be tested before stress testing, avoiding shaking of the boiler pipe to be tested during stress testing, and improving the testing effect.

[0022] 2. This utility model uses the vertical downward movement of the lifting plate to clamp and position the boiler pipe to be tested and the stress detection head at a relatively axial position. This clamps and positions the boiler pipe to be tested before stress testing, and simultaneously adjusts the boiler pipe to be tested to be coaxial during the clamping and positioning process. This ensures that the testing equipment and the boiler pipe to be tested are in a relatively concentric position, reducing the adjustment steps before testing and bringing certain convenience to the staff. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an auxiliary device for stress analysis and testing of boiler pipes according to the present invention.

[0024] Figure 2 This is a schematic diagram of the structure of the auxiliary component of this utility model.

[0025] Figure 3 This is a schematic diagram of the positioning component of this utility model.

[0026] Figure 4 This is a schematic diagram of the structure of the detection component of this utility model.

[0027] Figure 5 This is a top view of the testing component of this utility model.

[0028] Figure 6 This is a front view of the testing component of this utility model.

[0029] Figure 7 This is a structural schematic diagram of the lifting component of this utility model.

[0030] Figure 8 This is a schematic diagram of the displacement component of this utility model.

[0031] Figure 9 This is a schematic diagram of the structure of the clamping component of this utility model.

[0032] Figure 10 This is a top view of the clamping component of this utility model.

[0033] In the diagram: 1. Auxiliary component; 2. Positioning component; 3. Detection component; 4. Lifting component; 5. Displacement component; 6. Clamping component; 301. Detection table; 302. Built-in groove; 303. Inclined baffle; 304. First side plate; 305. First inclined groove; 306. Drive motor; 307. Lifting screw; 308. Guide vertical rod; 309. Extension vertical plate; 310. Load-bearing plate; 311. Detection machine; 312. Telescopic cylinder; 313. Stress detector Probe; 401, Lifting plate; 402, Second side plate; 403, Second inclined groove; 404, Threaded hole; 405, Guide hole; 501, L-shaped displacement plate; 502, Toggle rod; 503, U-shaped plate; 504, Inclined slider; 505, Partition plate; 506, Rectangular groove; 507, Smooth hole; 601, T-shaped sliding plate; 602, Vertical plate; 603, Arc-shaped clamping plate; 604, Flexible rubber plate; 605, Slide rod; 606, Elastic spring. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0036] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0037] Example 1, please refer to Figure 1-10 The present invention provides the following technical solution:

[0038] Specifically, it refers to a stress analysis and testing auxiliary device for boiler pipelines, including an auxiliary component 1, on which a positioning component 2 slides; the auxiliary component 1 includes a testing element 3 and a sliding lifting element 4; the positioning component 2 includes a displacement element 5 that slides inside the testing element 3 and two clamping elements 6 that slide relative to each other inside the displacement element 5; the testing element 3 includes a testing platform 301, with an internal groove 302 extending through its outer top, and two symmetrical inclined baffles 303 fixed to the outer top of the testing platform 301; two symmetrical first side plates 304 fixed between the two inclined baffles 303 on the outer top of the testing platform 301, and first inclined grooves 305 extending through the sides of both first side plates 304; both first inclined grooves 305 slide in cooperation with the positioning component 2.

[0039] Further, the lifting component 4 includes a lifting plate 401 that slides inside the detection table 301. Two symmetrical second side plates 402 are fixed to the sides of the lifting plate 401, and each of the two second side plates 402 has a second inclined groove 403 extending through its sides. The displacement component 5 includes an L-shaped displacement plate 501. Two levers 502 are fixed to opposite sides of the L-shaped displacement plate 501, and the two levers 502 slide in cooperation with the two second inclined grooves 403 respectively. A U-shaped plate 503 is fixed to the top of the L-shaped displacement plate 501. Inclined sliders 504 are fixed to opposite outer sides of the U-shaped plate 503. A partition plate 505 is fixed to the opposite side of each of the two inclined sliders 504, and the two inclined sliders 504 slide in cooperation with the two first inclined grooves 305 respectively. The U-shaped plate 503... The top of each U-shaped plate 503 has two symmetrical rectangular slots 506 through it. The two outer sides of the U-shaped plate 503 above the partition plate 505 have smooth holes 507 through it. The clamping member 6 includes a T-shaped sliding plate 601 that slides inside the rectangular slots 506. The top of the T-shaped sliding plate 601 is fixed to the top of the U-shaped plate 503. An arc-shaped clamping plate 603 is fixed to one side of the vertical plate 602. A flexible rubber plate 604 is fixed to the inner wall of the arc-shaped clamping plate 603. A sliding rod 605 that slides inside the smooth hole 507 is fixed to the opposite side of the vertical plate 602. The end of the sliding rod 605 is dome-shaped. An elastic spring 606 that is sleeved on the sliding rod 605 is fixed between the vertical plate 602 and the U-shaped plate 503.

[0040] The specific application of this embodiment is as follows: Before stress testing the boiler pipe to be tested, the boiler pipe to be tested is first placed between the flexible rubber plates 604 fixed to the inner walls of the two arc-shaped clamps 603. Then, by the vertical downward movement of the lifting plate 401, the two second side plates 402 fixed to the side of the lifting plate 401 are driven to move downward, so that the sliding engagement of the two levers 502 slides in the two second inclined grooves 403 respectively, causing the two inclined sliders 504 fixed to the two outer sides of the U-shaped plate 503 to move obliquely downward in the two first inclined grooves 305 respectively. When the two inclined sliders 504 fixed to the two outer sides of the U-shaped plate 503 move obliquely downward in the two first inclined grooves 305 respectively, the rounded top parts of the two sliding rods 605 fixed to the other side of the two vertical plates 602 respectively slide in contact between the two inclined baffles 303, and thus combine and fix. The elastic force of the elastic spring 606 connecting the vertical plate 602 and the U-shaped plate 503, and the sliding cooperation between the two T-shaped sliding plates 601 and the two rectangular grooves 506 respectively, cause the two clamping members 6 arranged opposite to each other to move in a straight line between the U-shaped plates 503 until the two flexible rubber plates 604 in the two clamping members 6 are pressed and pressed against the outer surface of the boiler pipe to be tested. Then the vertical downward movement of the lifting plate 401 ends. This clamping and positioning of the boiler pipe to be tested before stress testing is performed. At the same time, through the clamping and positioning process of the boiler pipe to be tested, the boiler pipe to be tested is simultaneously adjusted coaxially so that the testing equipment can be in a relatively concentric position with the boiler pipe to be tested after clamping and positioning (the testing equipment and the stress testing head 313 in Embodiment 2 have the same structure). This reduces the adjustment steps before testing and brings certain convenience to the staff.

[0041] Example 2, please refer to Figure 1-10 This second embodiment is an improvement on the first embodiment as follows: Specifically, a threaded hole 404 is provided through the top of the lifting plate 401, and a guide hole 405 is provided through the top of the lifting plate 401; a drive motor 306 is fixed inside the bottom of the testing platform 301, and a lifting screw 307 is fixed to the output shaft of the drive motor 306 and is threadedly connected to the threaded hole 404; a guide vertical rod 308 is fixed to the side of the bottom of the testing platform 301 away from the drive motor 306 and is slidably engaged with the guide hole 405; an extension vertical plate 309 is fixed to the top of the testing platform 301, a load-bearing plate 310 is fixed to the top of the extension vertical plate 309, a testing machine 311 is fixed to the top of the load-bearing plate 310, a telescopic cylinder 312 is fixed to the outer side of the testing machine 311, and a stress detection head 313 electrically connected to the testing machine 311 is fixed to the telescopic end of the telescopic cylinder 312.

[0042] A specific application of this embodiment is as follows: During the use of this device, the boiler pipe to be tested is placed inside the device in advance, and it is clamped, positioned, and its oblique height is adjusted in sequence so that the stress detection head 313 and the clamped and positioned boiler pipe to be tested are in a relatively coaxial position. At this time, the telescopic cylinder 312 is started, which drives the stress detection head 313 fixed at the telescopic end of the telescopic cylinder 312 to move closer to the inside of the clamped and positioned boiler pipe to be tested in a synchronous manner, so that the stress detection head 313 can be used to perform stress detection on the clamped, positioned, and obliquely height adjusted boiler pipe later (the specific usage process and connection relationship between the stress detection head 313 and the detection machine 311 are disclosed in a Chinese utility model patent application with publication number: CN218545969U, which is the prior art and will not be elaborated here).

[0043] Before stress testing, and during the clamping, positioning, and tilt height adjustment of the boiler pipe to be tested, the drive motor 306 is started, which drives the lifting screw 307 fixed to the output shaft of the drive motor 306 to rotate synchronously inside the threaded hole 404 through the top of the lifting plate 401. Through the sliding cooperation between the guide hole 405 through the top of the lifting plate 401 and the guide rod 308, the lifting plate 401 can perform a linear lifting motion in the vertical direction. This provides a power source for the tilt height adjustment of the boiler pipe to be tested after clamping and positioning, which facilitates the subsequent stress testing of the boiler pipe to be tested.

[0044] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0048] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A stress analysis detection auxiliary device for boiler piping, comprising an auxiliary assembly (1), characterized in that: The auxiliary assembly (1) is slid with a positioning assembly (2); The auxiliary assembly (1) comprises a detection piece (3) and a lifting piece (4) which slides; The positioning assembly (2) comprises a displacement piece (5) which is slidingly fitted inside the detection piece (3), and two clamping pieces (6) which are slidingly fitted inside the displacement piece (5); The detection piece (3) comprises a detection table (301), a built-in groove (302) is formed through the outer top of the detection table (301), the outer top of the detection table (301) is fixed with two symmetrical inclined baffles (303), the outer top of the detection table (301) is fixed with two symmetrical first side plates (304) between the two inclined baffles (303), and the first side plates (304) are formed through the outer top of the detection table (301). First inclined grooves (305) are formed through the outer top of the detection table (301). Both the first inclined grooves (305) are slidingly fitted with the positioning assembly (2).

2. A stress analysis detection auxiliary device for a boiler pipe according to claim 1, characterized in that: The lifting piece (4) comprises a lifting plate (401) which is slidingly fitted inside the detection table (301), the lifting plate (401) is fixed with two symmetrical second side plates (402) on the side, and the second side plates (402) are formed through the outer top of the detection table (301). Second inclined grooves (403) are formed through the outer top of the detection table (301). The displacement piece (5) comprises an L-shaped displacement plate (501), the L-shaped displacement plate (501) is fixed with a lever (502) on the opposite side, and the two levers (502) are slidingly fitted with the two second inclined grooves (403) respectively.

3. A stress analysis detection auxiliary device for a boiler pipe according to claim 2, characterized in that: The L-shaped displacement plate (501) is fixed with a U-shaped plate (503) on the top, the U-shaped plate (503) is fixed with an inclined sliding block (504) on the opposite outer side, the inclined sliding block (504) is fixed with a partition plate (505) on the opposite side, and the inclined sliding block (504) is slidingly fitted with the first inclined groove (305) respectively. The U-shaped plate (503) is formed through the outer top of the detection table (301). Two symmetrical rectangular grooves (506) are formed through the outer top of the detection table (301). The U-shaped plate (503) is formed through the outer top of the detection table (301). The U-shaped plate (503) is formed through the outer top of the detection table (301).

4. The stress analysis detection auxiliary device for a boiler pipe according to claim 3, characterized in that: The clamping piece (6) comprises a T-shaped sliding plate (601) which is slidingly fitted inside the rectangular groove (506), the T-shaped sliding plate (601) is fixed with a vertical plate (602) on the top, the vertical plate (602) is fixed with an arc-shaped clamping plate (603) on one side, and the arc-shaped clamping plate (603) is fixed with a flexible rubber plate (604) on the inner wall. The vertical plate (602) is fixed with a sliding rod (605) which is slidingly fitted inside the circular sliding hole (507) on the opposite side, the sliding rod (605) is provided in a circular top at the end, and the vertical plate (602) and the U-shaped plate (503) are fixed with an elastic spring (606) which is sleeved and fitted on the sliding rod (605).

5. A stress analysis detection auxiliary device for a boiler pipe according to claim 4, characterized in that: The lifting plate (401) is formed through the outer top of the detection table (301). A threaded hole (404) is formed through the outer top of the detection table (301). A guide hole (405) is formed through the outer top of the detection table (301). The bottom of the detection table (301) is fixed with a driving motor (306), the output shaft of the driving motor (306) is fixed with a lifting lead screw (307) which is threadedly connected with a threaded hole (404), and the bottom of the detection table (301) is fixed with a guide vertical rod (308) which is slidingly matched with a guide hole (405) away from the side of the driving motor (306).

6. A stress analysis detection auxiliary device for a boiler pipe according to claim 5, characterized in that: The top of the detection table (301) is fixed with an extending vertical plate (309), the top of the extending vertical plate (309) is fixed with a bearing plate (310), the top of the bearing plate (310) is fixed with a detection machine (311), the outer side of the detection machine (311) is fixed with a telescopic air cylinder (312), and the telescopic end of the telescopic air cylinder (312) is fixed with a stress detection head (313) which is electrically connected with the detection machine (311).

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