A flexible positioning and fastening method for power plant pyrotechnic testing

Abstract

The application discloses a test piece mounting method, relates to the test piece mounting technical field, and aims to solve the problem that in the prior art, it is difficult to ensure that the mounting posture, mounting position, horizontal direction and the like of a test piece meet test requirements in the test piece mounting process. The method comprises the following steps: in the process of mounting the test piece, the position of a bearing piece in a track is adjusted multiple times in cooperation with the descent of the test piece; and the test piece is placed on the bearing piece. In the process of descending the test piece, the axis of the test piece is kept consistent with the center of the circle where the bearing piece is located, the mounting posture of the test piece is ensured, and the test piece can be mounted quickly and accurately.

Description

Technical Field

[0001] This invention relates to the field of test specimen installation technology, and more particularly to a method for installing test specimens. Background Technology

[0002] Before testing, the test specimen needs to be positioned and installed to ensure that the installation posture, position, and horizontal direction meet the test requirements. This is especially important for many precision tests, which have even higher requirements for the installation of the test specimen.

[0003] Therefore, how to provide a method that can be quickly installed, ensures that the final test posture of the test piece meets the test requirements, and avoids circuit interference is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] Based on the above analysis, the present invention aims to provide a method for installing test specimens to solve the problems of repeated adjustments to the installation posture of test specimens, manual cable management, and cumbersome installation process in the prior art.

[0005] The objective of this invention is mainly achieved through the following technical solutions:

[0006] This invention provides a method for installing a test specimen, comprising:

[0007] Step 1: During the installation of the test specimen, adjust the relative position of the load-bearing component on the mounting platform and the test specimen multiple times to coordinate with the descent of the test specimen;

[0008] Step 2: Place the test piece onto the load-bearing component, fix the test piece, and complete the installation.

[0009] Furthermore, prior to step one, the method includes: adjusting the height of the upper adjusting member of the load-bearing component to reduce the distance between the test piece and the mounting platform.

[0010] Furthermore, the step of repeatedly adjusting the relative position of the load-bearing component and the test piece on the mounting platform includes a first position adjustment, specifically:

[0011] Before the test piece is installed, the position of the load-bearing component on the mounting platform is adjusted for the first time, and the load-bearing component can slide freely on the preset track on the mounting platform.

[0012] Furthermore, the step of repeatedly adjusting the relative position of the load-bearing component and the test piece on the mounting platform also includes a second position adjustment, specifically: when the test piece descends to the first fixed position, the load-bearing component is moved to one end of the track near the edge of the mounting platform.

[0013] Furthermore, the step of repeatedly adjusting the relative position of the load-bearing component and the test piece on the mounting platform also includes a third position adjustment, specifically: when the test piece is lowered to a predetermined distance from the upper end face of the load-bearing component, the position of the load-bearing component on the mounting platform is adjusted for the third time, so that the circumscribed circle of the multiple load-bearing components coincides axially with the lower end face of the test piece.

[0014] Furthermore, the predetermined distance is 30mm to 50mm.

[0015] Furthermore, step two also includes adjusting the position of the adjusting member on the load-bearing member upwards after the test piece is placed against the load-bearing member, so that the upper end face of the adjusting member abuts against the lower end face of the test piece.

[0016] Furthermore, it also includes step three, the first axial positioning of the test piece at the second fixed position;

[0017] The second fixed position is located between the load-bearing component and the first fixed position.

[0018] Furthermore, it also includes step four, which involves a second axial positioning of the test piece at the first fixed position; the first fixed position corresponds to the upper part of the test piece.

[0019] Furthermore, in step two, when the test piece is placed against the load-bearing component, the first mark on the test piece corresponds to the second mark on the mounting platform.

[0020] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0021] (1) The installation method of the test piece provided by the present invention, in conjunction with the descent of the test piece, adjusts the position of the load-bearing component in the track to ensure that the load-bearing component does not affect the descent of the test piece, and the load-bearing component divides the mounting platform into multiple areas to facilitate cable laying. When the test piece is placed on the load-bearing component, the load-bearing component is fixed, and the test piece is axially fixed twice at different heights to ensure the accuracy of the installation position and the accuracy of the axial fixing posture of the test piece.

[0022] (2) The installation method of the test piece provided by the present invention is simple to operate. The fixed position of the load-bearing component, the radial position of the wedge block and the radial position of the fastening stud can all be adjusted according to the size of the test piece to meet the installation of test pieces of different sizes.

[0023] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0025] Figure 1 An installation flowchart illustrating the installation method for the test specimen provided in this embodiment of the invention;

[0026] Figure 2 This is a first structural schematic diagram of the test piece mounting platform for the installation method in the usage embodiment of the present invention;

[0027] Figure 3 This is a second structural schematic diagram of the test piece mounting platform for the installation method in the usage embodiment provided by the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the guide component in the test piece mounting platform of the installation method provided in the embodiment of the present invention;

[0029] Figure 5 This is a third structural schematic diagram of the test piece mounting platform for the installation method in the usage embodiment provided by the present invention;

[0030] Figure 6 This is a fourth structural schematic diagram of the test piece mounting platform for the installation method in the usage embodiment provided by the present invention;

[0031] Figure 7 This is a schematic diagram of the synchronous adjustment component in the test piece mounting platform of the installation method provided in the embodiment of the present invention.

[0032] Figure label:

[0033] 1-Mounting platform; 2-Boss; 3-Mounting bracket; 4-Guide component; 41-Rail; 5-Bearing component; 51-Adjusting component; 52-Fastener; 6-First fixing component; 61-Wedge block; 7-Second fixing component; 71-Fixing component; 8-Guiding component; 81-Lower ring body; 811-Moving groove; 82-Upper ring body; 821-Moving through hole; 83-Moving piece; 831-Moving rod; 84-Elastic ring; 9-Synchronous adjustment component; 91-Frame body; 92-Transmission component; 93-Bevel gear; 94-Worm gear; 95-Worm. Detailed Implementation

[0034] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of the present invention and are used together with the invention to illustrate the principles of the invention.

[0035] Example 1

[0036] This embodiment provides a method for installing a test specimen, see [link to documentation]. Figure 1 Its use is as follows Figure 2 The test specimen mounting platform shown includes:

[0037] Step 1: During the installation of the test piece, adjust the position of the load-bearing component 5 in the track 41 multiple times in coordination with the descent of the test piece;

[0038] Step 2: The test specimen is placed against the load-bearing member 5; the height of the adjusting member 51 on the load-bearing member 5 is adjusted downward to reduce the distance between the test specimen and the base;

[0039] Step 3: Adjust the screws on the wedge block 61 so that the wedge block 61 abuts against the outer wall of the test piece, thus completing the first axial positioning of the test piece.

[0040] Step 4: Tighten the fasteners 71. Multiple fasteners 71 fix the upper part of the test piece, completing the second axial positioning of the test piece.

[0041] In this embodiment, the first step of adjusting the position of the load-bearing member 5 in the track 41 is as follows: before the test piece is installed, the fasteners 52 on the load-bearing member 5 are loosened, and the load-bearing member 5 slides freely on the track 41.

[0042] In this embodiment, the second step of adjusting the position of the load-bearing member 5 in the track 41 is as follows: when the test piece descends to the second fixing component, the load-bearing member 5 is moved to one end of the track 41 closer to the mounting frame.

[0043] In this embodiment, the third adjustment of the position of the load-bearing member 5 in the track 41 is as follows: when the test piece descends to a predetermined distance from the upper end face of the load-bearing member 5, the position of the load-bearing member 5 on the track 41 is adjusted for the third time, so that the circumcircle of the plurality of load-bearing members 5 is axially coincident with the lower end face or the inscribed circle of the lower end face of the test piece.

[0044] After completing the third adjustment of the position of the load-bearing component 5, the position of the adjusting component 51 on the load-bearing component 5 is adjusted upward so that the upper end face of the adjusting component 51 abuts against the lower end face of the test piece.

[0045] In the embodiment, in step two, when the test piece abuts against the load-bearing member 5, the first mark on the test piece corresponds to the second mark on the boss.

[0046] The test specimen installation method provided by this invention, in conjunction with the descent of the test specimen, adjusts the position of the load-bearing member 5 in the track to ensure that the load-bearing member 5 does not affect the descent of the test specimen or the arrangement of the connecting cables. The first adjustment of the load-bearing member 5 allows the bottom load-bearing member 5 to move freely on the guide rail of the boss, so that the load-bearing member 5 does not interfere with the cables of the test specimen when it is lowered. The second adjustment moves the load-bearing member 5 to the edge of the guide rail of the boss, ensuring that the cables do not interfere with the bottom load-bearing member 5 when the power device falls. The third adjustment places the load-bearing member 5 at a distance of 30-50mm from the upper surface of the test specimen, adjusting it to a support position to ensure that the top surface of the load-bearing member 5 can fully contact the ground of the power device, thus providing reliable support for the power device.

[0047] Example 2

[0048] This embodiment provides a test specimen installation method, which is used as follows: Figure 3 The test specimen mounting platform shown is used for test installation. Based on the installation method provided in Example 1, an additional step is added between step one and step two: using guide component 8 to guide the test specimen onto the load-bearing component 5. This step includes:

[0049] Step 1: During the installation of the test piece, the position of the load-bearing component 5 in the track 41 is adjusted multiple times in coordination with the descent of the test piece. Specifically, this includes three adjustments to the position of the load-bearing component 5 in the track 41: First: Before the test piece is installed, the fasteners 52 on the load-bearing component 5 are loosened, allowing the load-bearing component 5 to slide freely on the track 41; multiple load-bearing components 5 are evenly distributed in multiple guide rails of the guide component 4; Second: When the test piece descends to the second fixing component, the load-bearing component 5 is moved to one end of the track 41 closer to the mounting frame; Third: When the test piece descends to a predetermined distance from the upper surface of the load-bearing component 5, the position of the load-bearing component 5 on the track 41 is adjusted for the third time, so that the circumcircle of the multiple load-bearing components 5 coincides axially with the lower surface of the test piece or the inscribed circle of the lower surface.

[0050] Step 2: The test specimen is placed against the load-bearing member 5; the height of the adjusting member 51 on the load-bearing member 5 is adjusted downward to reduce the distance between the test specimen and the base;

[0051] Step 3: Adjust the screws on the wedge block 61 so that the wedge block 61 abuts against the outer wall of the test piece, thus completing the first axial positioning of the test piece.

[0052] Step 4: Tighten the fasteners 71. Multiple fasteners 71 fix the upper part of the test piece, completing the second axial positioning of the test piece.

[0053] Between step one and step two, the following step is also included: using a hoist to sequentially pass the test piece through the second fixing component 7 and the first fixing component 6, and then applying downward force to the guide component 8. For example... Figure 4 As shown, the guide component 8 includes a lower ring body 81, an upper ring body 82, multiple movable pieces 83, and an elastic ring 84. The lower ring body 81 is slidably mounted on the mounting bracket 3; multiple movable grooves 811 are formed on the upper surface of the lower ring body 81; the upper ring body 82 covers the lower ring body 81, and has a movable through hole 821 opposite to the movable groove 811; multiple movable pieces 83 are movably disposed between the lower ring body 81 and the upper ring body 82; each movable piece 83 has a movable rod 831, which includes a first sub-component disposed in the movable groove 811 and a second sub-component disposed in the movable through hole 821; the upper end of the second sub-component protrudes from the upper surface of the upper ring body 82; and the elastic ring 84 is sleeved on the upper end of the multiple second sub-components. The lower end of the test piece acts downward on the movable piece 83, pushing the movable rod 831 on the movable piece 83 from one end of the movable groove 811 and the movable through hole 821 to the other end. That is, multiple movable pieces 83 move away from the test piece, and a gap that can accommodate the test piece is formed in the center of multiple movable pieces 83. At the same time, under the action of the elastic ring 84, the range of motion of multiple movable pieces 83 is controlled, so that the movable pieces 83 are exactly abutted against the outer wall surface of the test piece. Multiple movable pieces 83 tightly hug the outer wall of the test piece, and move downward to the load-bearing member 5 as the test piece moves downward.

[0054] In this embodiment, when the test piece is positioned and fastened, the first fixing component 6 performs the first coarse positioning of the test piece by limiting the fixed ring frame and guiding the wedge block 61; when the test piece descends to the guide component 8, the head of the test piece applies a force to the movable piece 83 of the guide component 8, and the elastic ring applies a force to the movable rod 831 to contract towards the center. When balanced, multiple movable pieces 83 are stuck on the outer wall of the test piece. The test piece descends, driving the guide component 8 to descend, until the test piece moves onto the load-bearing component 5, completing the second fine positioning, ensuring that the axis of the test piece is always aligned with the center of the circle where multiple load-bearing components 5 are located. During the installation and fixing process, the axis of the test piece is maintained, ensuring the accuracy of the hot test.

[0055] A slider is provided on the outer wall of the guide component 8. The slider is located on the outer wall of the lower ring 81. A corresponding groove is provided on the mounting frame 3 to enable the guide component 8 to move up and down on the mounting frame 3. At the same time, an elastic element is provided at the bottom of the groove. When the test piece is tested, the elastic element supports the guide component 8 to rise to the upper end of the groove.

[0056] Furthermore, in the guide component 8, when the test piece acts on the movable piece 83, the size of the gap generated by the movement of the multiple movable pieces 83 can be adjusted according to the size of the test piece, which can meet the guiding and fixing needs of test pieces of different sizes. The center of the mechanism surrounded by the multiple movable pieces 83 forms a through hole, and the center position of the movable piece 83 is thin, which facilitates the application of force to the movable piece when the test piece descends.

[0057] Multiple movable pieces 83 in the guide component 8 are engaged with the outer wall of the test piece, the head of the test piece rests against the load-bearing component 5, the multiple movable pieces 83 fix the middle part of the test piece, and the second fixing component 7 fixes the tail end of the test piece, thus fixing it firmly.

[0058] When the hot commissioning test is completed, the test piece, under the action of the hoisting device, breaks free from the constraint of the elastic ring 84 and detaches from the guide component 8.

[0059] Example 3

[0060] This embodiment provides a test specimen installation method, which is used as follows: Figures 5 to 7 The test specimen mounting platform shown is used to install the test specimen. Based on the installation method provided in Embodiment 1 or Embodiment 2, in step four, the fixing members 71 on the second fixing component 7 are simultaneously tightened using the synchronous adjustment component 9. Multiple fixing members 71 fix the upper part of the test specimen, completing the second axial positioning of the test specimen, which includes:

[0061] The specific operation of step four is as follows: the worm 95 is driven to rotate manually or by using a drive device. The worm 95 drives the worm wheel 94 and the bevel gear 93 to rotate in sequence. The bevel gear 93 drives the transmission component 92 to rotate. The transmission component 92 drives the threaded hole on the ring frame of the second fixed component to rotate. Multiple transmission components move towards or away from the test piece at the same time to ensure that the force applied to the test piece is equal.

[0062] The synchronous adjustment component 9 includes a frame 91, a transmission component 92, a bevel gear 93, a worm gear 94, and a worm 95. The frame 91 is fixed to the mounting bracket 3, and the bevel gear 93 is fixed to the frame 91. The transmission component 92 is fixed to the fixing component 71, and the transmission component 92 is located at one end of the fixing component 71 opposite to the second fixing component 7. The fixing component 71 is threaded into the threaded through hole of the second fixing component 7. The transmission component 92 drives the fixing component 71 to rotate, causing the fixing component 71 to move towards and away from the test piece. The bevel gear 93 and the worm gear 94 are annular components, and the bevel gear 93 and the worm gear 94 rotate synchronously. The bevel gear 93 and the worm gear 94 are coaxially arranged with the second fixing component 7, and the inner ring size of the bevel gear 93 and the worm gear 94 is not less than the inner ring size of the second fixing component 7. When the test piece is installed from top to bottom, it can pass through the worm gear 94 and the bevel gear in sequence. 93. The frame 91, the second fixing component 7, the first fixing component 6, and the guide component 8 are abutted against the load-bearing component 5. When the synchronous adjustment component 9 is working, the worm 95 is rotated manually or driven by a drive device. The worm 95 drives the worm wheel 94 to rotate. The bevel gear 93 rotates synchronously with the worm wheel 94. The bevel gear 93 meshes with the transmission component 92. The rotation of the bevel gear 93 is converted into the rotation of the transmission component 92. The transmission component 92 drives the fixing component 71 to move in the threaded hole of the second fixing component. The bevel gear 93 meshes with multiple transmission components 92, which can drive multiple transmission components 92 to move simultaneously. Multiple fixing components move synchronously toward or away from the test piece, realizing the synchronous tightening of multiple fixing components. This ensures that multiple fixing components apply the same force to the test piece, avoiding the problem of tightening the fixing components separately, which is time-consuming and laborious and cannot guarantee that the test piece is subjected to equal force. At the same time, it can ensure that the test piece maintains a vertical posture.

[0063] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for installing a test specimen, characterized in that, include: Step 1: During the installation of the test piece, adjust the relative position of the load-bearing component (5) on the mounting platform and the test piece multiple times to coordinate with the descent of the test piece; Step 2: The test piece is placed on the load-bearing component (5) to complete the positioning.

2. The method for installing the test specimen according to claim 1, characterized in that, Before step one, the height of the upper adjusting member (51) of the load-bearing member (5) is adjusted to reduce the distance between the test piece and the mounting platform.

3. The method for installing the test specimen according to claim 2, characterized in that, The steps of repeatedly adjusting the relative position of the load-bearing component (5) on the mounting platform and the test piece include the first position adjustment, specifically: Before the test piece is installed, the position of the load-bearing component (5) on the mounting platform is adjusted for the first time, and the load-bearing component (5) can slide freely on the preset track on the mounting platform.

4. The method for installing the test specimen according to claim 3, characterized in that, The step of repeatedly adjusting the relative position of the load-bearing component (5) on the mounting platform and the test piece also includes a second position adjustment, specifically: When the test piece descends to the first fixed position, the load-bearing component (5) is moved to one end of the track (41) near the edge of the mounting platform.

5. The method for installing the test specimen according to claim 4, characterized in that, The step of repeatedly adjusting the relative position of the load-bearing component (5) on the mounting platform and the test piece also includes a third position adjustment, specifically: when the test piece is lowered to a predetermined distance from the upper end face of the load-bearing component (5), the position of the load-bearing component (5) on the mounting platform is adjusted for the third time, so that the circumscribed circles of the multiple load-bearing components (5) coincide with the lower end face of the test piece in the axial direction.

6. The method for installing the test specimen according to claim 5, characterized in that, The predetermined distance is 30mm to 50mm.

7. The method for installing the test specimen according to claim 5, characterized in that, After the test piece is placed against the load-bearing member (5), it also includes: Adjust the position of the adjusting member (51) on the load-bearing member (5) upward so that the upper end face of the adjusting member (51) abuts against the lower end face of the test piece.

8. The method for installing the test specimen according to claim 4, characterized in that, It also includes step three, the first axial positioning of the test piece at the second fixed position; The second fixed position is located between the load-bearing component and the first fixed position.

9. The method for installing the test specimen according to claim 8, characterized in that, It also includes step four, which involves a second axial positioning of the test piece at the first fixed position; the first fixed position corresponds to the upper part of the test piece.

10. The method for installing the test specimen according to claim 1, characterized in that, In step two, when the test piece is placed against the load-bearing component (5), the first mark on the test piece corresponds to the second mark on the mounting platform.

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