Through-piece centering device, concentricity laser adjustment device and concentricity adjustment method

Abstract

The present invention includes a collar located at the axial position of the penetration piece, at least three scale screws are evenly distributed on the circumference of the side wall of the collar, each scale screw extends radially along the radial direction of the collar, and each screw is provided with a positioning card, each positioning card constitutes a clamping assembly that can be clamped on the side wall of the penetration piece, and can be used alone to realize the centering of the penetration piece, and three sets of centering devices are used in combination, one set is provided with a laser transmitter, and two sets are provided with reflective sheets, so that concentricity adjustment can be performed. The overall structure is simple and compact, the operability is strong, the flexibility is high, and the reliability is good. The concentricity adjustment method based on the concentricity adjustment device is not only convenient for measuring data collection and improving the efficiency of penetration piece installation, but also can reduce workload and reduce labor costs, and has great promotion value and broad application prospects.

Description

Technical Field

[0001] The invention relates to the technical field of laser measuring devices, and in particular to a penetration centering device, a concentricity laser adjustment and measurement device and a concentricity adjustment and measurement method. Background Art

[0002] The containment vessel of the reactor building of the third-generation nuclear power reactor "Hualong One" is a circular structure with a double-layer design of inner and outer shells, in which the inner shell is bonded to the steel lining, and a large number of penetration sleeves are arranged on the wall of the steel lining. The inner and outer shell penetration sleeves are located at different radii, the same angle and elevation, and the concentricity is guaranteed to be consistent, and the installation accuracy and concentricity requirements are high. The measurement and setting of steel lining penetrations generally use a plumb bob to center the inner and outer diameters of the penetrations and mark them. There are two methods for adjusting penetrations: First, by setting up small prisms at the center of the bottom of the inner and outer diameters of the penetrations, the concentricity and three-dimensional coordinates of the penetrations are measured by a total station; second, use a straight ruler and a measuring reflector to measure and determine the center of the penetration, and then use a total station to measure the concentricity and three-dimensional coordinates of the penetration. Both of the above methods require special personnel to assist in setting up the prism or steel ruler. The process is repetitive, there are safety hazards in working at heights and it is not conducive to controlling labor costs; setting up the prism or steel ruler takes a long time and the process is cumbersome, and the work efficiency is low; the centering accuracy of the through-piece is difficult to control and deviations are easy to occur, resulting in difficulty in controlling the concentricity measurement accuracy.

[0003] The installation method of the shell penetration and the corresponding inner shell penetration of the "Hualong One" reactor-type nuclear power plant is as follows: according to the penetration installed in the inner shell, the penetration positioning plate is installed in the inner and outer shell penetration sleeves at the same time. A through hole is provided in the center of the positioning plate. The positioning line passes through the positioning plate through the through hole at the same time to determine that the outer shell penetration sleeve and the inner shell penetration sleeve are at the same concentricity. This method requires the production of positioning plates with different pipe diameters; the positioning line is a soft material, and it is not easy to control the accuracy of the positioning line through the pipe hole during the casing positioning installation process, and it is difficult to ensure the concentricity accuracy of the inner and outer shell penetrations; 3 to 4 people are required to observe the position of the positioning line at all times during the installation process, and the visualization is poor, which is not conducive to the commissioning and labor cost control of on-site penetrations; the operation process is cumbersome and complicated, and the work efficiency is low. Summary of the invention

[0004] The present invention overcomes the defects of the prior art and provides a device that can be used alone to realize the centering of the through-piece. When three sets of centering devices are used as a set, a laser device can also be used for concentricity adjustment. The overall structure is simple and compact, the operability is strong, the flexibility is high, and the reliability is good. A concentricity adjustment method is also provided, which is convenient for measuring data collection and improving the efficiency of through-piece installation, and can also reduce workload and reduce labor costs.

[0005] The present invention is achieved through the following technical solutions:

[0006] A penetration centering device comprises a collar that can be set in the middle of the end face of the penetration, at least three scale screws are evenly distributed on the circumference of the side wall of the collar, each of the scale screws extends radially along the radial direction of the collar, and each of the screws is provided with a positioning card, and each of the positioning cards constitutes a clamping assembly that can be clamped on the side wall of the penetration.

[0007] Furthermore, the clamping assembly includes a locking piece arranged on the positioning card, the locking piece passes through the side wall of the clamping assembly, and one end of the locking piece that penetrates into the clamping assembly is tightly pressed against the scale screw.

[0008] Furthermore, an anti-dropping clamp is provided at one end of the graduated screw away from the collar.

[0009] Furthermore, a seat for screwing in is provided at a position on the outer side wall of the collar corresponding to the scale screw.

[0010] Furthermore, a detachably connected measuring reflector is provided on the end surface of the collar, and a plurality of concentric annular closed coils are provided on one side of the reflective surface of the reflector.

[0011] A through-piece concentricity laser adjustment and testing device, comprising three sets of the through-piece centering devices mentioned above, which are divided into a first centering device, a second centering device and a third centering device;

[0012] In the first centering device, the collar is in the shape of a hollow cylinder, an adjusting piece is provided between adjacent scale screws, a plurality of adjusting pieces are evenly distributed on the collar in a circumference, and a laser emitter is detachably connected to the middle of the collar through the adjusting piece;

[0013] In the second centering device and the third centering device, a detachably connected reflective sheet is provided on the end surface of the ring, a plurality of concentric annular closed coils are provided on one side of the reflective surface of the reflective sheet, and a light-through hole is provided at the center of the reflective sheet of the second centering device.

[0014] Furthermore, the adjusting member passes through the side wall of the collar, and the length of one end of the adjusting member extending into the collar is adjustable.

[0015] Furthermore, the adjusting member is threadedly connected to the side wall of the collar.

[0016] Furthermore, the annular closed coil is a circle, and a plurality of circles with different diameters form concentric circles.

[0017] A method for adjusting the concentricity of a penetration member, using the aforementioned laser adjustment device for adjusting the concentricity of a penetration member, is used to adjust the concentricity between a first penetration member and a second penetration member, wherein the spatial position of the first penetration member has been determined, and the position of the second penetration member is determined according to the adjustment of the spatial position of the first penetration member, comprising the following steps:

[0018] A. Clamp the first centering device onto the end face of the first penetration member away from the second penetration member, adjust the position of the positioning card until the position of each positioning card on the corresponding scale screw is equal to the distance between the collar, and the laser line of the laser transmitter extends toward the second penetration member;

[0019] B. Clamp the second centering device onto the end surface of the first through-piece close to the second through-piece, adjust the position of the positioning card until the position of each positioning card on the corresponding scale screw is equal to the distance between the collar, and the reflective surface of the reflective sheet faces the laser emitter;

[0020] C. Adjust the direction of the laser transmitter by adjusting the assembly until the laser line is aligned with the middle of the concentric annular closed coil of the reflective sheet;

[0021] D. Remove the second centering device from the end surface of the first penetration member;

[0022] E. Clamp the second centering device onto the end surface of the second penetration member close to the first penetration member, adjust the position of the positioning card until the position of each positioning card on the corresponding scale screw is equal to the distance between the collar, and the reflective surface of the reflective sheet faces the laser emitter;

[0023] F. Clamp the third centering device onto the end face of the second penetration member away from the first penetration member, and adjust the position of the positioning card until the position of each positioning card on the corresponding scale screw is equal to the distance between the collar and the reflective surface of the reflective sheet faces the laser emitter;

[0024] G. Adjust the position of the second penetration piece until the laser light spot on the reflective sheet of the second centering device is aligned with the middle of the concentric annular closed coils and the reflective sheet of the third centering device is aligned with the middle of the concentric annular closed coils of the reflective sheet.

[0025] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0026] The present invention includes a collar located at the axial position of the penetration piece, and at least three scale screws are evenly distributed on the circumference of the side wall of the collar, and each scale screw extends radially along the radial direction of the collar, and each screw is provided with a positioning card, and each positioning card constitutes a clamping assembly that can be clamped on the side wall of the penetration piece. When used alone, the penetration piece can be centered. Three sets of centering devices are used in combination, one set is provided with a laser transmitter, and two sets are provided with reflective sheets, so that concentricity adjustment can be performed. The overall structure is simple and compact, and the operability is strong, the flexibility is high, and the reliability is good. The concentricity adjustment method based on the concentricity laser adjustment device is not only convenient for measuring data collection and improving the efficiency of penetration piece installation, but also can reduce workload and reduce labor costs. It has great promotion value and broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0028] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a three-dimensional schematic diagram of the fixing assembly of the present invention;

[0030] Figure 3 It is a front view of the scale screw and the anti-dropping clamp of the present invention;

[0031] Figure 4 It is a schematic diagram of installing the laser transmitter of the present invention on the connecting component;

[0032] Figure 5 It is a schematic diagram of installing the reflective sheet of the present invention on the collar;

[0033] Figure 6 It is a schematic diagram of the implementation of the present invention when it is applied to round tube centering;

[0034] Figure 7 It is a schematic diagram of the implementation of the present invention when applied to double-sleeve concentricity measurement.

[0035] Marks and corresponding parts names in the attached drawings:

[0036] 1-ring, 2-adjusting part, 3-scale screw, 4-positioning card, 5-locking part, 6-anti-dropping clamp, 7-laser transmitter, 8-reflective sheet, 9-round tube, 10-inner shell sleeve, 11-outer shell sleeve, 12-laser line. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary implementation modes of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0038] The present invention provides a through-piece centering device, comprising a collar 1 that can be arranged in the middle of the end face of the through-piece, at least three scale screws 3 are evenly distributed on the circumference of the side wall of the collar 1, each scale screw 3 extends radially along the radial direction of the collar 1, and each screw is provided with a positioning card 4, and each positioning card 4 forms a clamping assembly that can be clamped on the side wall of the through-piece. It can be understood that when the cross-section of the through-piece is a torus, three scale screws 3 are arranged on the side of the collar 1 and four positioning cards 4 are adapted, so that it can be clamped on the side of the round tube; when the cross-section of the through-piece is a rectangle, the scale screws 3 and the positioning cards 4 are set to four to achieve clamping; when the through-piece is a polygon, the number of the scale screws 3 and the positioning cards 4 is adapted to the number of sides of the polygon. It should be noted that the position of the positioning card 4 is adjusted until the position of each positioning card 4 on the corresponding scale screw 3 is equal to the distance from the collar 1, at which time the center of the collar 1 is the center of the through-piece.

[0039] Furthermore, the clamping assembly includes a locking member 5 disposed on the positioning clamp 4, the locking member 5 passes through the side wall of the clamping assembly, and one end of the locking member 5 that penetrates the clamping assembly is tightly pressed against the scale screw 3. Figure 6 As shown, it can be understood that the centering device is fixed to the end of the round tube 9 by a clamping assembly. According to the different sizes of the through-pieces, the positioning card 4 on the scale screw 3 is adjusted and fixed by the locking member 5. The center of the reflective sheet 8 measured on the device is the center of the sleeve, which simplifies the centering process of the through-piece sleeve, saves working procedures, greatly improves work efficiency and saves construction costs, meeting the fast-paced construction schedule requirements of the nuclear island.

[0040] Further, an anti-dropout clamp 6 is provided at one end of the scale screw 3 away from the collar 1. It can be understood that the anti-dropout clamp 6 can prevent the positioning clamp 4 from falling out of the scale screw 3 when the locking member 5 is in a loose state.

[0041] Furthermore, a seat for the screw to be screwed in is provided at the position of the outer wall of the collar 1 corresponding to the scale screw 3. It can be understood that the seat is provided to facilitate the rotation of the scale screw 3, and the scale screw 3 can also be removed in a normal non-use state for easy storage and transportation.

[0042] Furthermore, a detachably connected measuring reflective sheet 8 is provided on the end surface of the collar 1, and a plurality of concentric annular closed coils are provided on one side of the reflective surface of the reflective sheet 8. It is understandable that, for the convenience of observation, a reflective sheet 8 can be provided on the collar 1, and a plurality of concentric annular closed coils are provided on one side of the reflective surface of the reflective sheet 8, and the center of the annular closed coil is the center of the penetration piece, and then the three-dimensional coordinates of the reflective sheet 8 of the tool on the penetration piece can be measured by the total station, so that the position and concentricity of the penetration piece can be adjusted.

[0043] The present invention also provides a through-piece concentricity laser adjustment device, comprising three sets of the aforementioned through-piece centering devices, which are divided into a first centering device, a second centering device and a third centering device; in the first centering device, the collar 1 is in the shape of a hollow cylinder, and an adjustment member 2 is provided between adjacent scale screws 3, and multiple adjustment members 2 are evenly distributed on the collar 1 in a circular shape, and a laser emitter 7 detachably connected to the middle part of the collar 1 through the adjustment member 2; in the second centering device and the third centering device, a detachably connected reflective sheet 8 is provided on the end face of the collar 1, and a plurality of concentric annular closed coils are provided on one side of the reflective surface of the reflective sheet 8, and a light-through hole is provided at the center position of the reflective sheet 8 of the second centering device. It can be understood that the first centering device is arranged at one end of the first penetration member whose spatial position has been determined, and the laser line 12 is emitted along the axis, while the second centering device and the third centering device are respectively arranged at both ends of the second penetration member whose spatial position is to be determined. When the center of the collar of the second centering device and the center of the collar of the third centering device coincide with the light spot of the laser line 12 on the reflective sheet 8, the position of the second penetration member is determined and the concentricity of the second penetration member and the first penetration member can be guaranteed; therefore, the laser emitter 7 is arranged in the middle of the collar of the first centering device, and the reflective sheet is arranged in the middle of the second centering device and the third centering device. Since the laser line 12 needs to continue to be emitted to the reflective sheet 8 of the third centering device after passing through the reflective sheet 8 of the second centering device, a light-through hole is arranged at the center of the reflective sheet 8 of the second centering device. The light-through hole is preferably circular, which is convenient for processing, and the size of the hole can allow the laser line 12 to pass through without affecting the centering accuracy of the second centering device.

[0044] Furthermore, the adjusting member 2 penetrates the side wall of the collar 1, and the length of one end of the adjusting member 2 extending into the collar 1 is adjustable. Furthermore, the adjusting member 2 is threadedly connected to the side wall of the collar 1. It can be understood that the laser emitter 7 has different thicknesses, and the adjusting member 2 is used to adapt to laser emitters 7 of different thicknesses. The threaded connection method is easy to obtain tools and convenient to adjust.

[0045] Furthermore, the annular closed coil is a circle, and several circles with different diameters form concentric circles. It can be understood that the concentric annular closed coils can be several rectangles, rounded rectangles, polygons, circles, etc., which are suitable for penetrations with different cross-sections. The position of the light spot on the pseudo-annular closed coil is convenient for intuitively and quickly adjusting the second penetration. During the construction of the nuclear island, the cross-sections of the inner shell casing 10 and the outer shell casing 11 are both circular, so the annular closed coil is set to be circular.

[0046] The present invention also provides a method for adjusting the concentricity of a through-piece, using the above-mentioned laser adjustment device for adjusting the concentricity of a through-piece to adjust the concentricity between a first through-piece and a second through-piece, such as Figure 7As shown, the inner shell sleeve 10 is equivalent to the first penetration member, the outer shell sleeve 11 is equivalent to the second penetration member, the spatial position of the first penetration member has been determined, that is, the position of the inner shell sleeve 10 has been determined, and the position of the second penetration member is determined according to the spatial position of the first penetration member, that is, the spatial position of the outer shell sleeve 11 is determined according to the spatial position of the inner shell sleeve 10, including the following steps:

[0047] A. Clamp the first centering device onto the end face of the first through-piece away from the second through-piece, and adjust the position of the positioning card 4 until the position of each positioning card 4 on the corresponding scale screw 3 is equal to the distance from the collar 1, and the laser line 12 of the laser emitter 7 extends toward the second through-piece;

[0048] B. Clamp the second centering device onto the end surface of the first through-piece close to the second through-piece, and adjust the position of the positioning card 4 until the position of each positioning card 4 on the corresponding scale screw 3 is equal to the distance from the collar 1, and the reflective surface of the reflective sheet 8 faces the laser emitter 7;

[0049] C. Adjust the direction of the laser emitter 7 by adjusting the assembly until the laser line 12 is aligned with the middle of the concentric annular closed coil of the reflective sheet 8; it can be understood that the three steps A, B, and C are to ensure that the emission direction of the laser emitter 7 coincides with the axis of the inner shell sleeve 10.

[0050] D. Remove the second centering device from the end surface of the first penetration member;

[0051] E. Clamp the second centering device onto the end surface of the second penetration member close to the first penetration member, and adjust the position of the positioning card 4 until the position of each positioning card 4 on the corresponding scale screw 3 is equal to the distance from the collar 1, and the reflective surface of the reflective sheet 8 faces the laser emitter 7;

[0052] F. Clamp the third centering device onto the end face of the second penetration member away from the first penetration member, and adjust the position of the positioning card 4 until the position of each positioning card 4 on the corresponding scale screw 3 is equal to the distance from the collar 1, and the reflective surface of the reflective sheet 8 faces the laser emitter 7;

[0053] G. Adjust the position of the second penetration member until the spot of the laser line 12 on the reflective sheet 8 of the second centering device is aligned with the middle of the concentric annular closed coil and the reflective sheet 8 of the third centering device is aligned with the middle of the concentric annular closed coil of the reflective sheet 8. It can be understood that the three steps E, F, and G are the core operations of the concentricity adjustment and measurement, and the outer shell sleeve 11 is repeatedly adjusted to achieve concentricity with the inner shell sleeve 1.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] It should be understood that the terms “longitudinal”, “lateral”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the components or mechanisms referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0056] The above specific implementation methods further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only preferred implementation methods of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laser adjustment and measurement device for concentricity of a penetration part, characterized in that: The invention comprises three sets of through-piece centering devices, which are divided into a first centering device, a second centering device and a third centering device; the through-piece centering device comprises a collar (1) which can be arranged in the middle of the end face of the through-piece, at least three scale screws (3) are evenly distributed on the circumference of the side wall of the collar (1), each of the scale screws (3) extends radially along the radial direction of the collar (1), each of the screws is provided with a positioning card (4), each of the positioning cards (4) forms a clamping assembly which can be clamped on the side wall of the through-piece, a detachably connected measuring reflective sheet (8) is provided on the end face of the collar (1), and a plurality of concentric annular closed coils are provided on one side of the reflective surface of the reflective sheet (8); In the first centering device, the collar (1) is in the shape of a hollow cylinder, an adjusting piece (2) is provided between adjacent scale screws (3), a plurality of adjusting pieces (2) are evenly distributed on the collar (1) in a circumferential manner, and a laser emitter (7) is detachably connected to the adjusting piece (2) in the middle of the collar (1); in the second centering device and the third centering device, a detachably connected reflective sheet (8) is provided on the end face of the collar (1), a plurality of concentric annular closed coils are provided on one side of the reflective surface of the reflective sheet (8), and a light-through hole is provided at the center of the reflective sheet (8) of the second centering device; the adjusting piece (2) passes through the side wall of the collar (1), and the length of one end of the adjusting piece (2) extending into the collar (1) is adjustable.

2. The laser adjustment and measurement device for concentricity of a penetration piece according to claim 1, characterized in that: The adjusting member (2) is threadedly connected to the side wall of the collar (1).

3. The laser adjustment and measurement device for concentricity of a penetration piece according to claim 1, characterized in that: The annular closed coil is a circle, and a plurality of circles with different diameters form concentric circles.

4. A method for adjusting the concentricity of a penetration, characterized in that: A laser measuring device for measuring the concentricity of a through-piece according to any one of claims 1 to 3 is used to measure the concentricity between a first through-piece and a second through-piece, wherein the spatial position of the first through-piece has been determined, and the position of the second through-piece is determined according to the adjustment of the spatial position of the first through-piece, comprising the following steps: A. Clamp the first centering device onto the end surface of the first through-piece away from the second through-piece, and adjust the position of the positioning card (4) until the position of each positioning card (4) on the corresponding scale screw (3) is at the same distance from the collar (1), and the laser line (12) of the laser emitter (7) extends toward the second through-piece; B. Clamp the second centering device onto the end surface of the first through-piece close to the second through-piece, and adjust the position of the positioning card (4) until the position of each positioning card (4) on the corresponding scale screw (3) is at the same distance from the collar (1), and the reflective surface of the reflective sheet (8) faces the laser emitter (7); C. The adjustment component adjusts the direction of the laser emitter (7) until the laser line (12) is aligned with the middle of the concentric annular closed coil of the reflective sheet (8); D. Remove the second centering device from the end surface of the first penetration member; E. Clamp the second centering device onto the end surface of the second penetration piece close to the first penetration piece, and adjust the position of the positioning card (4) until the position of each positioning card (4) on the corresponding scale screw (3) is at the same distance from the collar (1), and the reflective surface of the reflective sheet (8) faces the laser emitter (7); F. Clamp the third centering device onto the end surface of the second penetration member away from the first penetration member, and adjust the position of the positioning card (4) until the position of each positioning card (4) on the corresponding scale screw (3) is at the same distance from the collar (1), and the reflective surface of the reflective sheet (8) faces the laser emitter (7); G. Adjust the position of the second penetration member until the light spot of the laser line (12) on the reflective sheet (8) of the second centering device is aligned with the middle of the concentric annular closed coil and the reflective sheet (8) of the third centering device is aligned with the middle of the concentric annular closed coil of the reflective sheet (8).

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