Variable-diameter concrete cylindrical template verticality detection device and correction method thereof

Abstract

The invention discloses a variable-diameter concrete cylindrical template verticality detection device and a correction method thereof.The variable-diameter concrete cylindrical template verticality detection device comprises an annular seat, four strip-shaped mounting grooves are formed in the circumferential direction of the annular seat, and first measuring rods are slidably arranged in the two strip-shaped mounting grooves in the opposite sides of the annular seat in a penetrating mode correspondingly; second measuring rods are slidably arranged in the other two strip-shaped mounting grooves located on the opposite side of the annular base in a penetrating mode respectively, and a first annular gear and a second annular gear are movably arranged on the upper end face and the lower end face of the annular base respectively. The two first measuring rods and the two second measuring rods are respectively connected with the first annular gear and the second annular gear through linkage pieces and respectively drive the first annular gear and the second annular gear to rotate through the axial displacement of the first measuring rods and the second measuring rods; according to the scheme, the two first measuring rods and the two second measuring rods can be used for respectively measuring the inclined micro-motion of the cylindrical template on two vertical degrees of freedom of the horizontal plane, so that the perpendicularity of the cylindrical template can be detected in real time, and the perpendicularity of the cylindrical template can be corrected in a targeted manner.

Description

Technical Field

[0001] The invention relates to the technical field of verticality detection, and in particular to a verticality detection device for a variable-diameter concrete cylindrical formwork and a correction method thereof. Background Art

[0002] As people's aesthetic taste for architecture improves, more and more special-shaped buildings appear before our eyes; concrete cylinders are also increasingly used; and in the construction of super-high variable-diameter concrete cylinders in construction projects, the method of pouring in sections from bottom to top is generally adopted. When each section of the concrete cylinder is implemented, a steel cage is first built on the foundation or a steel cage is placed on site, and then a steel mold or wooden mold is built on the outside of the steel cage to form a hollow cylindrical structure, and then concrete is poured into the middle, and after waiting for the concrete to solidify, a concrete cylinder is obtained.

[0003] The cylindrical formwork generally meets the verticality requirements when it is erected. After the cylindrical formwork is erected and in the subsequent pouring process, the verticality of the cylindrical formwork must be maintained at all times, that is, the cylindrical formwork cannot tilt or move slightly. The traditional verticality detection method is to install several precision instruments on the circumference of the cylindrical formwork and detect the tilt or move of the cylindrical formwork. The construction cost is high, and in the segmented construction of the ultra-high variable diameter concrete column, the height of the precision instrument and the radial distance from the cylindrical formwork need to be constantly changed, and the operation is cumbersome. At the same time, the cylindrical formwork is reinforced with a shaped steel belt supplemented by a steel pipe scaffolding, and the scaffolding is connected to the beam and slab support system. This reinforcement method has extremely high requirements on the strength of the steel belt, and the verticality is difficult to ensure. When the cylindrical formwork tilts or moves slightly, a special correction plan needs to be constructed in a targeted manner, which undoubtedly makes the detection and correction method of the verticality of the cylindrical formwork cumbersome, the construction efficiency is low, and the construction cost is high. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a device for detecting the verticality of a variable diameter concrete cylindrical formwork and a correction method thereof, which solves the problem that the prior art is difficult to perform real-time detection and correction of the verticality of the cylindrical formwork.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is:

[0006] In a first aspect, a device for detecting the verticality of a variable diameter concrete cylindrical formwork is provided, which includes an annular seat, four strip-shaped mounting grooves are opened on the circumference of the annular seat, and the four strip-shaped mounting grooves are arranged in a cross shape and are respectively located in the radial direction of the annular seat, a first measuring rod is slidably inserted into two strip-shaped mounting grooves located on opposite sides of the annular seat, and a second measuring rod is slidably inserted into the other two strip-shaped mounting grooves located on opposite sides of the annular seat, and a first annular gear and a second annular gear are movably provided on the upper and lower end surfaces of the annular seat, respectively, and the two first measuring rods and the two second measuring rods are respectively connected to the first annular gear and the second annular gear through a linkage member. The wheels are connected and the first ring gear and the second ring gear are driven to rotate respectively through the axial displacement of the first measuring rod and the second measuring rod; the first detection gear and the second detection gear respectively meshing with the first ring gear and the second ring gear are arranged on the annular seat, and the first detection gear and the second detection gear are respectively connected to the first encoder and the second encoder in transmission; the outer movable sleeve of the annular seat is provided with a rotating seat connected to the servo motor in transmission, and the rotating seat is provided with a pushing mechanism for laterally pushing the cylindrical template and correcting its verticality, and the first encoder, the second encoder, the servo motor and the pushing mechanism are all electrically connected to the controller.

[0007] Furthermore, the lateral openings of the two strip-shaped mounting grooves where the two first measuring rods are located are arranged on the upper end surface of the annular seat, and the lateral openings of the two strip-shaped mounting grooves where the two second measuring rods are located are arranged on the lower end surface of the annular seat, and the linkage part includes a linkage rod connected to the first measuring rod and the second measuring rod, and the first arc groove and the second arc groove are respectively arranged on both sides of the first ring gear and the second ring gear, and the two linkage rods connected to the two first measuring rods are respectively slidably arranged in the first arc groove and the second arc groove on the first ring gear, and the two linkage rods connected to the two second measuring rods are respectively slidably arranged in the first arc groove and the second arc groove on the second ring gear.

[0008] Furthermore, the first arc-shaped groove and the second arc-shaped groove are arranged in mirror symmetry, and the radial distances between the two ends of the first arc-shaped groove or the second arc-shaped groove and the center of the annular seat are unequal.

[0009] Furthermore, a cross bar is provided at the inner ends of the first measuring rod and the second measuring rod, the cross bar extends horizontally and the first measuring rod or the second measuring rod connected thereto is vertically arranged, and the outer side wall of the cross bar is covered with a rubber layer.

[0010] Furthermore, strip-shaped positioning grooves are provided in the extension directions of the first measuring rod and the second measuring rod, a positioning block for being fastened to the strip positioning groove is provided at one end of the linkage rod, a sliding hole is provided on the side of the positioning block, two sliding blocks are slidably engaged at both ends of the sliding hole, a threaded hole connected to the sliding hole is provided in the linkage rod, a screw rod is engaged on the threaded hole, a cone head is provided at the inner end of the screw rod, and a push inclined surface is provided at the inner end of the sliding block for sliding engagement with the side of the cone head.

[0011] Furthermore, annular ridges are arranged at both ends of the sliding hole, an annular groove matching with the annular ridges is arranged at the outer end of the sliding block, and an elastic rubber ring is arranged between the annular ridges and the annular grooves.

[0012] Furthermore, concave-convex stripes are arranged on the outer end surface of the slider and the two side surfaces of the strip-shaped positioning groove.

[0013] Furthermore, the pushing mechanism includes a column arranged on the rotating seat, and a telescopic cylinder is arranged on the column, the telescopic direction of which is located in the radial direction of the rotating seat, and the telescopic end of the telescopic cylinder points to the center of the rotating seat.

[0014] In a second aspect, a method for calibrating a verticality detection device for a variable diameter concrete cylindrical formwork is provided, comprising the following steps:

[0015] S1: The annular seat is set on the built cylindrical formwork, and the annular seat is fixed to the scaffolding around the cylindrical formwork through a number of connectors, and the annular seat is coaxially arranged with the cylindrical formwork;

[0016] S2: After the two first measuring rods and the second measuring rod are respectively inserted into the four strip-shaped installation grooves, a cross bar is installed at the inner ends of the first measuring rod and the second measuring rod, and the middle parts of the four cross bars are respectively abutted against the four sides of the cylindrical template;

[0017] S3: passing the four linkage rods through the middle of the two first arc-shaped grooves and the two second arc-shaped grooves respectively and fastening them to the strip-shaped positioning grooves through positioning blocks, and then performing zero adjustment on the first encoder and the second encoder;

[0018] S4: by analyzing the positive and negative signals and the angular displacement signals of the first encoder and the second encoder, the horizontal direction of the inclination of the cylindrical template is obtained;

[0019] S5: The swivel seat is driven to rotate by a servo motor until the telescopic cylinder is located in the horizontal direction of the inclination of the cylindrical template, and the cylindrical template is laterally supported by the telescopic cylinder until the first encoder and the second encoder are reset to zero, so that the verticality of the cylindrical template can be corrected.

[0020] Furthermore, the specific analysis method in step S4 includes:

[0021] A1: Construct a plane rectangular coordinate system according to the cross lines of the two first measuring rods and the two second measuring rods, and find the tilt reference point O of the cylindrical template in the plane rectangular coordinate system. 斜 ;

[0022] When the first encoder and the second encoder both rotate forward, the tilt reference point O 斜 The coordinates are (d1, d2); when the first encoder and the second encoder are both reversed, the tilt reference point O斜 The coordinates are (-d1, -d2); when the first encoder rotates forward and the second encoder rotates reversely, the tilt reference point O 斜 The coordinates of the first encoder are (d1, -d2); when the first encoder is reversed and the second encoder is forward, the tilt reference point O 斜 The coordinates are (-d1, d2), where d1 is the angular displacement of the first encoder and d2 is the angular displacement of the second encoder;

[0023] A2: Coordinate origin and tilt reference point O 斜 The horizontal direction of the line between them is the horizontal direction of the inclination of the cylindrical formwork.

[0024] The beneficial effects of the present invention are:

[0025] 1. This scheme can measure the inclination micro-motion of the cylindrical template in two vertical degrees of freedom in the horizontal plane through two first measuring rods and two second measuring rods, that is, realize the real-time detection of the verticality of the cylindrical template; at the same time, the micro-motion displacement of the first measuring rod and the second measuring rod in the radial direction can be characterized by the rotation of the first ring gear and the second ring gear respectively, and then the first encoder and the second encoder can detect the forward and reverse signals and the angular displacement signals of the first ring gear and the second ring gear, and analyze them to obtain the inclination reference point of the cylindrical template, so as to accurately obtain the inclination direction of the cylindrical template, and then rotate the telescopic cylinder to the inclination direction, and laterally support the cylindrical template, so as to realize the correction of the verticality of the cylindrical template.

[0026] 2. In this scheme, since the difference in radial distance between the two ends of the first arc groove or the second arc groove and the center of the annular seat is much smaller than the dimension in the extension direction of the first arc groove or the second arc groove, the rotational displacement of the first annular gear or the second annular gear is much larger than the radial displacement of the two first measuring rods or the two second measuring rods, and the radial dimension of the first detection gear and the second detection gear is much smaller than the radial dimension of the first annular gear and the second annular gear, thereby further amplifying the rotational displacement and achieving amplified representation of the displacement signal, which is beneficial to reducing measurement errors and improving the precision and accuracy of subsequent cylindrical template inclination direction detection.

[0027] 3. This scheme arranges cross bars at the inner ends of the first measuring rod and the second measuring rod, so that the two first measuring rods and the two second measuring rods can fully measure the displacement of the cylindrical formwork in the two vertical degrees of freedom in the horizontal plane; the rubber layer plays a certain shock-absorbing role, so that when the cylindrical formwork vibrates slightly due to the actual pouring construction, it will not cause frequent movements of the first measuring rod and the second measuring rod; at the same time, the rubber layer also has a certain elastic deformation ability, which provides displacement compensation for the micro-movement of the distance between the two cross bars at the inner ends of the two first measuring rods or the two second measuring rods.

[0028] 4. The linkage rod of the present invention can be fastened at any position in the extension direction of the strip positioning groove through the positioning block, so that the radial position of the first measuring rod and the second measuring rod on the annular seat can be adjusted during installation, thereby realizing the verticality detection and correction of cylindrical templates of different radial sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a top view of the verticality detection device of variable diameter concrete cylindrical formwork.

[0030] Figure 2 This is a bottom view of the verticality detection device for variable diameter concrete cylindrical formwork.

[0031] Figure 3 for Figure 1 Cross-sectional view of the AA area.

[0032] Figure 4 for Figure 1 Cross-sectional view of the middle BB region.

[0033] Figure 5 for Figure 1 Cross-sectional view of the middle CC region.

[0034] Figure 6 It is a structural schematic diagram of the first measuring rod and the linkage rod being fastened together.

[0035] Among them, 1. annular seat, 2. strip mounting groove, 3. first measuring rod, 4. second measuring rod, 5. first annular gear, 6. second annular gear, 7. annular sink, 8. annular convex ridge, 9. linkage rod, 10. first arc groove, 11. second arc groove, 12. first detection gear, 13. second detection gear, 14. first encoder, 15. rotating seat, 16. annular driving gear, 17. servo motor, 18. transmission gear, 19. column, 20. telescopic cylinder, 21. cross bar, 22. strip positioning groove, 23. positioning block, 24. sliding hole, 25. slider, 26. threaded hole, 27. screw, 28. cone head, 29. push ramp, 30. elastic rubber ring, 31. concave and convex stripes, 32. cylindrical template. DETAILED DESCRIPTION

[0036] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0037] like Figures 1 to 6As shown, the verticality detection device of the variable diameter concrete cylindrical formwork 32 of the present scheme includes an annular seat 1, four strip mounting grooves 2 are opened on the circumference of the annular seat 1, and the four strip mounting grooves 2 are arranged in a cross shape and are respectively located in the radial direction of the annular seat 1, and the first measuring rods 3 are respectively slidably penetrated in the two strip mounting grooves 2 located on the opposite sides of the annular seat 1, and the lateral openings of the two strip mounting grooves 2 where the two first measuring rods 3 are located are arranged on the upper end surface of the annular seat 1; the second measuring rods 4 are respectively slidably penetrated in the other two strip mounting grooves 2 located on the opposite sides of the annular seat 1, and the lateral openings of the two strip mounting grooves 2 where the two second measuring rods 4 are located are arranged on the lower end surface of the annular seat 1; the upper and lower end surfaces of the annular seat 1 are respectively movably provided with a first annular gear 5 and a second annular gear 6, specifically, an annular sink 7 is arranged on the outer side surfaces of the first annular gear 5 and the second annular gear 6, and annular convex ridges 8 are arranged at both ends of the annular seat 1, and the annular sink 7 and the annular convex ridge 8 are rotatably connected through bearings.

[0038] The two first measuring rods 3 and the two second measuring rods 4 are respectively connected to the first ring gear 5 and the second ring gear 6 through a linkage part and the first ring gear 5 and the second ring gear 6 are respectively driven to rotate through the axial displacement of the first measuring rod 3 and the second measuring rod 4; wherein the linkage part includes a linkage rod 9 connected to the first measuring rod 3 and the second measuring rod 4, and the first arc groove 10 and the second arc groove 11 are respectively arranged on both sides of the first ring gear 5 and the second ring gear 6, the two linkage rods 9 connected to the two first measuring rods 3 are respectively slidably arranged in the first arc groove 10 and the second arc groove 11 on the first ring gear 5, and the two linkage rods 9 connected to the two second measuring rods 4 are respectively slidably arranged in the first arc groove 10 and the second arc groove 11 on the second ring gear 6.

[0039] The annular seat 1 is provided with a first detection gear 12 and a second detection gear 13 which are respectively meshed with the first annular gear 5 and the second annular gear 6, and the first detection gear 12 and the second detection gear 13 are respectively connected to the first encoder 14 and the second encoder in transmission; a rotating seat 15 is provided on the outer side of the annular seat 1 through a bearing sleeve, and an annular driving gear 16 is provided at the lower end of the rotating seat 15, and a servo motor 17 is provided on the annular seat 1, and a transmission gear 18 which is meshed with the annular driving gear 16 is provided on the rotating shaft of the servo motor 17, so that the servo motor 17 can drive and accurately adjust the rotation angle of the rotating seat 15; a pushing mechanism for laterally pushing the cylindrical template 32 and correcting its verticality is provided on the rotating seat 15, and the pushing mechanism includes a column 19 arranged on the rotating seat 15, and a telescopic cylinder 20 is provided on the column 19, and the telescopic direction is located in the radial direction of the rotating seat 15, and the telescopic end of the telescopic cylinder 20 points to the center of the rotating seat 15; the first encoder 14, the second encoder, the servo motor 17 and the pushing mechanism are all electrically connected to the controller.

[0040] In this scheme, two first measuring rods 3 and two second measuring rods 4 can respectively measure the inclination micro-motion of the cylindrical template 32 in two vertical degrees of freedom in the horizontal plane, that is, realize the real-time detection of the verticality of the cylindrical template 32; at the same time, the radial micro-motion displacement of the first measuring rod 3 and the second measuring rod 4 can be characterized by the rotation of the first ring gear 5 and the second ring gear 6 respectively, and then the first encoder 14 and the second encoder can detect the forward and reverse signals and the angular displacement signals of the first ring gear 5 and the second ring gear 6, and analyze them to obtain the inclination reference point of the cylindrical template 32, so as to accurately obtain the inclination direction of the cylindrical template 32, and then rotate the telescopic cylinder 20 to the inclination direction, and laterally support the cylindrical template 32, so as to realize the correction of the verticality of the cylindrical template 32.

[0041] As an optional embodiment, the first arc groove 10 and the second arc groove 11 are arranged in mirror symmetry, and the two ends of the first arc groove 10 or the second arc groove 11 are not equal in radial distance from the center of the annular seat 1; in this scheme, when the two first measuring rods 3 or the two second measuring rods 4 undergo radial displacement, the linkage rod 9 thereon will also undergo radial displacement, and the radially displaced linkage rod 9 will slide in the first arc groove 10 and the second arc groove 11, thereby driving the first ring gear 5 or the second ring gear 6 to rotate; at the same time, the first arc groove 10 and the second arc groove 11 are arranged in mirror symmetry, so that the two linkage rods 9 on the two first measuring rods 3 or the two second measuring rods 4 have opposite sliding matching relationships with the first arc groove 10 and the second arc groove 11, respectively, thereby realizing the same-direction displacement of the two first measuring rods 3 or the two second measuring rods 4;

[0042] In particular, in this scheme, since the difference in radial distance between the two ends of the first arc groove 10 or the second arc groove 11 and the center of the annular seat 1 is much smaller than the dimension in the extension direction of the first arc groove 10 or the second arc groove 11, the rotational displacement of the first ring gear 5 or the second ring gear 6 is much larger than the radial displacement of the two first measuring rods 3 or the two second measuring rods 4, so that when the first measuring rod 3 or the second measuring rod 4 has a smaller displacement, the first ring gear 5 or the second ring gear 6 can also produce a larger rotational displacement, and the radial dimensions of the first detection gear 12 and the second detection gear 13 are much smaller than the radial dimensions of the first ring gear 5 and the second ring gear 6, thereby further amplifying the rotational displacement and thus achieving an amplified representation of the displacement signal, which is beneficial to reducing measurement errors and improving the precision and accuracy of subsequent detection of the inclination direction of the cylindrical template 32.

[0043] As an optional embodiment, a cross bar 21 is provided at the inner end of the first measuring rod 3 and the second measuring rod 4. The cross bar 21 extends horizontally and is vertically arranged with the first measuring rod 3 or the second measuring rod 4 connected thereto. The cross bar 21 enables the two first measuring rods 3 and the two second measuring rods 4 to fully measure the displacement of the cylindrical formwork 32 in two vertical degrees of freedom in the horizontal plane; the outer wall of the cross bar 21 is covered with a rubber layer; the rubber layer plays a certain shock-absorbing role, so that when the cylindrical formwork 32 vibrates slightly due to actual pouring construction, it will not cause frequent movements of the first measuring rod 3 and the second measuring rod 4; at the same time, the rubber layer also has a certain elastic deformation ability, which provides displacement compensation for the micro-movement of the spacing between the two cross bars 21 at the inner ends of the two first measuring rods 3 or the two second measuring rods 4.

[0044] As an optional embodiment, a strip-shaped positioning groove 22 is provided in the extension direction of the first measuring rod 3 and the second measuring rod 4, and a positioning block 23 for being fastened to the strip positioning groove 22 is provided at one end of the linkage rod 9, and a sliding hole 24 is provided on the side of the positioning block 23, and two sliding blocks 25 are slidably engaged at both ends of the sliding hole 24, and a threaded hole 26 connected to the sliding hole 24 is provided in the linkage rod 9, and a screw 27 is engaged on the threaded hole 26, and a cone head 28 is provided at the inner end of the screw 27, and a push inclined surface 29 is provided at the inner end of the sliding block 25 for sliding engagement with the side of the cone head 28.

[0045] As an optional embodiment, annular ridges 8 are provided at both ends of the sliding hole 24, an annular groove matching the annular ridge 8 is provided at the outer end of the slider 25, and an elastic rubber ring 30 is provided between the annular ridge 8 and the annular groove; the outer end face of the slider 25 and the two side faces of the strip positioning groove 22 are provided with concave and convex stripes 31.

[0046] The linkage rod 9 of the present scheme can be fastened in the strip positioning groove 22 through the positioning block 23. Specifically, the positioning block 23 is inserted into the strip positioning groove 22 and the screw 27 is rotated to make the cone head 28 slide on the push inclined surface 29, and push the sliders 25 on both sides thereof to slide outward respectively until the concave and convex stripes 31 on the outer end surface of the slider 25 are tightly pressed against the concave and convex stripes 31 on the two side surfaces of the strip positioning groove 22, and the fastening connection can be achieved; wherein, the annular convex ridge 8 can prevent the slider 25 from slipping out of the sliding hole 24, and the elastic rubber ring 30 can make the slider 25 automatically slide and reset to its inner end while playing a flexible contact; in the present scheme, since the linkage rod 9 can be fastened at any position in the extension direction of the first measuring rod 3 and the second measuring rod 4, the radial position of the first measuring rod 3 and the second measuring rod 4 on the annular seat 1 can be adjusted during installation, thereby realizing the verticality detection and correction of cylindrical templates 32 with different radial sizes.

[0047] The present invention also provides a method for calibrating a verticality detection device for a variable diameter concrete cylindrical formwork 32, which comprises the following steps:

[0048] S1: The annular seat 1 is sleeved on the built cylindrical template 32 with a gap, and the annular seat 1 is fixed to the scaffolding around the cylindrical template 32 through a plurality of connecting pieces, and the annular seat 1 is coaxially arranged with the cylindrical template 32;

[0049] S2: After the two first measuring rods 3 and the second measuring rod 4 are respectively inserted into the four strip-shaped installation grooves 2, the cross bars 21 are installed at the inner ends of the first measuring rods 3 and the second measuring rods 4, and the middle parts of the four cross bars 21 are respectively abutted against the four sides of the cylindrical template 32;

[0050] S3: The four linkage rods 9 are respectively passed through the middle of the two first arc grooves 10 and the two second arc grooves 11 and are fastened to the strip positioning groove 22 through the positioning block 23, so that the first arc groove 10 and the second arc groove 11 can rotate forward and reverse relative to the linkage rod 9; then the first encoder 14 and the second encoder are zeroed;

[0051] S4: By analyzing the positive and negative signals and the angular displacement signals of the first encoder 14 and the second encoder, the horizontal direction of the inclination of the cylindrical template 32 is obtained; the specific analysis method includes:

[0052] A1: Construct a plane rectangular coordinate system according to the cross lines where the two first measuring rods 3 and the two second measuring rods 4 are located, and find the tilt reference point O of the cylindrical template 32 in the plane rectangular coordinate system. 斜 ;

[0053] When the first encoder 14 and the second encoder both rotate forward, the tilt reference point O 斜 The coordinates are (d1, d2); when the first encoder 14 and the second encoder are both reversed, the tilt reference point O 斜 The coordinates are (-d1, -d2); when the first encoder 14 rotates forward and the second encoder rotates reversely, the tilt reference point O 斜 The coordinates are (d1, -d2); when the first encoder 14 is reversed and the second encoder is forward, the tilt reference point O 斜 The coordinates are (-d1, d2), where d1 is the angular displacement of the first encoder 14, and d2 is the angular displacement of the second encoder;

[0054] A2: Coordinate origin and tilt reference point O 斜 The horizontal direction of the line between them is the horizontal direction in which the cylindrical template 32 is inclined;

[0055] S5: The rotating seat 15 is driven to rotate by the servo motor 17 until the telescopic cylinder 20 is located in the horizontal direction of the inclination of the cylindrical template 32, and the cylindrical template 32 is laterally supported by the telescopic cylinder 20 until the first encoder 14 and the second encoder are reset to zero, so that the verticality of the cylindrical template 32 can be corrected.

[0056] This solution can measure the inclination micro-motion of the cylindrical template 32 in two vertical degrees of freedom in the horizontal plane through two first measuring rods 3 and two second measuring rods 4, and characterize the micro-motion displacement of the cylindrical template 32 in the two vertical degrees of freedom through the angular displacement signal amplification of the first encoder 14 and the second encoder, thereby reducing the measurement error and improving the measurement accuracy; and characterize the displacement direction of the cylindrical template 32 in the two vertical degrees of freedom through the positive and reverse signals of the first encoder 14 and the second encoder, and then accurately find the horizontal direction of the inclination of the cylindrical template 32 by constructing a plane rectangular coordinate system, and use the telescopic cylinder 20 to carry out targeted lateral support on the cylindrical template 32 to achieve the correction of the verticality of the cylindrical template 32.

Claims

1. A device for detecting the verticality of a variable diameter concrete cylindrical formwork, characterized in that: The invention comprises an annular seat (1), wherein four strip-shaped mounting grooves (2) are provided on the circumference of the annular seat (1), and the four strip-shaped mounting grooves (2) are arranged in a cross shape and are respectively located in the radial direction of the annular seat (1); a first measuring rod (3) is slidably inserted into two of the strip-shaped mounting grooves (2) located on the opposite sides of the annular seat (1); a second measuring rod (4) is slidably inserted into the other two of the strip-shaped mounting grooves (2) located on the opposite sides of the annular seat (1); a first annular gear (5) and a second annular gear (6) are movably provided on the upper and lower end surfaces of the annular seat (1); the two first measuring rods (3) and the two second measuring rods (4) are respectively connected to the first annular gear (5) and the second annular gear (6) through linkage parts, and the first annular gear (5) and the second annular gear (6) are respectively driven to rotate by the axial displacement of the first measuring rod (3) and the second measuring rod (4); The annular seat (1) is provided with a first detection gear (12) and a second detection gear (13) which are respectively meshed with the first annular gear (5) and the second annular gear (6); the first detection gear (12) and the second detection gear (13) are respectively transmission-connected with the first encoder (14) and the second encoder; The outer movable sleeve of the annular seat (1) is provided with a rotating seat (15) which is transmission-connected to a servo motor (17); the rotating seat (15) is provided with a pushing mechanism for laterally pushing the cylindrical template (32) and correcting its verticality; the first encoder (14), the second encoder, the servo motor (17) and the pushing mechanism are all electrically connected to a controller.

2. The device for detecting verticality of a variable diameter concrete cylindrical formwork according to claim 1 is characterized in that: The lateral openings of the two strip-shaped mounting grooves (2) where the two first measuring rods (3) are located are arranged on the upper end surface of the annular seat (1), and the lateral openings of the two strip-shaped mounting grooves (2) where the two second measuring rods (4) are located are arranged on the lower end surface of the annular seat (1). The linkage member comprises a linkage rod (9) connected to the first measuring rod (3) and the second measuring rod (4). Both sides of the first ring gear (5) and the second ring gear (6) are respectively provided with a first arc groove (10) and a second arc groove (11). The two linkage rods (9) connected to the two first measuring rods (3) are respectively slidably arranged in the first arc groove (10) and the second arc groove (11) on the first ring gear (5), and the two linkage rods (9) connected to the two second measuring rods (4) are respectively slidably arranged in the first arc groove (10) and the second arc groove (11) on the second ring gear (6).

3. The device for detecting verticality of a variable diameter concrete cylindrical formwork according to claim 2 is characterized in that: The first arc-shaped groove (10) and the second arc-shaped groove (11) are arranged in mirror symmetry, and the radial distances between the two ends of the first arc-shaped groove (10) or the second arc-shaped groove (11) and the center of the annular seat (1) are unequal.

4. The device for detecting verticality of a variable diameter concrete cylindrical formwork according to claim 2 is characterized in that: The inner ends of the first measuring rod (3) and the second measuring rod (4) are both provided with a cross bar (21), the cross bar (21) extends horizontally and is vertically arranged with the first measuring rod (3) or the second measuring rod (4) connected thereto, and the outer side wall of the cross bar (21) is covered with a rubber layer.

5. The device for detecting verticality of a variable diameter concrete cylindrical formwork according to claim 2 is characterized in that: The first measuring rod (3) and the second measuring rod (4) are both provided with strip-shaped positioning grooves (22) in their extending directions; a positioning block (23) for being fastened to the strip-shaped positioning groove (22) is provided at one end of the linkage rod (9); a sliding hole (24) is provided on the side of the positioning block (23); two sliding blocks (25) are slidably engaged at both ends of the sliding hole (24); a threaded hole (26) connected to the sliding hole (24) is provided in the linkage rod (9); a screw rod (27) is engaged on the threaded hole (26); a cone head (28) is provided at the inner end of the screw rod (27); and a push inclined surface (29) slidably engaged with the side of the cone head (28) is provided at the inner end of the sliding block (25).

6. The device for detecting verticality of a variable diameter concrete cylindrical formwork according to claim 5 is characterized in that: Both ends of the sliding hole (24) are provided with annular ridges (8), the outer end of the sliding block (25) is provided with an annular groove matching the annular ridges (8), and an elastic rubber ring (30) is provided between the annular ridges (8) and the annular grooves.

7. The device for detecting verticality of a variable diameter concrete cylindrical formwork according to claim 5 is characterized in that: The outer end surface of the slider (25) and the two side surfaces of the strip-shaped positioning groove (22) are both provided with concave-convex stripes (31).

8. The device for detecting verticality of a variable diameter concrete cylindrical formwork according to claim 5 is characterized in that: The pushing mechanism comprises a column (19) arranged on a rotating seat (15), and a telescopic oil cylinder (20) is arranged on the column (19) and the telescopic direction is located in the radial direction of the rotating seat (15), and the telescopic end of the telescopic oil cylinder (20) points to the center of the rotating seat (15).

9. A correction method using the verticality detection device for variable diameter concrete cylindrical formwork according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: The annular seat (1) is sleeved on the built cylindrical template (32) with a gap, and the annular seat (1) is fixed to the scaffolding around the cylindrical template (32) through a plurality of connecting pieces, and the annular seat (1) and the cylindrical template (32) are arranged coaxially; S2: After the two first measuring rods (3) and the second measuring rod (4) are respectively inserted into the four strip-shaped installation grooves (2), a cross bar (21) is installed at the inner ends of the first measuring rod (3) and the second measuring rod (4), and the middle parts of the four cross bars (21) are respectively in contact with the four sides of the cylindrical template (32); S3: The four linkage rods (9) are respectively passed through the middle of the two first arc-shaped grooves (10) and the two second arc-shaped grooves (11) and are fastened to the strip-shaped positioning grooves (22) through the positioning blocks (23), and then the first encoder (14) and the second encoder are zeroed; S4: by analyzing the positive and negative signals and the angular displacement signal of the first encoder (14) and the second encoder, the horizontal direction of the inclination of the cylindrical template (32) is obtained; S5: The servo motor (17) is used to drive the rotating seat (15) to rotate until the telescopic cylinder (20) is located in the horizontal direction of the inclination of the cylindrical template (32), and the telescopic cylinder (20) is used to laterally support the cylindrical template (32) until the first encoder (14) and the second encoder are reset to zero, thereby realizing the correction of the verticality of the cylindrical template (32).

10. The calibration method of the variable diameter concrete cylindrical formwork verticality detection device according to claim 9 is characterized in that: The specific analysis method in step S4 includes: A1: Construct a plane rectangular coordinate system according to the cross lines where the two first measuring rods (3) and the two second measuring rods (4) are located, and find the tilt reference point O of the cylindrical template (32) in the plane rectangular coordinate system. 斜 ; When the first encoder (14) and the second encoder both rotate forward, the tilt reference point O 斜 The coordinates are (d1, d2); when the first encoder (14) and the second encoder are both reversed, the tilt reference point O 斜 The coordinates of the first encoder (14) are (-d1, -d2); when the first encoder (14) rotates forward and the second encoder rotates reversely, the tilt reference point O 斜 The coordinates are (d1, -d2); when the first encoder (14) is reversed and the second encoder is forward, the tilt reference point O 斜 The coordinates are (-d1, d2), where d1 is the angular displacement of the first encoder (14), and d2 is the angular displacement of the second encoder; A2: Coordinate origin and tilt reference point O 斜 The horizontal direction of the line between them is the horizontal direction in which the cylindrical template (32) is inclined.

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