A positioning system for the arch feet of a long-span basket handle bridge

Abstract

The present invention discloses a positioning system for the arch feet of a long-span basket arch bridge, which includes a bottom plate, a plurality of mounting rods, a plurality of first hydraulic cylinders and a plurality of pressing plates. The plurality of mounting rods are symmetrically mounted in pairs on the lower wall surface of the bottom plate, and the plurality of first hydraulic cylinders are respectively mounted at one end of the plurality of mounting rods. In the present invention, the bottom plate is placed on the arch seat. By extending a plurality of first hydraulic cylinders, a plurality of pressing plates are pressed against the arch seat, so that the bottom plate is located at the center of the arch seat, and the system is fixed, shortening the working hours used when installing the system. The tensioning screw rod is rotated by the power unit, and the distance between the two side adjusting parts is adjusted by the moving part to make the distance between the adjusting parts match the width of the arch feet. Subsequently, a plurality of pairs of holding parts are adjusted according to the installation height of the arch feet and the arc trend of the arch feet. After the arch feet are placed on the plurality of pairs of holding parts, they are exactly at the installation position, facilitating the operation and construction of the system.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction, and particularly to a positioning system for the arch feet of a long-span basket-shaped bridge. Background Art

[0002] For the construction of the embedded section of the arch feet of a basket-shaped bridge, it is necessary to manually install and build the positioning brackets by operators in advance according to the design requirements. The embedded section of the arch feet is hoisted by a truck crane. During hoisting, the operator needs to rely on the naked eye to align the embedded section of the arch feet with the positioning brackets for placement. In this process, the working hours used to determine the installation position of the positioning brackets are relatively long, and the process of building the positioning brackets is cumbersome. Especially for a long-span basket-shaped bridge, there is no obvious alignment prompt sign when aligning the embedded section of the arch feet with the positioning brackets, resulting in too low work efficiency and affecting the project construction progress. Summary of the Invention

[0003] The purpose of the present invention is to provide a positioning system for the arch feet of a long-span basket-shaped bridge, which solves the problem that there is no obvious alignment prompt sign when aligning the embedded section of the arch feet with the positioning brackets, resulting in too low work efficiency and affecting the project construction progress, reduces the working hours used to determine the installation position of the positioning brackets, and simplifies the process of building the positioning brackets at the same time.

[0004] To this end, the technical solution of the present invention is: a positioning system for the arch feet of a long-span basket-shaped bridge, including a bottom plate, a plurality of mounting rods, a plurality of first hydraulic cylinders, and a plurality of pressing plates. The plurality of mounting rods are symmetrically installed in pairs on the lower wall surface of the bottom plate. The plurality of first hydraulic cylinders are respectively installed at one end of the plurality of mounting rods. The plurality of pressing plates are respectively installed at the telescopic ends of the plurality of first hydraulic cylinders. A positioning structure is provided on the bottom plate;

[0005] The positioning structure includes: a power box, a tension rod, a power part, a moving part, a plurality of pairs of adjusting parts, a plurality of pairs of holding parts, and two anti-wear parts;

[0006] The power box is installed on the upper wall surface of the bottom plate. The tension rod is movably inserted into the power box. The power part is installed on the tension rod and the power box. The moving part is installed on the tension rod and the upper wall surface of the bottom plate. The plurality of pairs of adjusting parts are installed on the moving part. The plurality of pairs of holding parts are respectively installed on the plurality of pairs of adjusting parts. The two anti-wear parts are installed on the lower wall surface of the bottom plate;

[0007] Each of the plurality of pairs of holding parts includes: two pairs of extension rods, two L-shaped support rods, a distance measuring sensor, two alarm lights, two infrared transmitters, and two infrared sensors;

[0008] The two pairs of extension rods are installed on the two adjustment parts, the two L-shaped support rods are symmetrically installed on one end of the two pairs of extension rods, the ranging sensor is inserted on one of the two L-shaped support rods, the two warning lights are respectively installed on one end of the two L-shaped support rods, the two infrared transmitters are respectively installed on one end of the two warning lights, and the two infrared sensors are respectively installed on one end of the two infrared transmitters.

[0009] Preferably, one end of the distance measuring sensor is aligned with the inner wall surface of the L-shaped support rod.

[0010] Preferably, the power unit comprises: a motor, a driving gear and a driven gear;

[0011] The motor is installed on the inner wall of the power box, the driving gear is sleeved on the driving end of the motor, and the driven gear is sleeved on the drawing rod.

[0012] Preferably, the driving gear and the driven gear are meshed with each other.

[0013] Preferably, the moving part comprises: two moving blocks, two guide grooves, two slide grooves, two pairs of slide blocks and four connecting rods;

[0014] The two moving blocks are symmetrically and movably mounted on the drawing rods, the two guide grooves are installed on the base plate, and the two moving blocks are movably mounted on the two guide grooves respectively, the two slide grooves are installed on the base plate, and the two slide grooves are symmetrically installed with the power box as the center, the two pairs of sliders are movably mounted on the two slide grooves respectively, the four connecting rods are symmetrically installed on the two moving blocks in pairs, and one end of the four connecting rods is installed on the two pairs of sliders.

[0015] Preferably, each of the adjustment parts comprises: a fixing seat, a second hydraulic cylinder, a lifting column and a stabilizing assembly;

[0016] The second hydraulic cylinder is installed on a fixing seat, the lifting column is installed on the telescopic end of the second hydraulic cylinder, and the stabilizing component is installed on one end of the lifting column.

[0017] Preferably, the stabilizing assembly comprises: a sleeve, a plurality of third hydraulic cylinders and a plurality of clamping plates;

[0018] The sleeve is installed at one end of the lifting column, a plurality of the third hydraulic cylinders are installed on the inner wall surface of the sleeve in a circular array, and a plurality of the clamping plates are respectively installed on the telescopic ends of a plurality of the third hydraulic cylinders.

[0019] Preferably, a plurality of the clamping plates are provided with anti-slip rubber pads.

[0020] Preferably, guide rods are provided on the two slide grooves, and the guide rods are movably inserted on a pair of sliding blocks.

[0021] Preferably, the two anti-wear parts each include: a mounting seat, a plurality of hemispherical seats and a plurality of balls;

[0022] The mounting seat is mounted on the lower wall surface of the bottom plate, a plurality of hemispherical seats are embedded in the lower wall surface of the mounting seat in an array, and a plurality of balls are movably mounted on the plurality of hemispherical seats respectively.

[0023] The beneficial effects of the present invention are as follows: by utilizing the arch foot positioning system of the large-span basket bridge, the base plate is placed on the arch seat, and the arch seat is pressed by extending the first hydraulic cylinders so that the base plate is located at the center of the arch seat, so that the system is fixed, and the working hours consumed in the installation of the system are shortened; the pair of drawing rods are rotated by the power unit, and the distance between the adjustment parts on both sides is adjusted by the moving unit so that the distance between the adjustment parts matches the width of the arch foot; then, the pairs of supporting parts are adjusted according to the installation height of the arch foot and the arc trend of the arch foot, so that after the arch foot is placed on the pairs of supporting parts, it is exactly in the installation position, which is convenient for the operation and construction of the system; the infrared sensor is installed at the corresponding position of the arch foot according to the theoretical size; when the arch foot is hoisted, when the infrared sensor on the arch foot corresponds to the infrared transmitter on the L-shaped support rod, the alarm light works to remind the staff to align the pre-buried section of the arch foot with the system, thereby improving the work efficiency and accelerating the progress of the project construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the front view of the present invention.

[0025] Figure 2 It is a side view of the present invention.

[0026] Figure 3 It is a top view of the moving part of the present invention.

[0027] Figure 4 It is a bottom view of the adjustment part of the present invention.

[0028] Figure 5 It is a bottom view of the wear-resistant portion of the present invention.

[0029] Figure 6 for Figure 1 A partial enlarged view of .

[0030] In the figure: 1, base plate, 2, mounting rod, 3, first hydraulic cylinder, 4, pressure plate, 5, power box, 6, drawing rod, 7, extension rod, 8, L-shaped support rod, 9, distance sensor, 10, alarm light, 11, infrared transmitter, 12, infrared sensor, 13, motor, 14, driving gear, 15, driven gear, 16, moving block, 17, guide groove, 18, slide groove, 19, slider, 20, connecting rod, 21, fixed seat, 22, second hydraulic cylinder, 23, lifting column, 24, sleeve, 25, third hydraulic cylinder, 26, clamping plate, 27, anti-slip rubber pad, 28, guide rod, 29, mounting seat, 30, hemispherical seat, 31, ball bearing. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings. Figures 1-6 As shown, a large-span basket bridge arch foot positioning system includes a base plate 1, a plurality of mounting rods 2, a plurality of first hydraulic cylinders 3 and a plurality of pressure plates 4. The plurality of mounting rods 2 are symmetrically installed on the lower wall of the base plate 1 in pairs, the plurality of first hydraulic cylinders 3 are respectively installed on one end of the plurality of mounting rods 2, the plurality of pressure plates 4 are respectively installed on the telescopic ends of the plurality of first hydraulic cylinders 3, and a positioning structure is provided on the base plate 1.

[0032] It should be noted that: the bottom plate 1 is placed on the arch seat, and then a plurality of first hydraulic cylinders 3 are extended until a plurality of pressing plates 4 press the arch seat, so that the bottom plate 1 is located at the center of the arch seat, and the bottom plate 1 is fixed.

[0033] In the specific implementation process, the positioning structure may preferably adopt the following structure, which includes: a power box 5, a wire drawing rod 6, a power part, a moving part, several pairs of adjustment parts, several pairs of supporting parts and two anti-wear parts; the power box 5 is installed on the upper wall surface of the base plate 1, the wire drawing rod 6 is movably inserted on the power box 5, the power part is installed on the wire drawing rod 6 and the power box 5, the moving part is installed on the wire drawing rod 6 and the upper wall surface of the base plate 1, several pairs of adjustment parts are installed on the moving part, several pairs of supporting parts are respectively installed on several pairs of adjustment parts, and two anti-wear parts are installed on the lower wall surface of the base plate 1.

[0034] It should be noted that: the drawing rod 6 is rotated by the power part, and the distance between the adjusting parts on both sides is adjusted by the moving part to match the width of the arch foot, and then several pairs of supporting parts are adjusted according to the installation height of the arch foot and the arc trend, so that the arch foot is placed on several pairs of supporting parts and is exactly in the installation position.

[0035] In the specific implementation process, several pairs of supporting parts can preferably adopt the following structure, which includes: two pairs of extension rods 7, two L-shaped support rods 8, ranging sensors 9, two warning lights 10, two infrared transmitters 11 and two infrared sensors 12; the two pairs of extension rods 7 are installed on two adjustment parts, the two L-shaped support rods 8 are symmetrically installed on one end of the two pairs of extension rods 7, the ranging sensor 9 is inserted on one of the two L-shaped support rods 8, the two warning lights 10 are respectively installed on one end of the two L-shaped support rods 8, the two infrared transmitters 11 are respectively installed on one end of the two warning lights 10, and the two infrared sensors 12 are respectively installed on one end of the two infrared transmitters 11.

[0036] When in use, two infrared sensors 12 are installed at corresponding positions of the arch foot according to the theoretical size. When the arch foot is hoisted, when the infrared sensor 12 on the arch foot corresponds to the infrared transmitter 11 on the L-shaped support rod 8, the alarm light 10 works. At this time, the arch foot is placed vertically until the arch foot is placed on the L-shaped support rod 8.

[0037] Preferably, one end of the distance measuring sensor 9 is aligned with the inner wall surface of the L-shaped support rod 8 .

[0038] In the specific implementation process, the power unit can preferably adopt the following structure, which includes: a motor 13, a driving gear 14 and a driven gear 15; the motor 13 is installed on the inner wall of the power box 5, the driving gear 14 is mounted on the driving end of the motor 13, and the driven gear 15 is mounted on the wire drawing rod 6.

[0039] Preferably, the driving gear 14 and the driven gear 15 are meshed with each other, and when the motor 13 works, the driving gear 14 rotates, the driven gear 15 rotates, and the driven gear 15 drives the wire drawing rod 6 to rotate.

[0040] During the specific implementation process, the moving part may preferably adopt the following structure, which includes: two moving blocks 16, two guide grooves 17, two slide grooves 18, two pairs of sliders 19 and four connecting rods 20; the two moving blocks 16 are symmetrically and movably mounted on the drawing rod 6, the two guide grooves 17 are installed on the base plate 1, and the two moving blocks 16 are movably mounted on the two guide grooves 17, the two slide grooves 18 are installed on the base plate 1, and the two slide grooves 18 are symmetrically installed with the power box 5 as the center, the two pairs of sliders 19 are movably mounted on the two slide grooves 18, the four connecting rods 20 are symmetrically installed on the two moving blocks 16, and one end of the four connecting rods 20 is installed on the two pairs of sliders 19.

[0041] It should be noted that: the width of the arch foot is positioned to a set value, the drawing rod 6 is rotated, the two moving blocks 16 move on the two guide grooves 17, and under the action of the four connecting rods 20, the two pairs of sliders 19 move in the two slide grooves 18 until the distance value detected by the distance sensor 9 reaches the set value and the motor 13 stops working.

[0042] During the specific implementation process, each adjustment part can preferably adopt the following structure, which includes: a fixed seat 21, a second hydraulic cylinder 22, a lifting column 23 and a stabilizing component; the second hydraulic cylinder 22 is installed on the fixed seat 21, the lifting column 23 is installed at the telescopic end of the second hydraulic cylinder 22, and the stabilizing component is installed at one end of the lifting column 23.

[0043] It should be noted that the six fixing seats 21 are respectively mounted on the two moving blocks 16 and the two pairs of slide blocks 19 , and the second hydraulic cylinder 22 is extended and retracted, so that the height of the L-shaped support rod 8 can be adjusted.

[0044] In the specific implementation process, the stabilization component may preferably adopt the following structure, which includes: a sleeve 24, a plurality of third hydraulic cylinders 25 and a plurality of clamping plates 26; the sleeve 24 is installed at one end of the lifting column 23, and a plurality of third hydraulic cylinders 25 are installed in a circular array on the inner wall surface of the sleeve 24, and a plurality of clamping plates 26 are respectively installed on the telescopic ends of the plurality of third hydraulic cylinders 25.

[0045] It should be noted that: the second hydraulic cylinder 22 is extended and retracted, and the lifting column 23 drives the sleeve 24 to move. When the height of the L-shaped support rod 8 reaches the target position, the third hydraulic cylinders 25 are extended to make the clamping plates 26 clamp the fixing seat 21.

[0046] Preferably, a plurality of clamping plates 26 are provided with anti-skid rubber pads 27 for anti-skid and preventing the plurality of clamping plates 26 and the fixing seat 21 from wearing each other.

[0047] Preferably, guide rods 28 are provided on the two slide grooves 18 , and the guide rods 28 are movably inserted on a pair of sliders 19 .

[0048] In the specific implementation process, both anti-wear parts can preferably adopt the following structure, which includes: a mounting seat 29, a plurality of hemispherical seats 30 and a plurality of ball bearings 31; the mounting seat 29 is installed on the lower wall surface of the base plate 1, and a plurality of hemispherical seats 30 are embedded in the lower wall surface of the mounting seat 29 in an array shape, and a plurality of ball bearings 31 are movably installed on the plurality of hemispherical seats 30 respectively.

[0049] It should be noted that: the first hydraulic cylinders 3 are extended, and the base plate 1 rotates on the hemispherical seats 30 through the balls 31 and moves until the base plate 1 is located at the center of the arch seat. The balls 31 prevent the base plate 1 and the arch seat from wearing each other.

[0050] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A large-span basket arch springing positioning system, comprising a bottom plate (1), a plurality of mounting rods (2), a plurality of first hydraulic cylinders (3) and a plurality of pressing plates (4). The plurality of mounting rods (2) are symmetrically mounted in pairs on the lower wall surface of the bottom plate (1). The plurality of first hydraulic cylinders (3) are respectively mounted at one end of the plurality of mounting rods (2). The plurality of pressing plates (4) are respectively mounted at the telescopic ends of the plurality of first hydraulic cylinders (3). Characterized in that, a positioning structure is provided on the bottom plate (1); the positioning structure includes: a power box (5), a tension rod (6), a power part, a moving part, a plurality of pairs of adjusting parts, a plurality of pairs of holding parts and two anti-wear parts; the power box (5) is mounted on the upper wall surface of the bottom plate (1). The tension rod (6) is movably inserted into the power box (5). The power part is mounted on the tension rod (6) and the power box (5). The moving part is mounted on the tension rod (6) and the upper wall surface of the bottom plate (1). The plurality of pairs of adjusting parts are mounted on the moving part. The plurality of pairs of holding parts are respectively mounted on the plurality of pairs of adjusting parts. The two anti-wear parts are mounted on the lower wall surface of the bottom plate (1); each of the plurality of pairs of holding parts includes: two pairs of extension rods (7), two L-shaped support rods (8), a distance measuring sensor (9), two warning lights (10), two infrared emitters (11) and two infrared sensors (12); the two pairs of extension rods (7) are mounted on the two adjusting parts. The two L-shaped support rods (8) are symmetrically mounted at one end of the two pairs of extension rods (7). The distance measuring sensor (9) is inserted into one of the two L-shaped support rods (8). The two warning lights (10) are respectively mounted at one end of the two L-shaped support rods (8). The two infrared emitters (11) are respectively mounted at one end of the two warning lights (10). The two infrared sensors (12) are respectively mounted at one end of the two infrared emitters (11); the power part includes: a motor (13), a driving gear (14) and a driven gear (15). The motor (13) is mounted on the inner side wall surface of the power box (5). The driving gear (14) is sleeved on the driving end of the motor (13). The driven gear (15) is sleeved on the tension rod (6); The moving part includes: two moving blocks (16), two guide grooves (17), two sliding grooves (18), two pairs of sliding blocks (19), and four connecting rods (20); the two moving blocks (16) are symmetrically and movably sleeved on the pull screw rod (6), the two guide grooves (17) are installed on the bottom plate (1), and the two moving blocks (16) are respectively movably installed on the two guide grooves (17), the two sliding grooves (18) are installed on the bottom plate (1), and the two sliding grooves (18) are symmetrically installed with the power box (5) as the center, the two pairs of sliding blocks (19) are respectively movably installed on the two sliding grooves (18), the four connecting rods (20) are symmetrically installed in pairs on the two moving blocks (16), and one ends of the four connecting rods (20) are installed on the two pairs of sliding blocks (19); Each adjusting part includes: a fixed seat (21), a second hydraulic cylinder (22), a lifting column (23), and a stabilizing component; the second hydraulic cylinder (22) is installed on the fixed seat (21), the lifting column (23) is installed on the telescopic end of the second hydraulic cylinder (22), and the stabilizing component is installed at one end of the lifting column (23); The stabilizing component includes: a sleeve (24), a plurality of third hydraulic cylinders (25), and a plurality of clamping plates (26); the sleeve (24) is installed at one end of the lifting column (23), the plurality of third hydraulic cylinders (25) are circularly and arrayedly installed on the inner side wall surface of the sleeve (24), and the plurality of clamping plates (26) are respectively installed on the telescopic ends of the plurality of third hydraulic cylinders (25); The two anti-wear parts both include: a mounting seat (29), a plurality of hemispherical seats (30), and a plurality of balls (31); the mounting seat (29) is installed on the lower wall surface of the bottom plate (1), the plurality of hemispherical seats (30) are arrayedly embedded on the lower wall surface of the mounting seat (29), and the plurality of balls (31) are respectively movably installed on the plurality of hemispherical seats (30).

2. A large-span basket arch springing positioning system according to claim 1, wherein, One end of the distance measuring sensor (9) is aligned with the inner side wall surface of the L-shaped support rod (8).

3. A large-span basket arch springing positioning system according to claim 1, wherein, The driving gear (14) meshes with the driven gear (15).

4. A large-span basket arch springing positioning system according to claim 1, wherein, Anti-slip rubber pads (27) are provided on the plurality of clamping plates (26).

5. A large-span basket arch springing positioning system according to claim 1, wherein, Guide rods (28) are provided on the two sliding grooves (18), and the guide rods (28) are movably inserted on a pair of sliding blocks (19).

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