Automatic deviation rectifying device for bridge incremental launching construction

Abstract

The utility model discloses an automatic deviation rectifying device for bridge incremental launching construction, and relates to the technical field of bridge incremental launching construction. Comprising a steel shell, the movable pressing rods extend into the steel shell and are connected with the corresponding sliding rails, and the beam body is arranged between the movable pressing rods; the cavity carrier is arranged between the movable pressing rod and the inner wall of the steel shell, and when the movable pressing rod moves, the gas pressure in the cavity carrier changes; the pressure sensor is mounted at the joint of the cavity carrier and the steel shell and is used for sensing the pressure in the cavity carrier; the microcontroller is connected with the pressure sensor and is used for receiving the pressure signal; the first electromagnet is connected with the microcontroller and located on the inner wall of the steel shell; the second electromagnet and the first electromagnet are symmetrically arranged, and the second electromagnet is located on the movable pressing rod. The device is simple in structure, construction operation is greatly facilitated, the complexity of installation and maintenance is reduced, and the whole construction process is smoother and more efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge pushing construction technical field, concretely relates to a kind of automatic deviation rectification device for bridge pushing construction. BACKGROUND

[0002] In the pushing construction process, once the bridge girder deviates from the predetermined pushing route, measures must be taken immediately to prevent further deviation. At this time, the setting of the lateral limiting device is particularly important, as it effectively limits the deviation range of the girder. However, relying solely on the lateral limiting device is not enough; the pushing operation must also be stopped, and the lateral horizontal jack must be used to accurately rectify the girder in a stationary state.

[0003] Currently, some related patent technologies have been applied in this field. For example, the lateral limiting and rectification device disclosed in the existing patent CN102493348B can rectify the steel truss girder, but the entire process still requires manual jacking, and full automation cannot be achieved. Moreover, the maximum rectification amount during the pushing process is fixed, which undoubtedly limits the flexibility of construction. On the other hand, the intelligent lateral rectification system proposed in the existing patent CN109024307A can collect girder deviation data in real time and perform rectification operations after accurate calculation by the host computer, demonstrating high intelligence, real-time performance, and precision. However, the complex implementation process and high equipment requirements result in relatively high investment costs, limiting the promotion of this method in practical applications.

[0004] In view of the above problems, the current rectification method is not only difficult to implement, but also involves significant construction risks, and the construction efficiency cannot meet the requirements of rapid and continuous pushing construction. UTILITY MODEL CONTENTS

[0005] The purpose of the utility model is to use electromagnets as an automatic deviation rectification device for bridge pushing construction, which is convenient for construction, highly flexible, can reduce the difficulty and risk of lateral rectification during the pushing construction process, and improves construction efficiency.

[0006] To achieve the above purpose, the present application proposes an automatic deviation rectification device for bridge pushing construction, comprising:

[0007] A steel shell with symmetrical side walls has sliding tracks;

[0008] Movable pressure rods extend into the steel shell and are connected to the corresponding sliding tracks, with the girder placed between the movable pressure rods;

[0009] A cavity carrier is placed between the movable pressure rods and the inner wall of the steel shell. When the movable pressure rods move, the gas pressure in the cavity carrier changes.

[0010] a pressure sensor installed at the joint of the cavity carrier and the steel shell for sensing the pressure in the cavity carrier;

[0011] a microcontroller connected to the pressure sensor for receiving the pressure signal;

[0012] a first electromagnet connected to the microcontroller and located on the inner wall of the steel shell;

[0013] a second electromagnet symmetrically arranged with the first electromagnet and located on the movable pressure rod.

[0014] In one embodiment, when the beam body is not offset or the offset is less than a threshold value, the beam body does not contact the movable pressure rod.

[0015] In one embodiment, when the offset of the beam body is greater than the threshold value, the beam body contacts one of the movable pressure rods.

[0016] In one embodiment, when the beam body contacts one of the movable pressure rods, the pressure sensor on the side of the movable pressure rod collects the pressure signal and transmits it to the microcontroller.

[0017] In one embodiment, the microcontroller converts the pressure signal into a current signal and transmits it to the first electromagnet, which generates an attractive force on the second electromagnet, thereby driving the movable pressure rod to correct the deviation of the beam body.

[0018] In one embodiment, the cavity carrier is made of a polyester material with resilience and air-tightness.

[0019] In one embodiment, the cavity carrier is tightly bonded to the movable pressure rod and the inner wall of the steel shell.

[0020] In one embodiment, a signal amplifier is provided between the microcontroller and the first electromagnet.

[0021] In one embodiment, in the initial state, the movable pressure rods are located inside the corresponding sliding tracks.

[0022] In one embodiment, the first electromagnet and the second electromagnet are identical in shape and size.

[0023] The above technical scheme of the utility model has the advantages compared with the prior art:

[0024] 1. The automatic deviation correction device of the present application has a simple structure, greatly facilitates construction operation, reduces the complexity of installation and maintenance, and makes the entire construction process more smooth and efficient.

[0025] 2、The automatic deviation correcting device of the application breaks the constraint of the maximum deviation in the traditional method, and no longer is limited by the fixed deviation correcting range to realize automatic deviation correction. It not only has strong flexibility, but also significantly reduces the difficulty and risk in the construction process, effectively avoids errors caused by improper manual operation, thereby greatly improves the construction efficiency, and ensures the accuracy and safety of the bridge pushing construction.

[0026] 3、The automatic deviation correcting device of the application greatly simplifies the construction process, reduces the complicated manual operation and equipment investment, not only saves the labor cost, but also reduces the occupation and energy consumption of the equipment, and provides a strong guarantee for the smooth progress of the bridge construction project. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the automatic deviation correcting device for bridge pushing construction.

[0028] Figure 2 It is a top view of the automatic deviation correcting device for bridge pushing construction.

[0029] Figure 3 It is a working state schematic diagram of the automatic deviation correcting device for bridge pushing construction.

[0030] Wherein: 1, sliding rail, 2, movable pressure rod, 3, cavity carrier, 4, pressure sensor, 5, first electromagnet, 6, beam body, 7, steel shell, 8, microcontroller, 9, signal amplifier. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects of the application more clear and explicit, the application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and not to limit the application.

[0032] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "multiple" is two or more, unless otherwise explicitly and specifically limited. The meaning of "several" is one or more, unless otherwise explicitly and specifically limited.

[0034] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] As shown in Figure 1 The present embodiment provides an automatic deviation correction device for bridge pushing construction, which is placed on the top of the pier and comprises:

[0037] Steel shell, which is a hollow structure, has an opening on one side, and symmetrical sliding rails are arranged on the opposite side walls of the opening;

[0038] Movable pressure rod, which can move in the transverse direction of the sliding rail 1, is located inside the corresponding sliding rail in the initial state; the beam body is placed between the movable pressure rods, and when the beam body does not deviate or the deviation is less than a threshold value, the beam body does not contact the movable pressure rod; when the deviation of the beam body is greater than the threshold value, the beam body contacts one of the movable pressure rods;

[0039] Cavity carrier, which is placed between the movable pressure rod and the inner wall of the steel shell, changes the gas pressure in the cavity carrier when the movable pressure rod moves; the cavity carrier is made of polyester material with good resilience and no gas leakage, so that it can return to the initial state after being compressed;

[0040] Pressure sensor, which is installed at the connection between the cavity carrier and the steel shell, is used to sense the pressure in the cavity carrier; when the beam body contacts one of the movable pressure rods, the pressure sensor on the side of the movable pressure rod collects the pressure signal and transmits it to the microcontroller;

[0041] Microcontroller, which is connected to the pressure sensor, is used to receive the pressure signal; the microcontroller converts the pressure signal into a current signal and transmits it to the first electromagnet, which generates an attractive force on the second electromagnet, thereby driving the movable pressure rod to correct the deviation of the beam body;

[0042] The first electromagnet is connected to the microcontroller through a signal amplifier and is located on the inner wall of the steel shell.

[0043] The second electromagnet is symmetrically arranged with the first electromagnet and is located on the movable pressure rod.

[0044] The bridge shown in the embodiment has a beam body with a width of 5 m and a height of 1.5 m and is made of Q234q steel; the corresponding steel shell 7 has an outer dimension of 2 m x 2 m x 2 m and a thickness of 10 mm and is made of Q235 steel; the sliding track 1 is 0.25 m long and is made of Q235 steel; the movable pressure rod 2 is 6 m long and is made of Q235 steel; and the cavity carrier 3 has a size of 0.2 m x 0.2 m x 0.2 m.

[0045] As shown in Figure 2 , when the beam body 6 does not deviate or the deviation is less than a threshold value Δ (which can be set as Δ = 4 cm), the movable pressure rod 2 is located at an initial position, the pressure sensor 4 senses that the pressure does not change, and the electromagnet 5 is not powered on and does not have a magnetic force effect. When the beam body 6 deviates to just contact one of the movable pressure rods 2, that is, the deviation is Δ, the movable pressure rod 2 starts to slide, as shown in Figure 3 , when the beam body 6 further deviates and pushes the movable pressure rod 2 to slide away from the initial position, the gas in the cavity carrier 3 is squeezed, the pressure sensor transmits a pressure signal to the microcontroller, the microcontroller can output high and low levels through a GPIO pin to control the adsorption and release of the first electromagnet, and can adjust the current size through a PWM signal. The gas in the cavity carrier 3 on the other side is not squeezed, and the pressure sensor does not change the pressure it receives; in the embodiment, the pressure F received by the microcontroller is 303.06 kN, the surface area S1 of the pressure sensor 3 is 0.1 m, the contact area S2 of the pressure sensor 4 and the movable pressure rod is 0.3 m, and the pushing force F of the movable pressure rod is According to Maxwell's electromagnetic theory, the current n is the number of turns of the first electromagnet, which can be 50,000, μ0 is the magnetic permeability, which can be 4π x 10 -7 N / A 2 , S0 is the air gap area, which can be 2 x 10 -3 m 2 , δ0 is the air gap thickness, which can be 1.5 x 10 -3 m, when the electromagnetic force is equal to 1515.3 kN, that is, the current I = 2.08 A, the electromagnetic force generated is equal to the pushing force, the first electromagnet 5 pushes the movable pressure rod 2 to move in the opposite direction, the movable pressure rod 2 provides a lateral bridge force, and the beam body 6 gradually moves to the center line of the bridge in the lateral bridge sliding process, thereby achieving the purpose of deviation correction; when the pressure signal sensed by the pressure sensor 4 is the same as the initial state, the first electromagnet 5 is powered off, and the automatic deviation correction process is completed.

[0046] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An automatic deviation rectifying device for bridge incremental launching construction, characterized in that, The utility model relates to a kind of beam body deviation detection device, including: Steel shell, side wall is equipped with sliding rail symmetrically; Movable pressure rod, extend into steel shell and connect with corresponding sliding rail, beam body is placed between movable pressure rod; Cavity carrier, placed between movable pressure rod and steel shell inner wall, when movable pressure rod moves, the pressure of gas in cavity carrier changes; Pressure sensor, installed at the junction of cavity carrier and steel shell, for sensing the pressure in cavity carrier; Microcontroller, connected with pressure sensor, for receiving pressure signal; First electromagnet, connected with microcontroller, located on steel shell inner wall; Second electromagnet, symmetrically arranged with first electromagnet, located on movable pressure rod.

2. The automatic deviation correcting device for incremental launching construction of a bridge according to claim 1, characterized in that, When the beam body does not deviate or the deviation is less than the threshold value, the beam body does not contact with movable pressure rod.

3. The automatic deviation correcting device for incremental launching construction of a bridge according to claim 1, characterized in that, When the deviation of beam body is greater than the threshold value, the beam body contacts with one of movable pressure rod.

4. The automatic deviation correcting device for incremental launching construction of a bridge according to claim 3, characterized in that, When the beam body contacts with one of movable pressure rod, the pressure sensor on the side of the movable pressure rod collects pressure signal and transmits to microcontroller.

5. The automatic deviation rectifying device for bridge incremental launching construction according to claim 4, characterized in that, The microcontroller converts pressure signal into current signal and transmits to first electromagnet, and the first electromagnet generates suction force to the second electromagnet, thereby driving movable pressure rod to correct the deviation of beam body.

6. The automatic deviation correcting device for incremental launching construction of a bridge according to claim 1, characterized in that, The cavity carrier is made of polyester material with resilience and no air leakage.

7. The automatic deviation correcting device for incremental launching construction of a bridge according to claim 1, characterized in that, The cavity carrier is tightly bonded with movable pressure rod and steel shell inner wall.

8. The automatic deviation correcting device for incremental launching construction of a bridge according to claim 1, characterized in that, A signal amplifier is provided between the microcontroller and the first electromagnet.

9. The automatic deviation correcting device for incremental launching construction of a bridge according to claim 1, characterized in that, In initial state, the movable pressure rod is located inside corresponding sliding rail.

10. The automatic deviation rectifying device for bridge incremental launching construction according to claim 1, characterized in that, The first electromagnet and the second electromagnet are completely same in shape and size.

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