A device for controlling the vertical rotation and closing accuracy of steel pipe arch ribs

Abstract

The utility model discloses a device for controlling the vertical rotation and closing accuracy of steel pipe arch ribs, comprising: a slideway; a reaction frame, which is fixedly connected to the left and right sides of the top surface of the slideway; a horizontal sliding drive mechanism, which is provided with two groups, and the fixed ends are respectively connected to the inner sides of the reaction frames; a slider mechanism, whose two ends are respectively connected to the telescopic ends of the two groups of the horizontal sliding drive mechanisms; a vertical jacking drive mechanism, which is provided with two groups, symmetrically fixed inside the slider mechanism or on both sides of the top surface; a support mechanism, which is arranged above the telescopic ends of the two groups of the vertical jacking drive mechanisms. The utility model can adjust the lateral and vertical displacements of the steel pipe arch ribs, and improve the closing accuracy of the steel pipe arch ribs.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a device for controlling the vertical rotation and closing accuracy of steel pipe arch ribs. Background Art

[0002] With the continuous development of society, people's requirements for bridges are not only strong and durable, but also beautiful and unique in appearance. Among them, arch bridges are a form of bridge that is both ancient and young. For example, the ancient Zhaozhou Bridge adopts a circular arch form with exquisite design and beautiful shape. In modern times, in order to speed up the construction progress and better meet the requirements of environmental protection construction, more and more bridge arch ribs are designed with steel pipe structures. Steel pipe arch ribs have high rigidity and richer structural forms. They can be processed in the processing plant in advance and directly hoisted and installed at the construction site, which can reduce pollution to the environment and shorten the construction period, with significant advantages.

[0003] In order to ensure the construction quality and the beauty of the bridge, the linear control of the steel arch rib has become the focus of attention during its construction. Among them, the traditional arch rib linear adjustment is generally to make a small amount of vertical adjustment to the linear shape of the upstream and downstream arch ribs and the relative position between the arch ribs on both sides through a winch or steel strand traction. The linear control difficulty has a large error and it is difficult to control the horizontal displacement. Therefore, how to improve the accuracy of the closing of the steel tube arch rib has become an urgent problem to be solved. Utility Model Content

[0004] The utility model discloses a device for controlling the vertical rotation and closing accuracy of a steel tube arch rib, which can adjust the lateral and vertical displacements of the steel tube arch rib and improve the closing accuracy of the steel tube arch rib.

[0005] To achieve the above purpose, the technical solution of the utility model is:

[0006] A device for controlling the vertical rotation and closing accuracy of a steel tube arch rib, comprising:

[0007] slide;

[0008] A reaction frame, which is fixedly connected to the left and right sides of the top surface of the slideway;

[0009] A horizontal sliding drive mechanism is provided with two groups, and the fixed ends are respectively connected to the inner side of the reaction frame;

[0010] A slider mechanism, both ends of which are respectively connected to the telescopic ends of the two sets of horizontal sliding drive mechanisms;

[0011] A vertical lifting drive mechanism, which is provided with two groups and symmetrically fixed inside the slider mechanism or on both sides of the top surface;

[0012] The supporting mechanism is arranged on the telescopic ends of the two groups of vertical lifting drive mechanisms.

[0013] Furthermore, the slide includes a multi-piece I-beam support portion and a slide plane support portion, wherein the multi-piece I-beam support portion includes a plurality of I-beams connected together, and the slide plane support portion is fixedly connected to the top surface thereof. Furthermore, the slide plane support portion is fixedly connected to a slide enclosure structure on the periphery thereof.

[0014] Furthermore, the horizontal sliding drive mechanism is a horizontal jack.

[0015] Furthermore, the slider mechanism includes a slider body and a slide box. The slider body is provided with two pieces, which are respectively fixed on both sides of the bottom surface of the slide box. The left and right sides of the slide box are respectively connected to the telescopic ends of the two groups of the horizontal sliding drive mechanisms.

[0016] Furthermore, the vertical lifting drive mechanism is a vertical jack.

[0017] Furthermore, the support mechanism includes a flat support portion and a limiting portion, and two groups of limiting portions are symmetrically fixed on the left and right sides of the top surface of the flat support portion.

[0018] Furthermore, the center line of the distance between the two groups of limiting parts coincides with the center line of the plate supporting part.

[0019] Furthermore, a supporting portion enclosure structure is fixedly connected to the peripheral side of the flat plate supporting portion.

[0020] The above-mentioned device for controlling the vertical rotation and closing accuracy of the steel tube arch rib, during construction, fixes the slideway on the top of the arch rib support, adjusts the horizontal displacement of the arch rib along the width direction of the bridge through the horizontal sliding drive mechanism, thereby adjusting the horizontal deviation of the arch rib, and adjusts the height of the arch rib through the vertical lifting drive mechanism, thereby adjusting the vertical position of the arch rib.

[0021] The utility model has the following advantages:

[0022] (1) The utility model has a simple structure and can realize the horizontal displacement and vertical displacement adjustment of the steel tube arch rib along the width direction of the bridge, thereby improving the vertical rotation and closing accuracy of the steel tube arch rib.

[0023] (2) The utility model further uses a jack to adjust the vertical and horizontal displacements of the steel tube arch ribs, and the displacement adjustment accuracy is higher, which can better ensure the linear shape of the steel tube arch ribs, and ensure the quality of the bridge and the aesthetics of the steel tube arch ribs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0025] In the figure, there are a support mechanism 1, a flat plate support portion 101, a limiting portion 102, a vertical lifting drive mechanism 2, a slider mechanism 3, a slider body 301, a slide box 302, a horizontal sliding drive mechanism 4, a reaction frame 5, a slideway 6, a multi-piece I-beam support portion 601, a slideway plane support portion 602, a shoulder beam 7, and a steel pipe arch rib 8. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0028] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] A device for controlling the vertical rotation and closing accuracy of a steel pipe arch rib comprises a slideway 6, a reaction frame 5, a horizontal sliding drive mechanism 4, a slider mechanism 3, a vertical lifting drive mechanism 2 and a support mechanism 1, wherein: the slideway 6 provides a sliding plane; the reaction frame 5 is fixedly connected to the left and right sides of the top surface of the slideway 6; the horizontal sliding drive mechanism 4 is provided with two groups, the fixed ends of which are respectively connected to the inner sides of the reaction frames 5, and each group of horizontal sliding drive mechanisms 4 is connected to the reaction frames 5 on one side, and the reaction frames 5 provide a fixed foundation for the horizontal sliding drive mechanism 4; the slider mechanism 3 has two ends respectively connected to the telescopic ends of the two groups of horizontal sliding drive mechanisms 4, that is, the two groups of horizontal sliding The shifting driving mechanism 4 is respectively from both ends of the slider mechanism 3; the vertical jacking driving mechanism 2 is provided with two groups, which are symmetrically fixed on both sides of the inside or top surface of the slider mechanism 3, and can move with the horizontal movement of the slider mechanism 3, so as to realize the horizontal position adjustment of the steel pipe arch rib 8. The two groups of vertical jacking driving mechanisms 2 can jack up the steel pipe arch rib 8 from both sides below one of the cross sections of the steel pipe arch rib 8, so that the support is more stable and can better ensure the balance of vertical jacking; the supporting mechanism 1 is arranged above the telescopic ends of the two groups of vertical jacking driving mechanisms 2, and is used to provide a plane to support the steel pipe arch rib 8, so that the force of the vertical jacking driving mechanism 2 can be more evenly transmitted to the steel pipe arch rib 8. There are at least two shoulder beams 7 arranged along the length direction of the arch rib at the top of the arch rib support. During construction, there are multiple sets of devices for controlling the vertical rotation and closing accuracy of the steel tube arch rib on the steel tube arch rib 8, which are arranged at intervals at different positions along the length direction of the steel tube arch rib 8. Each set of devices for controlling the vertical rotation and closing accuracy of the steel tube arch rib, the slide 6 is welded on the shoulder beam 7 at the top of the arch rib support, the slide 6 is arranged along the width direction of the steel tube arch rib 8, and then the horizontal displacement of the steel tube arch rib 8 along the width direction of the bridge is adjusted through the cooperation of the two sets of horizontal sliding drive mechanisms 4 to extend and shorten, thereby adjusting the horizontal deviation of the arch rib, and then the height of the steel tube arch rib 8 is adjusted through the extension or shortening of the vertical lifting drive mechanism 2, thereby adjusting the vertical position of the steel tube arch rib 8.

[0030] Furthermore, the present embodiment provides a preferred slide 6, which includes a multi-piece I-beam support portion 601 and a slide plane support portion 602. The multi-piece I-beam support portion 601 includes a plurality of I-beams connected together. When in use, the web direction of the I-beam is arranged along the width direction of the steel arch rib. The I-beam has high strength, which can ensure the bearing capacity of the entire device and reduce the possibility of deformation when adjusting the displacement of the steel pipe arch rib 8. The top surface of the double-piece I-beam support portion 601 is fixedly connected to the slide plane support portion 602, which is generally made of explosive composite steel plate. When in use, silicone grease is applied on the explosive composite steel plate to reduce frictional resistance. A stiffening plate can also be welded at the connection position of the multi-piece I-beam support portion 601 and the slide plane support portion 602 to make the connection between the multi-piece I-beam support portion 601 and the slide plane support portion 602 more stable. Furthermore, in order to further ensure the safety of construction, the slide plane support part 602 is fixedly connected to the surrounding side with a slide enclosure structure, such as a guardrail or an enclosure plate, so that if the construction workers are required to perform debugging, the safety of the construction workers can be better guaranteed.

[0031] Furthermore, the horizontal sliding drive mechanism 4 is a horizontal jack, that is, a jack placed horizontally. The jack controls the horizontal displacement with higher precision, and can better improve the horizontal position accuracy of the steel pipe arch rib 8. Each group of horizontal sliding drive mechanisms 4 can be a horizontal jack, or two or more, depending on the actual situation. Similarly, the vertical jacking drive mechanism 2 is a vertical jack. Each group of vertical jacking drive mechanisms 2 can be a vertical jack, or two or more, depending on the actual situation. Both the horizontal sliding drive mechanism 4 and the vertical jacking drive mechanism 2 can be connected to the control system to remotely control the displacement of the horizontal sliding drive mechanism 4 and the vertical jacking drive mechanism 2.

[0032] Furthermore, this embodiment provides a preferred slider mechanism 3, which includes a slider body 301 and a slide box 302. The slider body 301 is provided with two pieces, which are fixed on both sides of the bottom surface of the slide box 302, and the left and right sides of the slide box 302 are respectively connected to the telescopic ends of the two sets of horizontal sliding drive mechanisms 4. The two slider bodies 301 are respectively provided on the bottom surface of the slide box 302 to reduce friction. The slider body 301 can be made of a polyvinyl chloride slide; and the slide box 302 connects the two slider bodies 301 to form a whole, and at the same time provides a plane for the slider mechanism 3 to connect with the horizontal sliding drive mechanism 4. Pin seats can be installed on the left and right beam sides of the slide box 302, and connected with the telescopic end of the horizontal sliding drive mechanism 4 through a pin shaft, so that the connection is faster. A vertical jacking drive mechanism 2 is fixed inside the slide box 302, and the vertical jacking drive mechanism 2 preferably corresponds to the top of the slider body 301. Of course, the slider mechanism 3 can also have a variety of structural forms, such as using a whole slider body with the vertical lifting drive mechanism 2 fixed on the top surface. This embodiment only provides a preferred structure.

[0033] Furthermore, the present embodiment provides a specific support mechanism 1, which includes a flat plate support portion 101 and a limiting portion 102. Two groups of limiting portions 102 are symmetrically fixed on the left and right sides of the top surface of the flat plate support portion 101. The spacing between the limiting portions 102 needs to match the cross-sectional width of the steel tube arch rib 8 at the corresponding position, so as to limit the horizontal displacement of the steel tube arch rib 8 and ensure the closing accuracy of the steel tube arch rib 8. The flat plate support portion 101 can be made of one or two or more steel plates welded together, and the limiting portion can be made of steel sections.

[0034] Furthermore, the center line of the distance between the two sets of limiting parts 102 coincides with the center line of the plate supporting part 101, which can better ensure the balance of the entire supporting mechanism 1.

[0035] Furthermore, a support part enclosure structure, such as a guardrail or an enclosure plate, is fixedly connected to the periphery of the flat support part 101, so that the safety of the construction workers can be better guaranteed if they are required to perform debugging.

[0036] In addition, the reaction frame 5 can be made of steel.

[0037] For the above-mentioned further solution, during construction, the multi-piece I-beam support part 601 is welded to the shoulder beam 7 on the top of the arch rib support, and then the horizontal displacement of the arch rib along the width direction of the bridge is adjusted by extending and shortening the two sets of horizontal jacks, thereby adjusting the horizontal deviation of the steel tube arch rib 8, and then the height of the steel tube arch rib 8 is adjusted by extending or shortening the vertical jacks, thereby adjusting the vertical position of the steel tube arch rib 8.

Claims

1. A device for controlling the vertical rotation and closing accuracy of steel tube arch ribs, characterized in that include: slide; A reaction frame, which is fixedly connected to the left and right sides of the top surface of the slideway; A horizontal sliding drive mechanism is provided with two groups, and the fixed ends are respectively connected to the inner side of the reaction frame; A slider mechanism, both ends of which are respectively connected to the telescopic ends of the two sets of horizontal sliding drive mechanisms; A vertical lifting drive mechanism, which is provided with two groups and symmetrically fixed inside the slider mechanism or on both sides of the top surface; The supporting mechanism is arranged on the telescopic ends of the two groups of vertical lifting drive mechanisms.

2. The device for controlling the vertical rotation and closing accuracy of steel tube arch ribs according to claim 1, characterized in that: The slideway includes a multi-piece I-beam support portion and a slideway plane support portion. The multi-piece I-beam support portion includes a plurality of I-beams connected together, and the top surface of the multi-piece I-beam support portion is fixedly connected to the slideway plane support portion.

3. The device for controlling the vertical rotation and closing accuracy of steel tube arch ribs according to claim 1, characterized in that: The horizontal sliding driving mechanism is a horizontal jack.

4. The device for controlling the vertical rotation and closing accuracy of steel tube arch ribs according to claim 1, characterized in that: The slider mechanism includes a slider body and a slide box. The slider body is provided with two pieces, which are respectively fixed on both sides of the bottom surface of the slide box. The left and right sides of the slide box are respectively connected to the telescopic ends of the two groups of the horizontal sliding drive mechanisms.

5. The device for controlling the vertical rotation and closing accuracy of steel tube arch ribs according to claim 1 is characterized in that: The vertical lifting driving mechanism is a vertical jack.

6. The device for controlling the vertical rotation and closing accuracy of steel tube arch ribs according to claim 1, characterized in that: The support mechanism comprises a flat support portion and a limiting portion, and two groups of limiting portions are symmetrically fixed on the left and right sides of the top surface of the flat support portion.

7. The device for controlling the vertical rotation and closing accuracy of steel tube arch ribs according to claim 6, characterized in that: The center line of the distance between the two groups of limiting parts coincides with the center line of the plate supporting part.

8. The device for controlling the vertical rotation and closing accuracy of steel tube arch ribs according to claim 6, characterized in that: A supporting portion enclosure structure is fixedly connected to the peripheral side of the flat plate supporting portion.

9. The device for controlling the vertical rotation and closing accuracy of steel tube arch ribs according to claim 2, characterized in that: A slideway enclosure structure is fixedly connected to the periphery of the slideway plane support portion.

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