Automatic deviation rectifying hydraulic jack for walking of hanging basket

Abstract

The utility model discloses a hanging basket walking automatic deviation rectifying hydraulic jack, which relates to the technical field of bridge construction, and adopts the technical scheme that the hanging basket walking automatic deviation rectifying hydraulic jack comprises two rails which are arranged on a bridge cast-in-place section in parallel and rhombic frames which are movably arranged on the rails, and the two rhombic frames are fixedly connected through a middle cross beam; a tailstock is arranged on each rail, a jack is arranged on each tailstock, a fixed part of each jack is rotationally connected with the corresponding tailstock, and a movable part of each jack is rotationally connected with the lower end part of the corresponding rhombic frame; an adapter is fixedly arranged on the tailstock, a magnetic railing ruler is arranged on the adapter in a sliding manner, one end of the magnetic railing ruler is fixedly connected with the lower end part of the rhombic frame, and the magnetic railing ruler is parallel to the upper surface of the track; a magnetic grid sensor is movably arranged on the track, and a magnetic reading head of the magnetic grid sensor faces the magnetic grid ruler. The utility model has the beneficial effects that the jack is dynamically adjusted by analyzing and comparing data acquired by the magnetic grid sensor in real time; manual measurement of the walking distance of the hanging basket is reduced, and labor is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a hydraulic jack with automatic deviation correction for a hanging basket. Background Art

[0002] When constructing a cantilever beam bridge with a larger span, a hanging basket is often used for construction. The main truss of the conventional hanging basket is moved forward by hydraulic oil jacking. Jacks are installed at the bottom of the trusses on both sides. The jacks are supported between the front support of the hanging basket and the rear top seat on the slide rail. The hanging basket is moved forward by extending the jack. When the hanging basket moves forward, the two main streams should be moved synchronously and slowly, and a dedicated person should be in unified command to ensure that the two jacking cylinders are as synchronized as possible to prevent pulse travel.

[0003] Conventional hanging basket travel systems usually have scale lines carved on the track, and the travel distance of the hanging basket is frequently measured manually to control the lifting pressure of the jack to ensure the synchronous travel of the trusses on both sides. The operation is troublesome, and the hanging basket is prone to distortion, dislocation, and slow travel during movement. In addition, the dislocation caused by the asynchronous travel of the trusses of the hanging basket will not only directly affect the construction accuracy of the longitudinal axis of the bridge, but also cause safety hazards to the structural stability of the hanging basket. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a hydraulic jack for automatically correcting the deviation of a hanging basket during walking.

[0005] The technical solution is as follows: it comprises two tracks arranged in parallel on the cast-in-place section of the bridge, a diamond frame movably arranged on each of the tracks, the two diamond frames are fixedly connected by a middle crossbeam, a tailstock is arranged on each of the tracks, a jack is arranged on the tailstock, the fixed part of the jack is rotatably connected to the tailstock, and the movable part of the jack is rotatably connected to the lower end of the diamond frame;

[0006] An adapter is fixedly arranged on the tailstock, a magnetic scale is slidably arranged on the adapter, one end of the magnetic scale is fixedly connected to the lower end of the diamond frame, and the magnetic scale is parallel to the upper surface of the track;

[0007] A magnetic grating sensor is movably arranged on the track, and a magnetic reading head of the magnetic grating sensor faces the magnetic grating scale.

[0008] A plurality of positioning holes are arranged in an array in the middle of the track, a mounting hole is provided on the tailstock, the mounting hole corresponds to one of the positioning holes, and the tailstock is fixedly connected by a pin penetrating the mounting hole and the positioning hole.

[0009] The beneficial effects of the technical solution provided by the embodiment of the utility model are: by real-time analysis and comparison of data collected by the magnetic grid sensor, the jack is dynamically adjusted to improve the construction accuracy of the hanging basket during walking, and to prevent the hanging basket from twisting, dislocation and the like during walking; manual measurement of the hanging basket walking distance is reduced, saving labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0011] Figure 2 for Figure 1 An enlarged schematic diagram of part A.

[0012] Among them, the accompanying drawings are marked as follows: 1. track; 2. diamond frame; 3. tailstock; 4. jack; 5. adapter; 6. magnetic scale; 7. magnetic scale sensor; 8. positioning hole. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0014] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0015] In the description of the invention of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention of the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention of the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention of the present utility model, unless otherwise specified, "multiple" means two or more.

[0016] In the description of the invention of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention of the utility model can be understood according to specific circumstances.

[0017] Example 1

[0018] See also Figure 1 to Figure 2 The utility model provides a hydraulic jack for automatically correcting the deviation of a hanging basket, comprising two rails 1 arranged in parallel on a cast-in-place section of a bridge, the rails 1 being I-beams, and rhombus frames 2 movably arranged on each rail 1, the two rhombus frames 2 being fixedly connected by a middle crossbeam, a tailstock 3 being arranged on each rail 1, a jack 4 being arranged on the tailstock 3, a fixed part of the jack 4 being rotatably connected to the tailstock 3, and a movable part of the jack 4 being rotatably connected to the lower end of the rhombus frame 2; the tailstock 3 is in a rectangular block shape, a "T"-shaped slide groove is provided on the lower surface of the tailstock 3, and the tailstock 3 is slidably connected to the rail 1 through the slide groove;

[0019] An adapter seat 5 is fixedly arranged on the tailstock 3, a magnetic scale 6 is slidably arranged on the adapter seat 5, one end of the magnetic scale 6 is fixedly connected to the lower end of the diamond frame 2, and the magnetic scale 6 is parallel to the upper surface of the track 1;

[0020] A magnetic grating sensor 7 is movably arranged on the track 1 , and a read head of the magnetic grating sensor 7 faces the magnetic grating scale 6 .

[0021] A plurality of positioning holes 8 are arranged in an array in the middle of the track 1 , and a mounting hole is provided on the tailstock 3 , the mounting hole corresponds to one of the positioning holes 8 , and the tailstock 3 is fixedly connected by a pin penetrating the mounting hole and the positioning hole 8 .

[0022] When the utility model is used, during the walking process of the hanging basket, the stepping stroke measured by the magnetic grid sensor is collected, that is, the driving distance of the jack 4 to the diamond frame 2 on one side. When the difference between the maximum displacement value and the minimum displacement value of the moving distance between the diamond frames 2 on both sides exceeds the preset synchronization difference, the lifting stroke of the jack 4 on one side is adjusted so that the diamond frames 2 on both sides can be kept synchronized, or the difference between the maximum displacement value and the minimum displacement value of the moving distance between the diamond frames 2 on both sides is within the preset synchronization difference, so as to realize automatic deviation correction of the walking of the hanging basket, thereby ensuring the construction accuracy of the walking of the hanging basket, and preventing the hanging basket from being twisted, dislocated, etc. during the walking process.

[0023] The synchronization difference can be adjusted according to actual engineering needs. For example, the synchronization difference can be set to 2 mm, that is, the difference between the maximum displacement value and the minimum displacement value of the moving distance between each rhombus frame 2 needs to be kept within 2 mm;

[0024] For another example, the synchronization difference may be set to 5 mm, that is, the difference between the maximum displacement value and the minimum displacement value of the moving distance between the diamond frames 2 needs to be kept within 5 mm.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic jack for automatically correcting the deviation of a hanging basket, comprising two rails (1) arranged in parallel on a cast-in-place section of a bridge, a rhombus frame (2) movably arranged on each of the rails (1), the two rhombus frames (2) being fixedly connected via a middle crossbeam, characterized in that: A tailstock (3) is disposed on each of the rails (1), a jack (4) is disposed on the tailstock (3), a fixed portion of the jack (4) is rotatably connected to the tailstock (3), and a movable portion of the jack (4) is rotatably connected to the lower end of the rhombus frame (2); An adapter seat (5) is fixedly arranged on the tailstock (3), a magnetic scale (6) is slidably arranged on the adapter seat (5), one end of the magnetic scale (6) is fixedly connected to the lower end of the rhombus frame (2), and the magnetic scale (6) is parallel to the upper surface of the track (1); A magnetic grating sensor (7) is movably arranged on the track (1), and a magnetic reading head of the magnetic grating sensor (7) faces the magnetic grating scale (6).

2. The automatic deviation-correcting hydraulic jack for hanging basket travel according to claim 1 is characterized in that: A plurality of positioning holes (8) are arranged in an array in the middle of the track (1), a mounting hole is provided on the tailstock (3), the mounting hole corresponds to one of the positioning holes (8), and the tailstock (3) is fixedly connected via a pin penetrating the mounting hole and the positioning hole (8).

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