Construction device for prefabricated box girder of high-speed rail

Abstract

The invention provides a construction device for a prefabricated box girder of a high-speed rail. The construction device comprises a movable base; the mounting seat is arranged on the movable base in a sliding manner; the lifting assembly is arranged on the mounting seat and has a folded state and an unfolded state; the working cabin is suspended above the mounting seat through the lifting assembly; wherein a plurality of adjusting assemblies are arranged between the working cabin and the lifting assembly, the adjusting assemblies have a synchronous driving state and an asynchronous driving state, in the synchronous driving state, the adjusting assemblies are in linkage with the working cabin to be close to or away from the mounting base, and in the asynchronous driving state, the adjusting assemblies are in linkage with the working cabin to be close to or away from the mounting base. And the plurality of adjusting assemblies are linked with the working cabin and are suspended in different directions above the mounting seat. The technical problem that in the prior art, adaptability and construction efficiency of high-speed rail prefabricated box girder construction are low is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction equipment, and in particular to a construction device for a high-speed railway prefabricated box girder. Background Art

[0002] During the construction of high-speed rail prefabricated box girders, frequent access to the inner box, beam surface, and static load test beam surface is required to perform tasks such as inspecting the inner box, constructing the beam surface, and preparing for static load tests. Traditional methods for accessing beams typically utilize simple, single-function, non-driven ladders, which present numerous inconveniences and safety hazards. Non-driven ladders have a fixed height or limited adjustment, making them difficult to adapt to the height requirements of high-speed rail box girders during different construction phases, which can easily lead to operational obstructions and climbing hazards. The inability to adjust the angle makes it difficult to connect to the inner box entrance of the box girder, increasing transition risks. Manual adjustment and positioning before use are cumbersome, making transportation after use inconvenient and inefficient. Lack of safety assistance, increased risk of collision during handling, and a high risk of imbalance during climbing make them unable to meet the diverse and complex working conditions required for high-speed rail prefabricated box girder construction. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides a construction device for a high-speed railway prefabricated box girder, which solves the technical problems of low adaptability and construction efficiency of the high-speed railway prefabricated box girder construction in the prior art.

[0004] According to an embodiment of the present invention, the present invention adopts the following technical solutions:

[0005] A construction device for a high-speed railway prefabricated box girder, comprising:

[0006] Mobile base;

[0007] A mounting seat, slidably arranged on the mobile base;

[0008] A lifting assembly is provided on the mounting seat and has a folded state and an extended state;

[0009] A working cabin is suspended above the mounting seat through the lifting assembly;

[0010] Among them, multiple adjustment components are provided between the working cabin and the lifting component, and the multiple adjustment components have a synchronous driving state and an asynchronous driving state. In the synchronous driving state, the multiple adjustment components link the working cabin to approach or move away from the mounting seat. In the asynchronous driving state, the multiple adjustment components link the working cabin to be suspended in different directions above the mounting seat.

[0011] Preferably, a plurality of telescopic rods are hinged between the mounting seat and the movable base, and one end of the telescopic rod is connected to the forward and reverse motor.

[0012] Preferably, the lifting component is a lifting frame, and a lifting motor is provided at the bottom end of the lifting frame.

[0013] Preferably, the movable base is provided with a slide groove arranged along its length direction, and two slide bars are spaced apart at the bottom of the lifting frame, and the slide bars are slidably arranged in the slide groove.

[0014] Preferably, the lifting frame is provided with a through hole, and the sliding rod passes through the through hole and is connected to the sliding groove.

[0015] Preferably, the adjustment component includes:

[0016] Mounting plate;

[0017] A plurality of guide rods are arranged at an angle to the mounting plate;

[0018] A plurality of sliding platforms are arranged correspondingly to the movable guide rod;

[0019] A plurality of connecting rods have one end hinged to the corresponding sliding platform and the other end hinged to the working cabin.

[0020] Preferably, a driving motor is provided at the top end of the guide rod, an output end of the driving motor is connected to a threaded rod, and the threaded rod passes through the sliding seat.

[0021] Preferably, the bottom of the working cabin and the sliding platform are both provided with an adjustment seat, and the adjustment seat is rotatably provided with a first rotating shaft and a second rotating shaft, and the connecting rod is rotated on the adjustment seat through the second rotating shaft, and the axis of the first rotating shaft is perpendicular to the axis of the second rotating shaft.

[0022] Preferably, a compensation seat is provided between the working cabin and the adjustment seat, and the compensation seat extends in a direction away from the adjustment seat.

[0023] Preferably, the periphery of the working cabin is provided with an openable and closable protective door.

[0024] Compared with the existing technology, the present invention has the following beneficial effects: through the cooperation of the movable base and the sliding mounting seat, the device can quickly adjust its position along the longitudinal or transverse direction of the high-speed railway prefabricated box girder, reducing the time of frequent shifting of traditional equipment and shortening the construction period.

[0025] The synchronous driving state of the lifting component enables the rapid lifting of the working cabin as a whole, avoiding the tedious process of manually setting up scaffolding or relying on large machinery; furthermore, the asynchronous driving state of the adjustment component allows the working cabin to be tilted, rotated or partially adjusted in height to meet the construction needs of high-speed rail prefabricated box girders at different times. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the three-dimensional structure of a construction device in one embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the three-dimensional structure of a construction device in another orientation according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic structural diagram of a heavy adjustment assembly of a construction device according to an embodiment of the present invention;

[0029] Figure 4 for Figure 3 A partial enlarged view of the .

[0030] In the above drawings: 1. Mobile base; 11. Slide groove; 2. Mounting seat; 21. Telescopic rod; 22. Forward and reverse motor; 3. Working cabin; 4. Lifting frame; 41. Lifting motor; 42. Slide rod; 43. Through hole; 5. First adjustment component; 51. Second adjustment component; 52. Third adjustment component; 53. Mounting plate; 54. Guide rod; 55. Sliding table; 56. Connecting rod; 6. Driving motor; 61. Threaded rod; 7. Adjustment seat; 8. First rotating shaft; 9. Second rotating shaft; 10. Compensation seat. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and beneficial effects of the present invention more clearly understood, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] See also Figures 1 to 4 The present invention provides a construction device for a high-speed railway prefabricated box girder, comprising:

[0033] Mobile base 1;

[0034] A mounting base 2, slidably mounted on the mobile base 1;

[0035] A lifting assembly is provided on the mounting base 2 and has a folded state and an extended state;

[0036] The working cabin 3 is suspended above the mounting base 2 through the lifting assembly;

[0037] Among them, multiple adjustment components are provided between the working cabin 3 and the lifting component, and the multiple adjustment components have a synchronous driving state and an asynchronous driving state. In the synchronous driving state, the multiple adjustment components link the working cabin 3 to move closer to or away from the mounting seat 2. In the asynchronous driving state, the multiple adjustment components link the working cabin 3 to be suspended in different directions above the mounting seat 2.

[0038] In this embodiment, the mobile base 1 utilizes a remote-controlled battery chassis, with the power and control system utilizing a high-capacity battery. This battery features a fast-charging function, allowing for quick charging and long-term continuous operation. Remote control is achieved through wireless remote control technology. The ergonomic design of the remote control features a well-arranged button layout, allowing the operator to precisely control the chassis' forward, reverse, left and right steering, and speed adjustment. Communication between the remote control and the chassis utilizes advanced encrypted frequency bands, ensuring stable and secure signal transmission and effectively preventing external interference.

[0039] The mobile base 1 uses a high-performance DC motor for its travel, which is energy-efficient and has high torque. It can easily cope with the resistance brought by the complex terrain of the construction site. The control system of the DC motor has multiple safety protection functions such as overload protection and overheating protection. When the DC motor operates abnormally, it can automatically shut down in time and send a fault signal to the remote control so that the operator can promptly investigate and handle it. The main structure of the mobile base 1 is welded with high-strength alloy steel and undergoes a special heat treatment process to ensure that it has sufficient strength and toughness. An adjustable suspension system is installed at the bottom, which can automatically adjust the suspension height according to the flatness of different ground surfaces to ensure that the chassis is always in a horizontal and stable state. The suspension system uses hydraulic shock absorbers to effectively absorb bumps and vibrations during driving, improving the comfort and stability of equipment operation. For different ground conditions, the chassis is equipped with a switchable travel device. Rubber tires can be used on flat beam surfaces or hard ground. The tire surface is designed with a special pattern to provide good grip and wear resistance. When encountering complex working conditions such as soft land, muddy roads or climbing. The mobile base 1 is equipped with a composite positioning system that combines a high-precision satellite positioning system (such as GPS, Beidou, etc.) with an inertial navigation system. This system can accurately determine the three-dimensional coordinate position, driving direction, and speed of the chassis at the construction site in real time. Positioning data is transmitted to the remote control display via a wireless communication module and can also be transmitted to the construction site's central control system, facilitating unified management and coordinated operations of multiple devices by construction dispatchers. Safety protection devices include a tilt sensor and height sensor in addition to collision sensors. The tilt sensor monitors the chassis' tilt angle in real time. When the tilt angle exceeds a preset safety threshold, it immediately triggers the braking system and issues an alarm to prevent the chassis from rolling over due to excessive tilt. Height sensors monitor the chassis' height from the ground or the edge of the box girder, ensuring it's within a safe range during elevated work, avoiding safety issues caused by climbing too high or too low. Additionally, removable guardrails should be installed around the chassis to facilitate transport and storage. The height and strength of the guardrails meet safety standards and effectively prevent accidental falls from the chassis. Mobile Base 1 provides basic support for the entire device and allows it to be moved throughout the construction site, facilitating operation from different locations.

[0040] Specifically, during construction, the construction workers enter the working cabin 3, then drive the mobile base 1 to move, and make the mounting seat 2 slide to a suitable position on the mobile base 1, adjust the position of the working cabin 3, extend the lifting assembly, and suspend it above the mounting seat 2, so that the height of the working cabin 3 can be adjusted arbitrarily to meet different construction needs; at the same time, three adjustment assemblies are provided between the working cabin 3 and the lifting assembly, and the three adjustment assemblies all have synchronous drive state and asynchronous drive state. The workers can control the three adjustment assemblies for synchronous drive. In the synchronous drive state, all the adjustment assemblies work together to enable the working cabin 3 to move closer to or away from the mounting seat 2 again, and further fine-tune the height; or the workers control the three adjustment assemblies for asynchronous drive. In the asynchronous drive state, the three adjustment assemblies can work independently of each other, so that the working cabin 3 can be precisely adjusted in different directions above the mounting seat 2. Therefore, it is suspended above the mounting seat 2, which increases the construction range of the construction device and can be adjusted according to the needs of high-speed rail prefabricated box girders in different time periods, with high adaptability and construction efficiency.

[0041] A plurality of telescopic rods 21 are hinged between the mounting base 2 and the movable base 1 , and one end of the telescopic rod 21 is connected to a forward and reverse motor 22 .

[0042] In this embodiment, four telescopic rods 21 are hinged between the mounting base 2 and the mobile base 1. The four telescopic rods 21 allow the mounting base 2 to slide relative to the mobile base 1. The output end of the forward and reverse motor 22 is connected to one end of the telescopic rod 21. The four forward and reverse motors 22 synchronously drive the telescopic action of the four telescopic rods 21, thereby realizing the control of the length of the telescopic rod 21, and thereby realizing the forward and backward movement of the mounting base 2 on the mobile base 1.

[0043] The lifting assembly is a lifting frame 4, with a lifting motor 41 installed at the bottom of the lifting frame 4. Furthermore, the mobile base 1 is provided with a slide 11 arranged along its length, and two slide bars 42 are spaced apart at the bottom of the lifting frame 4, and the slide bars 42 are slidably mounted in the slide 11. Furthermore, the mobile base 1 is provided with a slide 11 arranged along its length, and two slide bars 42 are spaced apart at the bottom of the lifting frame 4, and the slide bars 42 are slidably mounted in the slide 11.

[0044] In this embodiment, the lifting assembly is located on the lifting frame 4 of the mounting seat 2. A lifting motor 41 is provided at the bottom of the lifting frame 4 to drive the lifting frame 4 to rise or fall, thereby adjusting the height of the working cabin 3. A slide groove 11 is provided on the mobile base 1 along its length direction, allowing the lifting frame 4 to slide thereon, thereby changing the horizontal position of the working cabin 3. Two sliding rods 42 arranged at intervals are provided at the bottom of the lifting frame 4, which are embedded in the slide groove 11 to form a guide structure to ensure that the lifting frame 4 remains stable during the sliding process without deviation or shaking. On the other hand, a through hole 43 is provided at the bottom of the lifting frame 4, and the slide rod 42 passes through the through hole 43 and is connected to the slide groove 11. A cylinder (not shown) can be provided at the bottom of the lifting frame 4 to drive the lifting frame 4 to be adjusted along the width direction of the mounting seat 2.

[0045] The adjustment component includes:

[0046] Mounting plate 53;

[0047] A plurality of guide rods 54 are provided at an angle to the mounting plate 53;

[0048] A plurality of sliding platforms 55 are provided corresponding to the movable guide rods 54;

[0049] A plurality of connecting rods 56 have one end hinged to the corresponding sliding platform 55 and the other end hinged to the working cabin 3 .

[0050] In this embodiment, the adjustment component includes: a mounting plate 53, on which two guide rods 54 are arranged in a group at an angle, three sliding tables 55 are sleeved on the corresponding two guide rods 54, one end of the six connecting rods 56 is hinged on the sliding table 55, and the other end is hinged on the bottom of the working cabin 3. In order to facilitate distinction, the three adjustment components are marked as the first adjustment component 5, the second adjustment component 51 and the third adjustment component 52 in sequence. When the three adjustment components are in a synchronous driving state, the three sliding tables 55 are linked to the working cabin 3 to perform fine adjustment up and down. When the three adjustment components are in an asynchronous driving state, for example: the first adjustment component 5 and the second adjustment component 51 remain stationary When the second adjusting component 51 and the third adjusting component 52 are moved, the sliding platform 55 of the first adjusting component 5 slides downward, so that the connecting rod 56 links the working cabin 3 to move to the left front. When the second adjusting component 51 and the third adjusting component 52 remain stationary, the sliding platform 55 of the first adjusting component slides downward, so that the connecting rod 56 links the working cabin 3 to move to the right front. When the first adjusting component and the third adjusting component remain stationary, the sliding platform 55 of the second adjusting component slides downward, so that the connecting rod 56 links the working cabin 3 to move backward and front. The adjustment of the adjusting component can be used in conjunction with the steering of the mobile base 1 itself, so that the working cabin 3 can be suspended in different orientations above the mounting seat 2 to meet the operation requirements of special angles or positions.

[0051] A driving motor 6 is provided at the top end of the guide rod 54 . The output end of the driving motor 6 is connected to a threaded rod 61 . The threaded rod 61 passes through the sliding seat.

[0052] In this embodiment, a driving motor 6 is provided at the top end of the guide rod 54, and the output end of the driving motor 6 is connected to the threaded rod 61. The threaded rod 61 is coaxially arranged with the guide rod 54 and passes through the sliding seat to move the sliding seat up and down.

[0053] The bottom of the working cabin 3 and the sliding platform 55 are both provided with an adjustment seat 7, and the adjustment seat 7 is rotatably provided with a first rotating shaft 8 and a second rotating shaft 9. The connecting rod 56 rotates on the adjustment seat 7 through the second rotating shaft 9, and the axes of the first rotating shaft 8 and the second rotating shaft 9 are perpendicular.

[0054] In this embodiment, an adjustment seat 7 is installed on the bottom of the working cabin 3 and the sliding table 55 respectively. The adjustment seat 7 provides a mounting fulcrum for the connecting rod 56 and provides support for the hinge structure. Each adjustment seat 7 is provided with a rotatable first shaft 8. The first shaft 8 allows the connecting rod 56 to rotate around it to achieve multi-angle flexible connection. In addition, one end of the connecting rod 56 is connected to the adjustment seat 7 on the sliding table 55 through the second shaft 9, and the other end is connected to the adjustment seat 7 at the bottom of the working cabin 3 through the second shaft 9. Since both ends of the connecting rod 56 can rotate and the axes of the first shaft 8 and the second shaft 9 are arranged perpendicular to each other, the connecting rod 56 is able to rotate between the first adjustment component 5, the second adjustment component 51 and the third adjustment component. Under the asynchronous drive of 52, it can realize rotation forward, backward, left and right, so that the working cabin 3 can realize various posture adjustments such as pitch, yaw, lifting, etc., and realize the multi-directional hovering of the working cabin 3 above the mounting seat 2. Combined with the guide rod 54, the threaded rod 61, and the drive motor 6, a precise and controllable space adjustment system is formed. Combined with the lifting frame 4, the slide 11, the telescopic rod 21 and other structures, the overall device has the ability of high integration, intelligence, and multi-degree-of-freedom adjustment, which significantly improves the adjustment flexibility, stability and adaptability of the device, strengthens the operation ability of the device under complex working conditions, and also provides key structural support for realizing high-precision positioning, multi-posture adjustment and automatic control in the construction process of high-speed rail prefabricated box girders.

[0055] A compensation seat 10 is provided between the working cabin 3 and the adjustment seat 7 , and the compensation seat 10 extends in a direction away from the adjustment seat 7 .

[0056] In this embodiment, the compensation seat 10 is a transition structure connecting the working cabin 3 and the adjustment seat 7. Its function is to provide a spatial connection method for displacement compensation between the two. The cross-sectional area of ​​the compensation seat 10 should be smaller than the cross-sectional area of ​​the working cabin 3. The compensation seat 10 extends away from the adjustment seat 7 to form a "support bridge", which can increase the adjustment range of the working cabin 3 and avoid direct interference between the adjustment component and the working cabin 3 body when adjusting the angle.

[0057] The circumference of the working cabin 3 is provided with an openable and closable protective door.

[0058] In this embodiment, protective doors are provided on the periphery of the working cabin 3. The core purpose is to improve the safety and working convenience of construction workers, so that workers can enter and exit the working cabin 3 from multiple directions, and enhance the safety protection capability during high-altitude operations.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A construction device for high-speed railway prefabricated box beams, characterized in that: include: Mobile base; A mounting seat, slidably arranged on the mobile base; A lifting assembly is provided on the mounting seat and has a folded state and an extended state; A working cabin is suspended above the mounting seat through the lifting assembly; Among them, multiple adjustment components are provided between the working cabin and the lifting component, and the multiple adjustment components have a synchronous driving state and an asynchronous driving state. In the synchronous driving state, the multiple adjustment components link the working cabin to approach or move away from the mounting seat. In the asynchronous driving state, the multiple adjustment components link the working cabin to be suspended in different directions above the mounting seat.

2. The construction device for a high-speed railway prefabricated box girder according to claim 1, characterized in that: A plurality of telescopic rods are hinged between the mounting seat and the movable base, and one end of the telescopic rod is connected to the forward and reverse motor.

3. The construction device for a high-speed railway prefabricated box girder according to claim 2, characterized in that: The lifting component is a lifting frame, and a lifting motor is provided at the bottom end of the lifting frame.

4. The construction device for high-speed railway prefabricated box beam according to claim 3, characterized in that: The movable base is provided with a slide groove arranged along the length direction thereof, and two slide bars are spaced apart at the bottom of the lifting frame, and the slide bars are slidably arranged in the slide groove.

5. The construction device for high-speed railway prefabricated box beam according to claim 4, characterized in that: The lifting frame is provided with a through hole, and the sliding rod passes through the through hole and is connected with the sliding groove.

6. The construction device for high-speed railway prefabricated box beam according to claim 1, characterized in that: The adjustment component includes: Mounting plate; A plurality of guide rods are arranged at an angle to the mounting plate; A plurality of sliding platforms are arranged correspondingly to the movable guide rod; A plurality of connecting rods have one end hinged to the corresponding sliding platform and the other end hinged to the working cabin.

7. The construction device for high-speed railway prefabricated box beam according to claim 6, characterized in that: A driving motor is provided at the top end of the guide rod, an output end of the driving motor is connected to a threaded rod, and the threaded rod passes through the sliding seat.

8. The construction device for high-speed railway prefabricated box beam according to claim 6, characterized in that: The bottom of the working cabin and the sliding platform are both provided with an adjustment seat, and the adjustment seat is rotatably provided with a first rotating shaft and a second rotating shaft. The connecting rod rotates on the adjustment seat through the second rotating shaft, and the axes of the first rotating shaft and the second rotating shaft are perpendicular.

9. A construction device for a high-speed railway prefabricated box girder according to any one of claims 6 to 8, characterized in that: A compensation seat is provided between the working cabin and the adjustment seat, and the compensation seat extends in a direction away from the adjustment seat.

10. The construction device for high-speed railway prefabricated box beam according to claim 1, characterized in that: The periphery of the working cabin is provided with openable and closable protective doors.

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