Self-propelled bridge steel form transfer car
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGDAO QIANJUN INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2026-06-02
- Publication Date
- 2026-07-07
AI Technical Summary
In existing technologies, the cost of transporting steel formwork during bridge construction is high and unstable, requires a large site, and the width of the transport vehicle frame cannot be flexibly adjusted, making it difficult to adapt to uneven road surfaces.
A self-propelled bridge steel formwork transport vehicle was designed. It adopts a structure of longitudinal tubes, guide columns, nylon adjusting sliders and lifting cylinders to realize the synchronous lifting and gap adjustment of the frame. The width is adjusted by combining the mechanical transmission system of drive motor, threaded rod and load-bearing frame, and the chassis adaptive buffer is realized by the hinge structure of inner and outer beams.
It enables stable lifting and disassembly of steel molds, flexible adjustment of frame width, and smooth movement on uneven surfaces, reducing transportation costs and site requirements.
Smart Images

Figure CN122344862A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of bridge construction technology, specifically a self-propelled bridge steel formwork transport vehicle. Background Technology
[0002] The elevated bridge construction employs segmented pouring, with the steel formwork for pouring concrete weighing over 30 tons. This requires multiple disassembly and reuse, as well as short-distance transport. The industry commonly uses cranes for transport, but this is costly, unstable, and requires large sites. Summary of the Invention
[0003] To overcome the shortcomings of existing technologies and solve the problems of achieving lateral expansion and contraction of the frame, lifting of height, and adaptive floating buffer of the chassis through electromechanical drive, this invention proposes a self-propelled bridge steel formwork transfer vehicle.
[0004] The technical solution adopted by the present invention to solve its technical problem is: a self-propelled bridge steel formwork transfer vehicle of the present invention, including a lower beam, characterized in that: an adjustment device is provided on the top of the lower beam, the lower beam and the adjustment device are connected through a flange, and a lifting device is provided on the top of the adjustment device, the adjustment device being used to cooperate with the lifting device for synchronous lifting. The adjusting device includes a longitudinal tube, which is fixed to the lower beam by a flange. A guide column slides on the inner wall of the longitudinal tube, and a nylon adjusting slider is provided on the inner wall of the longitudinal tube. A side load-bearing frame is provided on the top of the guide column. The gap between the longitudinal tube and the guide column can be adjusted by the nylon adjusting slider.
[0005] As a further description of the above technical solution: The lifting device includes a cylinder seat 1, which is located on the top of the outer wall of the guide column. A lifting cylinder is provided on the outer wall of the cylinder seat 1. The bottom of the lifting cylinder is connected to a cylinder seat 2, which is located on the outer wall of the lower beam. The lifting cylinder extends out and lifts the guide column, thereby lifting the side load-bearing frame.
[0006] As a further description of the above technical solution: There are two side load-bearing frames, and an adjustment mechanism is fixed between adjacent side load-bearing frames. A balancing device is provided on the outer wall of the lower beam.
[0007] As a further description of the above technical solution: The adjustment mechanism includes a load-bearing frame one and a load-bearing frame two. A storage groove is provided at the junction of the load-bearing frame one and the load-bearing frame two. A threaded groove one and a threaded groove two are respectively provided on the left and right sides of the storage groove.
[0008] As a further description of the above technical solution: The left side of threaded groove one and the right side of threaded groove two are both provided with sliding grooves. The inner wall of threaded groove one is threadedly connected to threaded rod one, and the inner wall of threaded groove two is threadedly connected to threaded rod two. T-shaped rotating columns are fixed on the left side of threaded rod one and the right side of threaded rod two. The T-shaped rotating column on the left side of threaded rod one slides in the sliding groove on the left side of threaded groove one.
[0009] As a further description of the above technical solution: The T-shaped rotating column on the right side of the second threaded rod slides in the groove on the right side of the second threaded groove. A drive motor is provided in the receiving groove. Threaded rod one and threaded rod two are fixed on the left and right sides of the drive motor, respectively. The thread directions of the outer walls of threaded rod one and threaded rod two are opposite.
[0010] As a further description of the above technical solution: A crossbeam is fixed between the adjacent longitudinal tubes. A crossbeam one is fixed to the top of the right crossbeam, and a crossbeam two is fixed to the top of the left crossbeam. The internal structure of the crossbeam one and crossbeam two is the same as that of the load-bearing frame one and the load-bearing frame two. The width of the device is adjusted by driving the threaded rods one and two on the left and right sides through the drive motor.
[0011] As a further description of the above technical solution: The balancing device includes a lower right inner beam and a lower right outer beam on the outside of the lower right inner beam. The lower right inner beam and the lower right outer beam are hinged by a pin. When passing over uneven road surfaces, the lower right inner beam and the lower right outer beam float up and down to ensure stable walking.
[0012] The advantages of this invention are: 1. By setting up a structure of longitudinal tube, guide column, nylon adjusting slider, side load-bearing frame and lifting cylinder, the lifting cylinder lifts the guide column and drives the side load-bearing frame to lift synchronously and perform gap adjustment movement under the action of nylon adjusting slider, so as to realize the smooth lifting of the load-bearing steel formwork and facilitate the disassembly and transportation of the upper and lower beams. 2. By setting up a drive motor, threaded rod one, threaded rod two, load-bearing frame one, and load-bearing frame two, the drive motor drives threaded rod one and threaded rod two to rotate, which pushes load-bearing frame one and load-bearing frame two to both sides to extend the movement, thereby realizing the flexible adjustment of the overall width of the transfer vehicle to solve the problem that the width of the transfer vehicle frame cannot be flexibly adjusted.
[0013] 3. By setting up a lower right inner beam, a lower right outer beam, and a pin structure, the lower right outer beam moves up and down relative to the lower right inner beam around the pin, realizing adaptive cushioning of the chassis to solve the problem of vehicle body tilting and causing instability when driving over uneven road surfaces. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the load-bearing frame two structure of the present invention; Figure 3 This is a schematic diagram of the T-shaped rotating column structure of the present invention; Figure 4 This is a schematic diagram of the threaded groove structure of the present invention; Figure 5 This is a schematic diagram of the flange structure of the present invention; Figure 6 This is a schematic diagram of the second crossbeam structure of the present invention; Figure 7 This is a schematic diagram of the guide post structure of the present invention; Figure 8 This is a schematic diagram of the structure of the cylinder seat of the present invention; Figure 9 This is a schematic diagram of the nylon adjusting slider structure of the present invention; Figure 10 This is a schematic diagram of the lower right outer beam structure of the present invention; Figure 11 This is a schematic diagram of the pin structure of the present invention.
[0016] In the diagram: 1. Lower beam; 2. Adjustment device; 201. Longitudinal tube; 202. Guide column; 203. Nylon adjusting slider; 3. Adjustment mechanism; 301. Load-bearing frame one; 302. Load-bearing frame two; 303. T-shaped rotating column; 304. Threaded rod one; 305. Drive motor; 306. Threaded rod two; 307. Slide groove; 308. Storage groove; 309. Threaded groove one; 310. Threaded groove two; 311. Crossbeam one; 312. Crossbeam two; 4. Side load-bearing frame; 5. Lifting device; 501. Cylinder seat one; 502. Cylinder seat two; 503. Lifting cylinder; 6. Balancing device; 601. Lower right inner beam; 602. Lower right outer beam; 603. Pin; 7. Flange. Detailed Implementation
[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0018] Example 1 Please see Figures 1-9 As shown, a self-propelled bridge steel formwork transfer vehicle includes a lower beam 1; an adjustment device 2 is provided on the top of the lower beam 1, and the lower beam 1 and the adjustment device 2 are connected by a flange 7. A lifting device 5 is provided on the top of the adjustment device 2. The adjustment device 2 includes a longitudinal pipe 201, which is fixed to the lower beam 1 by the flange 7. A guide column 202 slides on the inner wall of the longitudinal pipe 201, and a nylon adjusting slider 203 is provided on the inner wall of the longitudinal pipe 201. A side load-bearing frame 4 is provided on the top of the guide column 202. The lifting device 5 includes a first cylinder seat 501, which is located on the top of the outer wall of the guide column 202. A lifting cylinder 503 is provided on the outer wall of the first cylinder seat 501, and the bottom of the lifting cylinder 503 is connected to a second cylinder seat 502, which is located on the outer wall of the lower beam 1. By configuring a structure consisting of a longitudinal tube 201, guide columns 202, nylon adjusting sliders 203, a side load-bearing frame 4, and a lifting cylinder 503, the lifting cylinder 503 lifts the guide columns 202, causing the side load-bearing frame 4 to lift synchronously. Under the action of the nylon adjusting sliders 203, the gap is adjusted, achieving stable lifting of the load-bearing steel mold and facilitating the disassembly and transfer of the upper and lower beams. The lower beam 1 and the longitudinal tube 201 are connected as a whole by flanges 7, and can be disassembled into upper and lower beams for easy transfer during transportation. The transfer vehicle is equipped with a side load-bearing frame 4, which is connected to the guide columns 202 by flanges 7, with the load-bearing point resting on the center of the guide columns 202. The transfer vehicle is equipped with four guide columns 202, the upper part of which is connected to the side load-bearing frame 4 by flanges 7, which are reinforced with ribs. The main body of the guide column 202 is inserted into the longitudinal tube 201, and the inner wall of the longitudinal tube 201 is equipped with nylon adjusting sliders 203, which can adjust the gap between the guide column 202 and the longitudinal tube 201. By extending the lifting cylinder 503, the guide column 202 is lifted, thereby stabilizing the lifting side load-bearing frame 4.
[0019] Example 2 Please see Figures 1-4As shown in the comparison with Embodiment 1, as another embodiment of the present invention, two side load-bearing frames 4 are provided, and an adjustment mechanism 3 is fixed between adjacent side load-bearing frames 4. The adjustment mechanism 3 includes a first load-bearing frame 301 and a second load-bearing frame 302. A storage groove 308 is provided at the junction of the first load-bearing frame 301 and the second load-bearing frame 302. A first threaded groove 309 and a second threaded groove 310 are respectively provided on the left and right sides of the storage groove 308. A sliding groove 307 is provided on the left side of the first threaded groove 309 and the right side of the second threaded groove 310. A first threaded rod 304 is threadedly connected to the inner wall of the first threaded groove 309, and a second threaded rod 306 is threadedly connected to the inner wall of the second threaded groove 310. T-shaped rotating columns 303 are fixed on the left side of threaded rod 304 and the right side of threaded rod 2 306. The T-shaped rotating column 303 on the left side of threaded rod 1 304 slides in the groove 307 on the left side of threaded groove 1 309. The T-shaped rotating column 303 on the right side of threaded rod 2 306 slides in the groove 307 on the right side of threaded groove 2 310. A drive motor 305 is installed in the storage groove 308. Threaded rod 1 304 and threaded rod 2 306 are fixed on the left and right sides of the drive motor 305, respectively. The thread directions of the outer walls of threaded rod 1 304 and threaded rod 2 306 are opposite. A crossbeam is fixed between adjacent longitudinal tubes 201. A crossbeam 1 311 is fixed on the top of the right crossbeam, and a crossbeam 2 312 is fixed on the top of the left crossbeam. By configuring a structure consisting of a drive motor 305, threaded rod 304, threaded rod 306, and load-bearing frames 301 and 302, the drive motor 305 rotates the threaded rods 304 and 306, pushing the load-bearing frames 301 and 302 to both sides, thus achieving flexible adjustment of the overall width of the transport vehicle. The main frame of the transport vehicle is connected by crossbeams 311 and 312, which are connected to the longitudinal pipe 201 via flanges 7. The crossbeams 311 and 312 are arched, allowing vehicles to pass through during construction. When the overall width needs to be adjusted, the drive motor 305 is started, which drives the threaded rods 304 and 306 to rotate. Then, the load-bearing frame 301 and the load-bearing frame 302 are pushed smoothly to both sides, and the crossbeam also expands and contracts in sync. After adjusting to a suitable width, the drive motor 305 stops working.
[0020] Example 3 Please see Figures 10-11As shown in the comparative embodiment one, as another implementation of the present invention, a balancing device 6 is provided on the outer wall of the lower beam 1. The balancing device 6 includes a lower right inner beam 601 and a lower right outer beam 602 on the outer side of the lower right inner beam 601. The lower right inner beam 601 and the lower right outer beam 602 are hinged together by a pin 603. By setting the structure of the lower right inner beam 601, the lower right outer beam 602 and the pin 603, the lower right outer beam 602 floats up and down relative to the lower right inner beam 601 around the pin 603, realizing the chassis adaptive buffer to solve the problem of vehicle body tilting and unstable driving when passing through uneven road surfaces. The lower right beam of the transport vehicle adopts an inner and outer beam hinge mechanism. The lower right inner beam 601 and the lower right outer beam 602 are hinged together by the pin 603, forming a floating connection point with a degree of freedom of movement. When the massive transport vehicle traverses uneven, potholed construction roads, the lower right inner beam 601 remains stationary as the main support, while the outer lower right outer beam 602 automatically moves up and down according to the terrain's undulations, thus absorbing the impact from the uneven ground and ensuring the vehicle's smooth operation.
[0021] The working principle is as follows: First, during the preparation for the bridge steel formwork transfer operation, the transfer vehicle needs to be properly assembled and supported by jacking. The lower beam 1 and the longitudinal pipe 201 are connected into a solid whole by flange 7. During long-distance transportation, this assembly can be disassembled into upper and lower parts, greatly facilitating the transfer. The main frame of the transfer vehicle is bridging the gap between crossbeam 1 311 and crossbeam 2 312. Crossbeam 1 311, crossbeam 2 312, and longitudinal pipe 201 are all connected by flange 7, and the crossbeams have an arched structure to allow other auxiliary vehicles to pass through during construction. The transfer vehicle is equipped with four guide columns 202. The upper part of the guide column 202 is connected to the side load-bearing frame 4 by flange 7. Reinforcing ribs are installed at flange 7 to ensure load-bearing strength. The main body of the guide column 202 is inserted into the longitudinal pipe 201. The inner wall of the longitudinal pipe 201 is equipped with a nylon adjusting slider 203, which can dynamically adjust the friction gap between the guide column 202 and the longitudinal pipe 201. A cylinder seat 501 is installed at the upper end of the guide column 202, and a cylinder seat 502 is installed at the lower beam 1. A lifting cylinder 503 is installed between the two. The lifting cylinder 503 extends hydraulically to steadily lift the guide column 202, thereby lifting the top side load-bearing frame 4. At this time, in order to cope with complex road conditions, the lower beam of the transfer vehicle adopts an inner and outer beam hinge mechanism. The lower right inner beam 601 and the lower right outer beam 602 are hinged by a pin 603. When passing through uneven road surfaces, the lower right inner beam 601 remains stationary, while the lower right outer beam 602 floats up and down to compensate for ground differences.
[0022] Finally, when transporting steel formwork of different sizes, the operator needs to flexibly adjust the overall width of the vehicle. The operator starts the drive motor 305 located in the storage slot 308. The drive motor 305 begins to output rotational power, synchronously driving the threaded rods 304 and 306 on both sides to rotate. Since the thread directions of the outer walls of the threaded rods 304 and 306 are completely opposite, the rotation of the threads converts them into a strong translational thrust, which in turn pushes the load-bearing frames 301 and 302 along the slide 307 to both sides. During the lateral unfolding process, the T-shaped rotating columns 303 at the ends slide smoothly in the corresponding slide 307, providing rigid guiding support. At the same time, the crossbeams 311 and 312, which have the same internal structure, also synchronously complete the width extension. When the load-bearing frames 301 and 302 are pushed out and adjusted to the optimal width to match the current steel formwork, the drive motor 305 stops working. With this fully automated mechanical screw transmission system, the transport vehicle has completely eliminated the need for cumbersome manual modifications and perfectly adapts to the changing transportation needs of large bridge construction sites.
[0023] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.
Claims
1. A self-propelled bridge steel formwork transfer vehicle, comprising a lower beam (1), characterized in that: An adjustment device (2) is provided on the top of the lower beam (1). The lower beam (1) and the adjustment device (2) are connected by a flange (7). A lifting device (5) is provided on the top of the adjustment device (2). The adjustment device (2) is used to cooperate with the lifting device (5) for synchronous lifting. The adjusting device (2) includes a longitudinal tube (201), which is fixed to the lower beam (1) by a flange (7). A guide column (202) slides on the inner wall of the longitudinal tube (201), and a nylon adjusting slider (203) is provided on the inner wall of the longitudinal tube (201). A side load-bearing frame (4) is provided on the top of the guide column (202). The gap between the longitudinal tube (201) and the guide column (202) can be adjusted by the nylon adjusting slider (203).
2. The wardrobe storage box according to claim 1, characterized in that: The lifting device (5) includes a cylinder seat one (501), which is located on the top of the outer wall of the guide column (202). A lifting cylinder (503) is provided on the outer wall of the cylinder seat one (501). The bottom of the lifting cylinder (503) is connected to a cylinder seat two (502). The cylinder seat two (502) is located on the outer wall of the lower beam (1). The lifting cylinder (503) extends out and lifts the guide column (202), thereby lifting the side load-bearing frame (4).
3. A wardrobe storage box according to claim 2, characterized in that: There are two side load-bearing frames (4), and an adjustment mechanism (3) is fixed between adjacent side load-bearing frames (4). A balancing device (6) is provided on the outer wall of the lower beam (1).
4. A wardrobe storage box according to claim 3, characterized in that: The adjustment mechanism (3) includes a load-bearing frame one (301) and a load-bearing frame two (302). A storage groove (308) is provided at the junction of the load-bearing frame one (301) and the load-bearing frame two (302). A threaded groove one (309) and a threaded groove two (310) are respectively provided on the left and right sides of the storage groove (308).
5. A wardrobe storage box according to claim 4, characterized in that: Slide grooves (307) are provided on the left side of thread groove one (309) and the right side of thread groove two (310). Thread rod one (304) is threadedly connected to the inner wall of thread groove one (309), and thread rod two (306) is threadedly connected to the inner wall of thread groove two (310). T-shaped rotating columns (303) are fixed on the left side of thread rod one (304) and the right side of thread rod two (306). The T-shaped rotating column (303) on the left side of thread rod one (304) slides in the slide groove (307) on the left side of thread groove one (309).
6. A wardrobe storage box according to claim 5, characterized in that: The T-shaped rotating column (303) on the right side of the threaded rod two (306) slides in the groove (307) on the right side of the threaded groove two (310). A drive motor (305) is provided in the receiving groove (308). Threaded rod one (304) and threaded rod two (306) are fixed on the left and right sides of the drive motor (305) respectively. The thread direction of the outer wall of threaded rod one (304) and threaded rod two (306) is opposite.
7. A wardrobe storage box according to claim 6, characterized in that: A crossbeam is fixed between the adjacent longitudinal tubes (201). A crossbeam one (311) is fixed at the top of the right crossbeam, and a crossbeam two (312) is fixed at the top of the left crossbeam. The internal structure of the crossbeam one (311) and the crossbeam two (312) is the same as that of the load-bearing frame one (301) and the load-bearing frame two (302). The width of the device is adjusted by driving the threaded rod one (304) and the threaded rod two (306) on the left and right sides through the drive machine (305).
8. A wardrobe storage box according to claim 3, characterized in that: The balancing device (6) includes a lower right inner beam (601) and a lower right outer beam (602) is provided on the outside of the lower right inner beam (601). The lower right inner beam (601) and the lower right outer beam (602) are hinged by a pin (603). When passing through an uneven road surface, the lower right inner beam (601) and the lower right outer beam (602) float up and down to ensure stable walking.