Trackless hydraulic formwork trolley

Abstract

The utility model discloses a trackless hydraulic template trolley relates to hydraulic template trolley technical field, this trackless hydraulic template trolley, including trolley body, four corner places of trolley body bottom all are equipped with adjustable moving mechanism, and adjustable moving mechanism is used for adjusting the moving direction of trolley body, and the inside of trolley body is provided with two groups of first limiting component and two groups of second limiting component, and first limiting component and second limiting component cross arrangement and pass through bolt fixed, and first limiting component and second limiting component follow the moving direction switching use of adjustable moving mechanism, make trolley body keep linear movement state in the process of advancing. The utility model discloses through setting adjustable moving mechanism and inside configuration limiting component with spring buffer in trolley bottom four corners, has realized the flexible steering under the condition of trackless, accurate control and linear stable operation, has promoted equipment adaptability and construction quality.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic formwork trolley technology, and in particular to a trackless hydraulic formwork trolley. Background Technology

[0002] In the construction of large-scale underground projects such as tunnel lining, underground utility tunnels, and subway construction, hydraulic formwork trolleys are widely used as key equipment for concrete pouring and forming, and are used for formwork and positioning of arch and wall structures.

[0003] Traditional formwork trolleys rely on pre-embedded tracks in the ground for movement, which has problems such as long installation cycle, poor adaptability, and difficulty in dealing with complex and changing construction environments. The lack of flexibility of track-mounted trolleys is particularly prominent in situations with uneven geological conditions, limited space, or frequent site relocation.

[0004] Meanwhile, due to uneven ground and undulating sidewalls often present on underground work surfaces, the trolley is prone to deviating when moving on its own in a trackless or semi-trackless state, resulting in inaccurate template positioning and affecting the forming quality and construction precision of the concrete structure.

[0005] Therefore, there is an urgent need for a hydraulic formwork trolley with trackless autonomous movement capability, flexible steering, and effective guarantee of straight-line walking stability, in order to improve construction efficiency, reduce construction costs, and meet the needs of modern underground engineering for high-precision and highly mobile construction equipment. Utility Model Content

[0006] This utility model provides a trackless hydraulic template trolley, including a trolley body. Adjustable moving mechanisms are installed at the four corners of the bottom of the trolley body. The adjustable moving mechanisms are used to adjust the moving direction of the trolley body. The trolley body is provided with two sets of first limiting components and two sets of second limiting components. The first limiting components and the second limiting components are arranged crosswise and fixed with bolts. The first limiting components and the second limiting components switch with the moving direction of the adjustable moving mechanisms, so that the trolley body maintains a straight-line moving state during the movement.

[0007] Preferably, the adjustable moving mechanism includes a connecting plate, which is connected to the bottom of the trolley body by bolts. A fixed plate is connected to the lower end of the connecting plate, and a moving part is rotatably arranged at the center of the fixed plate.

[0008] Preferably, the movable component includes a gear ring that rotates on a fixed plate, a drive wheel that is rotatably mounted on the fixed plate and driven by a motor, the drive wheel meshing with the gear ring, a vertical plate that is fixedly mounted on the lower side of the gear ring, and a movable wheel that is rotatably mounted on the vertical plate and driven by a motor.

[0009] Preferably, the first limiting component and the second limiting component have the same structure. The first limiting component includes a long plate, and connecting plates are fixedly provided at both ends of the long plate. The connecting plates are fixed to the trolley body by bolts.

[0010] Preferably, both ends of the long plate are equipped with hydraulic cylinders, the piston end of the hydraulic cylinder is connected to one end of the hollow sleeve, the interior of the hollow sleeve is slidably engaged with one end of the U-shaped sleeve, and a limit wheel is rotatably provided inside the U-shaped sleeve.

[0011] Preferably, a spring is provided inside the hollow sleeve, and one end of the spring is connected to one end of the U-shaped sleeve.

[0012] This utility model provides a trackless hydraulic template trolley, which, compared with the prior art, has the following advantages:

[0013] This utility model achieves flexible steering and multi-directional movement of the trolley under trackless conditions by setting adjustable moving mechanisms at the four corners of the bottom of the trolley body. This significantly improves the adaptability and maneuverability of the equipment in complex construction environments. The adjustable moving mechanism adopts a motor-driven drive wheel and gear ring meshing structure, which drives the overall moving wheel to rotate and achieve steering. The structure is compact and the transmission is stable. With the independent control of dual motors (motor one for steering and motor two for walking), precise motion control can be achieved. The trolley body is equipped with a first limit component and a second limit component arranged in a cross pattern and fixed with bolts. The corresponding limit component can be switched to be activated according to the direction of movement. The hydraulic cylinder pushes the limit wheel to extend, making it fit against the tunnel sidewall or construction reference surface, thereby effectively suppressing lateral deviation during the movement of the formwork trolley and ensuring its stable operation along a straight line. This improves the positioning accuracy of the template and the construction quality. The first and second limit components are equipped with a sliding structure with spring buffer (a hollow sleeve and a U-shaped sleeve working together), which can automatically adjust the pressure when the limit wheel contacts an uneven surface, avoiding rigid impact and extending the structural life. The overall structure is reasonably designed and highly integrated, with good mobility, directional controllability and operational stability. It is suitable for various tunnel lining, underground engineering and other construction scenarios that require high accuracy in the straight-line movement of the template trolley. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2This is a schematic plan view of the overall structure of an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the adjustable moving mechanism structure according to an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the first limiting component and the second limiting component according to an embodiment of the present utility model;

[0019] Figure 5 This is a cross-sectional view of the first limiting component structure according to an embodiment of the present utility model;

[0020] Figure 6 This is an embodiment of the present utility model. Figure 5 A schematic diagram of the structure at point A.

[0021] Figure label:

[0022] 1. Trolley body; 2. Adjustable moving mechanism; 21. Connecting plate; 22. Fixing plate; 23. Gear ring; 24. Drive wheel; 25. Motor 1; 26. Vertical plate; 27. Moving wheel; 28. Motor 2; 3. First limiting assembly; 31. Long plate; 32. Connecting plate; 33. Hydraulic cylinder; 34. Hollow sleeve; 35. U-shaped sleeve; 36. Limiting wheel; 37. Spring; 4. Second limiting assembly. Detailed Implementation

[0023] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0024] Please refer to Figures 1-3 This utility model provides a trackless hydraulic template trolley, including a trolley body 1. Adjustable moving mechanisms 2 are installed at the four corners of the bottom of the trolley body 1. The adjustable moving mechanisms 2 are used to adjust the moving direction of the trolley body 1.

[0025] Each adjustable moving mechanism 2 includes a connecting plate 21, which is connected to the trolley body 1 by bolts, and a fixing plate 22 is set at its lower end. A gear ring 23 is mounted in the center of the fixing plate 22. The gear ring 23 is driven to rotate by the drive wheel 24 driven by the motor 1 25. A vertical plate 26 is provided below the gear ring 23. The vertical plate 26 is equipped with moving wheels 27 driven by the motor 28. Together, they realize the steering and moving functions of the trolley, so that the trolley can flexibly adjust its direction of travel without relying on the track, which greatly improves the mobility of the equipment in narrow or complex construction environments.

[0026] The system adopts a dual-motor independent drive design, with motor 25 dedicated to steering control and motor 28 dedicated to driving the moving wheel 27 forward or backward. This achieves decoupled control of steering and walking functions, making it easier to achieve synchronous steering and walking of multiple wheels through the control system, thereby improving running stability and trajectory control accuracy.

[0027] Furthermore, each of the four corners is equipped with an adjustable moving mechanism 2 with the same structure. Combined with a unified electronic control system, it can achieve synchronous steering and synchronous movement of the four wheels, ensuring the overall coordinated movement of the trolley and avoiding problems such as yaw, jamming or structural stress concentration caused by inconsistent wheel group movements.

[0028] The adjustable moving mechanism 2 adopts a modular design. The connecting plate 21 is connected to the trolley body 1 by bolts, which facilitates disassembly and replacement. The key transmission components are centrally arranged, which is conducive to lubrication, maintenance and troubleshooting. It is suitable for engineering equipment that operates under high load for a long time.

[0029] In addition, such as Figures 4 to 6 As shown, the trolley body 1 is equipped with two sets of first limiting components 3 and two sets of second limiting components 4. The first limiting components 3 and the second limiting components 4 are arranged in a cross manner and fixed with bolts. When the trolley moves in a certain direction, the limiting component in the corresponding direction can be selected to ensure high-precision linear guidance under different movement paths, which solves the problem of trackless trolleys easily running off course and ensures that the trolley maintains a straight path during movement.

[0030] The first limiting component 3 and the second limiting component 4 have the same structure. Each first limiting component 3 includes a long plate 31 with connecting plates 32 at both ends, which are fixed to the trolley body 1 by bolts.

[0031] The long plate 31 is equipped with hydraulic cylinders 33 at both ends, and the piston end of the cylinder is connected to the hollow sleeve 34. The hollow sleeve 34 is equipped with a U-shaped sleeve 35 and a rotating limit wheel 36. The spring 37 is placed inside the hollow sleeve 34, with one end connected to the U-shaped sleeve 35. The hydraulic cylinder 33 pushes the U-shaped sleeve 35 outward, so that the limit wheel 36 presses against the tunnel sidewall or reference surface, providing a stable anti-lateral offset force to ensure that the trolley does not slide laterally. The spring 37 inside the hollow sleeve 34 is compressed when the limit wheel 36 contacts an uneven surface, which plays an automatic buffering and adaptive adjustment role, avoiding structural damage or wheel damage caused by rigid impact, and improving the adaptability and service life of the equipment under complex working conditions.

[0032] The limit wheel 36 is a rotating structure. When it is against the side wall, it can roll with the trolley to avoid excessive resistance or wear caused by sliding friction and ensure smooth operation of the trolley.

[0033] After the trolley is in place, all hydraulic cylinders 33 are in a retracted state, and the limit wheels 36 retract into the hollow sleeve 34, not contacting the surrounding structure, ensuring that the trolley can move or turn freely.

[0034] In summary, motor 1 25 and motor 2 28 synchronously control multiple moving wheels 27 to turn and move simultaneously through the control system. When it is necessary to adjust the direction of the trolley movement, motor 1 25 drives the drive wheel 24 to rotate, which in turn drives the gear ring 23 to rotate, thereby changing the direction of the moving wheels 27. Motor 2 28 is responsible for driving the moving wheels 27 forward or backward. At the same time, the appropriate first limit component 3 or second limit component 4 is selected according to the direction of travel, and the hydraulic cylinder 33 pushes the limit wheel 36 to extend so that it fits against the tunnel sidewall or construction reference surface, ensuring that the trolley runs stably along a straight line, thereby improving the positioning accuracy of the template and the construction quality.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A trackless hydraulic formwork trolley, characterized in that: The trolley body (1) includes an adjustable moving mechanism (2) installed at each of the four corners of the bottom of the trolley body (1). The adjustable moving mechanism (2) is used to adjust the moving direction of the trolley body (1). The trolley body (1) is equipped with two sets of first limiting components (3) and two sets of second limiting components (4). The first limiting components (3) and the second limiting components (4) are arranged crosswise and fixed with bolts. The first limiting components (3) and the second limiting components (4) switch with the moving direction of the adjustable moving mechanism (2) so that the trolley body (1) maintains a straight-line moving state during the movement.

2. The trackless hydraulic template trolley according to claim 1, characterized in that: The adjustable moving mechanism (2) includes a connecting plate (21), which is connected to the bottom of the trolley body (1) by bolts. A fixing plate (22) is connected to the lower end of the connecting plate (21), and a moving part is rotatably arranged at the center of the fixing plate (22).

3. The trackless hydraulic template trolley according to claim 2, characterized in that: The movable component includes a gear ring (23) that rotates on a fixed plate (22). A drive wheel (24) is rotatably mounted on the fixed plate (22). The drive wheel (24) is driven by a motor (25). The drive wheel (24) meshes with the gear ring (23). A vertical plate (26) is fixedly mounted on the lower side of the gear ring (23). A movable wheel (27) is rotatably mounted on the vertical plate (26). The movable wheel (27) is driven by a motor (28).

4. The trackless hydraulic template trolley according to claim 1, characterized in that: The first limiting component (3) and the second limiting component (4) have the same structure. The first limiting component (3) includes a long plate (31), and connecting plates (32) are fixedly provided at both ends of the long plate (31). The connecting plates (32) are fixed to the trolley body (1) by bolts.

5. The trackless hydraulic template trolley according to claim 4, characterized in that: Both ends of the long plate (31) are equipped with hydraulic cylinders (33). The piston end of the hydraulic cylinder (33) is connected to one end of the hollow sleeve (34). The interior of the hollow sleeve (34) is slidably engaged with one end of the U-shaped sleeve (35). A limit wheel (36) is rotatably provided inside the U-shaped sleeve (35).

6. The trackless hydraulic template trolley according to claim 5, characterized in that: A spring (37) is provided inside the hollow sleeve (34), and one end of the spring (37) is connected to one end of the U-shaped sleeve (35).

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