Dynamic adjustable tunnel trolley walking support system based on multiple hydraulic cooperation

Abstract

The present application relates to the technical field of tunnel construction equipment, in particular to a dynamic adjustable tunnel trolley walking support system based on multi-hydraulic coordination, comprising two groups of front and rear parallel fixed bottom bins, the fixed bottom bin comprises a bin body shell, a transverse moving part, a longitudinal walking wheel and a support part, the bin body shell top is provided with a support device, and the top of the two groups of support devices is connected with the same group of top connecting devices. The multi-station numerical control spectacle frame milling machining center breaks through the limitation of the traditional fixed structure by the size adjusting mechanism of the frame in the top connecting device, the transverse connecting beam is driven by the lifting hydraulic cylinder to move flexibly in the transverse butt joint beam, the dynamic adjustment of the overall width of the tunnel trolley is realized, the size of the trolley can still be adjusted in real time according to the internal space of the tunnel after the assembly is completed, the adaptability to the complex tunnel environment is improved, the preparation work before construction is simplified, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction equipment, and in particular to a dynamically adjustable tunnel trolley travel support system based on multi-hydraulic coordination. Background Art

[0002] With the rapid development of railway and highway construction, the technical specifications for tunnel and culvert construction are becoming increasingly stringent. It is necessary to ensure efficient and high-quality construction requirements, while advocating energy-saving, environmental protection, green and low-carbon construction concepts, requiring construction to save costs and reduce the labor intensity of construction workers. Tunnel trolleys, which are movable working platforms built inside tunnels, are widely used by construction units.

[0003] The patent application with application number CN202210784652.3 discloses a tunnel excavation support and maintenance system for rock construction, including a tunnel excavation support and maintenance system for rock construction, including a No. 1 walking frame and a No. 2 walking frame. There are two No. 1 walking frames and two No. 2 walking frames. The two No. 1 walking frames are arranged on one side of the bottom of the bearing platform, and the two No. 2 walking frames are arranged on the other side of the bottom of the bearing platform. Reinforcement frames are provided between the two No. 1 walking frames, the No. 2 walking frames and the bottom of the bearing platform. The No. 1 support frame, the No. 2 support frame and the support plate are used to support the rock construction tunnel excavation. Combined with the walking wheels, a support and maintenance trolley is formed, which is flexible to move and has higher safety for maintenance operations. The design of the safety ladder makes the equipment safe and convenient to go up and down.

[0004] However, the traditional dynamically adjustable tunnel trolley travel support system based on multi-hydraulic coordination has significant limitations in construction. First, the size of the trolley is fixed after assembly and cannot be dynamically adjusted according to the internal space of the tunnel, resulting in poor construction flexibility and the need for frequent disassembly or manual intervention to adapt to different working conditions, which is time-consuming and labor-intensive. Second, it relies on multiple independent hydraulic systems to control movement, support and stabilization functions respectively, which not only increases equipment costs and maintenance complexity, but also requires additional external hydraulic devices to ensure the stability of the bottom structure. The operation process is cumbersome and inefficient. In addition, the existing solution lacks integrated control when switching between mobile and fixed states, making it difficult to balance rapid adjustment and construction stability, restricting the efficiency and safety of tunnel construction.

[0005] In view of this, we propose a dynamically adjustable tunnel trolley travel support system based on multi-hydraulic collaboration. Summary of the Invention

[0006] The purpose of the present invention is to provide a dynamically adjustable tunnel trolley walking support system based on multi-hydraulic coordination. Through the frame size adjustment mechanism in the top connecting device, the upward hydraulic cylinder is used to drive the transverse connecting beam to move flexibly within the transverse docking beam, thereby realizing dynamic adjustment of the overall width of the tunnel trolley to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The dynamically adjustable tunnel trolley travel support system based on multi-hydraulic coordination includes two sets of fixed bottom silos arranged in parallel front and back. The fixed bottom silos include a silo shell, a transverse moving part, longitudinal travel wheels and a support part. A support device is provided on the top of the silo shell. The tops of the two sets of support devices are connected to the same set of top connecting devices.

[0009] This setting integrates the lateral moving part, longitudinal travel wheels and support part through a modular warehouse shell, and cooperates with the top support device and connection device to achieve multifunctional integration of tunnel trolley travel, adjustment and fixation.

[0010] The support device includes a longitudinal support column, a transverse support adjustment part, a double-rod hydraulic cylinder and a connecting cross plate. The double-rod hydraulic cylinder is arranged at the bottom of the middle longitudinal support column and is connected to the transverse moving part and the transverse support adjustment part through a telescopic rod.

[0011] This setting is based on a double-rod hydraulic cylinder, which links the lateral moving part and the lateral support adjustment part through telescopic rods to achieve synchronous and precise control of the trolley lifting, lateral displacement and support rod length.

[0012] The lateral support adjustment portion includes a movable platform, a first connecting rod and a lateral support rod, the first connecting rod rotatably connects the movable platform and the lateral support rod, and the double-rod hydraulic cylinder drives the movable platform to rise and fall to adjust the extension length of the lateral support rod;

[0013] This setting is used to convert the hydraulically driven vertical displacement into the horizontal extension and contraction of the transverse support rod through the mechanical linkage of the movable platform and the first connecting rod, so as to quickly adapt to the requirements of different tunnel cross-section dimensions.

[0014] The top connecting device includes a top fixed frame, a frame size adjustment device and a connecting part. The frame size adjustment device includes a movable plate in the frame, a second connecting rod, a transverse connecting beam and an upward hydraulic cylinder. The upward hydraulic cylinder drives the movable plate in the frame to rise and fall to move laterally through the second connecting rod to link the transverse connecting beam.

[0015] This setting is used to drive the movable plate in the frame to rise and fall through the lifting hydraulic cylinder, and move the transverse connecting beam horizontally through the second connecting rod, dynamically adjust the overall width of the trolley, and improve adaptability to complex working conditions.

[0016] In the technical solution of the present invention, the inner side walls at both ends of the front and rear ends of the warehouse shell are provided with the same number of inner sliding grooves with corresponding positions, and a top through groove that runs through the upper and lower parts is provided at the center position of the top surface of the warehouse shell. A partition plate is integrally formed between the front and rear inner side walls at the left and right ends of the warehouse shell, and the outer side walls at both ends of the front and rear ends of the warehouse shell are provided with rectangular through grooves that run through the inside and outside and provide rotation space for the support part. The left and right ends of the inner top surface of the warehouse shell are fixedly connected with longitudinal walking wheels for moving the entire device in the tunnel by bolts.

[0017] This setting uses a split-chamber structural design to physically isolate the longitudinal walking wheels, transverse moving parts and support parts, reducing mechanical interference during dynamic operations. The precise grooving process of the slide grooves inside the warehouse and the through grooves on the warehouse top ensures that the vertical movement trajectory of the double-rod hydraulic cylinder is controllable.

[0018] In the technical solution of the present invention, the lateral moving part includes a fixed plate, a number of plate sliders integrally formed on the outer side walls at the front and rear ends of the fixed plate, a reinforcing bracket welded and fixed to the bottom surface of the fixed plate, a top rod welded and fixed to the outer side walls at the left and right ends of the reinforcing bracket, and a lateral walking wheel fixed to the bottom surface of the reinforcing bracket by bolts. The number of the plate sliders is the same as that of the slide grooves in the warehouse, the positions correspond one to one, and the sizes are adapted. The top end of the top rod is arc-shaped.

[0019] This setting ensures that the horizontal moving part does not deflect during the lifting process through the slide groove in the warehouse. The curved end face of the top rod is in dynamic contact with the flip plate to realize the mechanical linkage of the "walking-fixed" dual mode.

[0020] In the technical solution of the present invention, the support part includes a rotating shaft with two ends rotatably connected to the left and right end groove walls of the rectangular through groove of the hopper body shell, a flip plate rotatably connected to the outer side wall of the rotating shaft and a first pressure spring welded and fixed to the horizontal plate on the top surface of the flip plate, and the top end of the first pressure spring is welded and fixed to the inner top surface of the hopper body shell.

[0021] This setting converts the displacement of the hydraulically driven jack into ground pressure on the flip plate. The rotating shaft provides a low-friction rotating fulcrum. The L-shaped flip plate enlarges the contact area through the leverage effect. The preload force of the first pressure spring matches the stroke of the jack, ensuring that the flip plate quickly presses the ground during construction to prevent the trolley from slipping. The spring returns to its original position and contracts during movement, reducing component wear and achieving dual optimization of stability and durability.

[0022] In the technical solution of the present invention, the longitudinal support column includes a column shell fixedly connected to the top surface of the warehouse shell by bolts, a transverse fixing rod welded to the outer wall of the column shell, and an annular placement plate welded to the outer wall of the column shell near the top position; a column through groove running through the inside and outside is provided on the outer wall of the column shell below the transverse fixing rod, and a rod bottom slide groove with a T-shaped longitudinal cross-section is provided on the bottom surface of the transverse fixing rod.

[0023] This setting ensures the rigid bearing capacity of the support column through the column groove on the column shell, while providing precise guidance for the movable platform and transverse support rods. The annular placement plate simplifies the rapid positioning and installation of the top device, improving construction efficiency.

[0024] In the technical solution of the present invention, the transverse cross-section of the movable platform is T-shaped and is slidably connected to the inside of the column shell, the transverse support rod is slidably connected to the inside of the bottom slide groove of the bottom surface of the transverse fixed rod, two mounting brackets are welded and fixed on the bottom surface of the transverse support rod, and a docking plate is welded and fixed on the outer side wall of the transverse support rod at one end away from the movable platform, and the top circular axis of the first connecting rod is rotatably connected to the inside of the two mounting brackets.

[0025] This setup converts vertical displacement into linear expansion and contraction of the lateral support rods through the mechanical linkage of the movable table and the first connecting rod. The mounting bracket ensures rotational freedom, and the docking plate directly adapts to the external template, enabling rapid adjustment and precise positioning at multiple stations.

[0026] In the technical solution of the present invention, the double-rod hydraulic cylinder is welded and fixed at a position near the middle of the top surface of the warehouse body shell, the top telescopic rod of the double-rod hydraulic cylinder is fixedly connected to the bottom surface of the movable platform by bolts, and the bottom telescopic rod of the double-rod hydraulic cylinder passes through the top surface of the warehouse body shell and is fixedly connected to the top surface of the fixed plate by bolts. The top surface of the connecting cross plate and the bottom surfaces of several movable platform outer wall brackets are welded and fixed.

[0027] This setting uses the independent dual output shaft design of the double-rod hydraulic cylinder to synchronously drive the lifting and lowering of the movable platform and the displacement of the fixed plate. The cross plate is connected to realize the linkage control of multiple support rods, ensuring the symmetrical expansion of the overall structure during the template installation, and significantly improving the adjustment accuracy and operation consistency.

[0028] In the technical solution of the present invention, the top fixed frame includes a frame shell, a plurality of transverse docking beams welded and fixed on the outer side walls at the front and rear ends of the frame shell, and an inclined support frame welded and fixed between the outer side walls of the frame shell and the top surface of the transverse docking beams. The outer side walls at the front and rear ends of the frame shell are provided with a plurality of frame wall through grooves that penetrate inside and outside and are distributed linearly.

[0029] This setting improves the bending and torsional resistance of the top frame through the composite design of the frame shell and the inclined support frame. The precision processing technology of the frame wall groove and the horizontal connecting beam ensures that the vertical and horizontal bidirectional movement trajectory of the connecting seat and the horizontal connecting beam is controllable, providing a stable foundation for dynamic size adjustment.

[0030] In the technical solution of the present invention, the movable plate in the frame is slidably connected to the inside of the frame shell, and a plurality of linearly arranged connecting seats are fixedly connected with bolts on the top surface of the movable plate in the frame. The other end of the second connecting rod is rotatably connected to the inside of the top surface bracket of the transverse connecting beam, and the transverse connecting beam is slidably connected to the inside of the transverse docking beam. The lifting hydraulic cylinder is fixedly connected to the inner bottom surface of the frame shell by bolts, and the top end of the lifting hydraulic cylinder is fixedly connected to the bottom surface of the movable plate in the frame by bolts. A plurality of regularly distributed second pressure springs are welded and fixed to the bottom surface of the movable plate in the frame, and the other end of the second pressure spring is welded and fixed to the inner bottom surface of the frame shell.

[0031] This setting converts the vertical driving force of the lifting hydraulic cylinder into the horizontal displacement of the transverse connecting beam. The second connecting rod acts as the motion transmission medium, and the second pressure spring balances the load fluctuation. This ensures the smoothness and precision of the size adjustment process and adapts to the complex changes in the tunnel section.

[0032] In the technical solution of the present invention, the connecting part includes a plurality of linearly separated square docking frames and a plurality of connecting brackets welded and fixed between two adjacent groups of square docking frames. The internal space of the square docking frame is adapted to the external dimensions of the column shell, and the bottom cross-sectional dimensions of the square docking frame are adapted to the cross-sectional dimensions of the annular placement plate.

[0033] This setting achieves quick plug-in installation of the top and support device through the matching design of modular square docking frame and standardized connecting bracket.

[0034] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0035] 1. This multi-station CNC eyeglass frame milling processing center uses a frame size adjustment mechanism in the top connection device and an upward hydraulic cylinder to drive the transverse connecting beam to flexibly move within the transverse docking beam, achieving dynamic adjustment of the overall width of the tunnel trolley. This breaks through the limitations of traditional fixed structures and enables the trolley to adjust its size in real time according to the internal space of the tunnel after assembly. This improves its adaptability to complex tunnel environments, simplifies pre-construction preparations, and improves work efficiency.

[0036] 2. This multi-station CNC eyeglass frame milling machining center utilizes an integrated dual-rod hydraulic cylinder design, with a single cylinder controlling the lifting and lowering of the lateral moving section and the extension and retraction of the lateral support rods. The trolley achieves limited movement when the lateral travel wheels contact the ground, while the linkage between the ejector rod and the flip plate ensures the stability of the bottom structure during the construction phase. This integrated solution eliminates the need for additional hydraulic equipment, reducing manufacturing costs and operational complexity. It also enhances the trolley's ability to quickly switch between mobile and fixed states, ensuring both efficient construction and safety and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 This is a schematic diagram of the structural disassembly of the fixed bottom bin in the present invention;

[0039] Figure 3 It is a schematic cross-sectional view of the structure of the silo housing in the present invention;

[0040] Figure 4 It is a schematic cross-sectional view of the structure of the transverse moving part of the present invention;

[0041] Figure 5 Schematic diagram of the structure of the support portion of the present invention;

[0042] Figure 6 Schematic diagram of the structure of the support device in the present invention;

[0043] Figure 7 Schematic diagram of the structure of the longitudinal support column in the present invention;

[0044] Figure 8 It is a partial structural schematic diagram of the supporting device in the present invention;

[0045] Figure 9 This is a schematic diagram of the structure of the transverse support adjustment portion of the present invention;

[0046] Figure 10 Schematic diagram of the structure of the top connecting device in the present invention;

[0047] Figure 11 It is a structural schematic diagram of the top fixing frame in the present invention;

[0048] Figure 12 Schematic diagram of the structure of the frame size adjustment device of the present invention;

[0049] Figure 13 Schematic diagram of the structure of the connecting portion of the present invention;

[0050] Description of reference numerals:

[0051] 100, fixed bottom bin; 110, bin housing; 111, bin inner chute; 112, bin top through-slot; 113, partition plate; 120, transverse moving portion; 121, fixed plate; 122, plate slider; 123, reinforcement bracket; 124, ejector rod; 125, transverse running wheel; 130, longitudinal running wheel; 140, support portion; 141, rotation axis; 142, flip plate; 143, first pressure spring;

[0052] 200, support device; 210, longitudinal support column; 211, column housing; 2110, column through slot; 212, transverse fixing rod; 213, annular placement plate; 220, transverse support adjustment portion; 221, movable platform; 222, first connecting rod; 223, transverse support rod; 224, mounting bracket; 225, docking plate; 230, double-rod hydraulic cylinder; 240, connecting cross plate;

[0053] 300. Top connecting device; 310. Top fixed frame; 311. Frame shell; 3110. Frame wall through groove; 312. Horizontal docking beam; 313. Inclined support frame; 320. Frame size adjustment device; 321. Movable plate in frame; 322. Connecting seat; 323. Second connecting rod; 324. Horizontal connecting beam; 325. Lifting hydraulic cylinder; 326. Second pressure spring; 330. Connecting part; 331. Square docking frame; 332. Connecting bracket. DETAILED DESCRIPTION

[0054] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0055] See also Figures 1-13 , the present invention provides a technical solution:

[0056] The dynamically adjustable tunnel trolley travel support system based on multi-hydraulic coordination includes two sets of fixed bottom silos 100 arranged in parallel in front and behind. The fixed bottom silos 100 include a silo shell 110, a transverse moving part 120, longitudinal travel wheels 130 and a support part 140. A support device 200 is provided on the top of the silo shell 110. The tops of the two sets of support devices 200 are connected to the same set of top connecting devices 300.

[0057] See also Figure 2-Figure 5As shown, in this embodiment, the inner side walls at both ends of the front and rear ends of the warehouse body shell 110 are provided with the same number of inner warehouse sliding grooves 111 with corresponding positions, and a warehouse top through groove 112 that passes through from top to bottom is provided at the center position of the top surface of the warehouse body shell 110. A partition plate 113 is integrally formed between the front and rear inner side walls at the left and right ends of the warehouse body shell 110, and the outer side walls at both ends of the front and rear ends of the warehouse body shell 110 are provided with rectangular through grooves that pass through inside and outside to provide a rotation space for the support part 140. The left and right ends of the inner top surface of the warehouse body shell 110 are fixed with longitudinal walking wheels 130 for moving the entire device in the tunnel by bolts.

[0058] Specifically, the transverse moving part 120 includes a fixed plate 121, a number of plate sliders 122 integrally formed on the outer side walls at the front and rear ends of the fixed plate 121, a reinforcing bracket 123 welded and fixed to the bottom surface of the fixed plate 121, a top rod 124 welded and fixed to the outer side walls at the left and right ends of the reinforcing bracket 123, and a transverse walking wheel 125 fixed to the bottom surface of the reinforcing bracket 123 by bolts. The plate sliders 122 are the same in number as the slide grooves 111 in the warehouse, the positions correspond one to one and the sizes are adapted, and the top end of the top rod 124 is arc-shaped.

[0059] Furthermore, the support portion 140 includes a rotating shaft 141 whose two ends are rotatably connected to the left and right end walls of the rectangular through groove of the hopper body shell 110, a flip plate 142 rotatably connected to the outer wall of the rotating shaft 141 and is bent, and a first pressure spring 143 welded and fixed to the horizontal plate on the top surface of the flip plate 142. The top end of the first pressure spring 143 is welded and fixed to the inner top surface of the hopper body shell 110.

[0060] Furthermore, the warehouse shell 110 is used to provide placement space for the transverse moving part 120, the longitudinal walking wheel 130 and the support part 140, the sliding groove 111 in the warehouse is used to facilitate the overall up and down movement of the transverse moving part 120, the warehouse top groove 112 is used to provide a telescopic range for the bottom telescopic rod of the double-rod hydraulic cylinder 230 in the support device 200, and the partition plate 113 is used to separate the separate storage space of the longitudinal walking wheel 130.

[0061] This setting uses a chamber-type structural design to physically isolate the longitudinal walking wheel 130, the transverse moving part 120 and the support part 140, reducing mechanical interference during dynamic operations. The precise grooving process of the chute 111 in the warehouse and the through groove 112 on the warehouse top ensures that the vertical movement trajectory of the double-rod hydraulic cylinder 230 is controllable.

[0062] Furthermore, the fixed plate 121 and the reinforcing bracket 123 are used to ensure the strength of the overall structure of the transverse moving part 120, the plate slider 122 is used to cooperate with the slide groove 111 in the warehouse to limit the up and down movement of the transverse moving part 120, the top rod 124 is used to change the relative position of the flip plate 142 in the support part 140, and the transverse walking wheel 125 is used to facilitate a small range of transverse movement of the overall structure.

[0063] This setting ensures that the transverse moving part 120 does not deflect during the lifting process through the sliding groove 111 in the warehouse, and the curved end surface of the top rod 124 is in dynamic contact with the flip plate 142 to realize the "walking-fixed" dual-mode mechanical linkage.

[0064] Furthermore, the rotating shaft 141 is used to provide a rotation base point for the flip plate 142 , the flip plate 142 is used to ensure the stability of the entire tunnel trolley during construction, and the first pressure spring 143 is used to limit the fixed position of the flip plate 142 .

[0065] This setting converts the displacement of the hydraulically driven jack 124 into the ground pressure of the flip plate 142. The rotating shaft 141 provides a low-friction rotating fulcrum. The L-shaped flip plate 142 enlarges the contact area through the lever effect. The preload force of the first pressure spring 143 matches the stroke of the jack, ensuring that the flip plate 142 quickly presses the ground during construction to prevent the trolley from slipping sideways. The spring returns to its original position and contracts during movement to reduce component wear and achieve dual optimization of stability and durability.

[0066] See also Figure 6-Figure 9 As shown, in this embodiment, the support device 200 includes a longitudinal support column 210, a transverse support adjustment part 220, a double-rod hydraulic cylinder 230 and a connecting cross plate 240. The double-rod hydraulic cylinder 230 is arranged at the bottom of the middle longitudinal support column 210 and is respectively connected to the transverse moving part 120 and the transverse support adjustment part 220 through a telescopic rod.

[0067] Specifically, the longitudinal support column 210 includes a column shell 211 fixed to the top surface of the warehouse shell 110 by bolts, a transverse fixing rod 212 welded to the outer wall of the column shell 211, and an annular placement plate 213 welded to the outer wall of the column shell 211 near the top position. A column through groove 2110 that passes through the inside and outside is opened on the outer wall of the column shell 211 below the transverse fixing rod 212, and a rod bottom slide groove with a T-shaped longitudinal cross-section is opened on the bottom surface of the transverse fixing rod 212.

[0068] Furthermore, the lateral support adjustment part 220 includes a movable platform 221, a first connecting rod 222 and a lateral support rod 223. The first connecting rod 222 rotatably connects the movable platform 221 and the lateral support rod 223. The double-rod hydraulic cylinder 230 drives the movable platform 221 to rise and fall to adjust the extension length of the lateral support rod 223.

[0069] Furthermore, the transverse cross-section of the movable platform 221 is T-shaped and is slidably connected to the inside of the column shell 211, the transverse support rod 223 is slidably connected to the inside of the bottom slide groove of the bottom surface of the transverse fixed rod 212, and two mounting brackets 224 are welded and fixed on the bottom surface of the transverse support rod 223. A docking plate 225 is welded and fixed to the end of the outer wall of the transverse support rod 223 away from the movable platform 221, and the top circular axis of the first connecting rod 222 is rotatably connected to the inside of the two mounting brackets 224.

[0070] Furthermore, the double-rod hydraulic cylinder 230 is welded and fixed to a position near the middle of the top surface of the warehouse body shell 110, and the top telescopic rod of the double-rod hydraulic cylinder 230 is fixedly connected to the bottom surface of the movable platform 221 by bolts. The bottom telescopic rod of the double-rod hydraulic cylinder 230 passes through the top surface of the warehouse body shell 110 and is fixedly connected to the top surface of the fixed plate 121 by bolts. The top surface of the connecting cross plate 240 and the bottom surfaces of several outer wall brackets of the movable platform 221 are all welded and fixed.

[0071] Furthermore, the column shell 211 is used to ensure the strength of the overall structure of the longitudinal support column 210, the column groove 2110 is used to provide an up and down movement range for the movable platform 221, the bottom groove of the rod opened at the bottom of the transverse fixed rod 212 is used to provide a movement range for the transverse support rod 223, and the annular placement plate 213 is used to facilitate the placement of the top connecting device 300.

[0072] This setting ensures the rigid bearing capacity of the longitudinal support column 210 through the column groove 2110 on the column shell 211, while providing precise guidance for the movable platform 221 and the horizontal support rod 223. The annular placement plate 213 simplifies the rapid positioning and installation of the top device, thereby improving construction efficiency.

[0073] Furthermore, the up and down movement of the movable platform 221 cooperates with the first connecting rod 222 to enable the transverse support rod 223 to move parallel to the transverse fixed rod 212, the mounting bracket 224 is used to provide a rotation base point for the top of the first connecting rod 222, and the docking plate 225 is used to provide an installation platform for the template.

[0074] This setting converts vertical displacement into linear expansion and contraction of the transverse support rod 223 through the mechanical linkage of the movable platform 221 and the first connecting rod 222. The mounting bracket 224 ensures the rotational freedom, and the docking plate 225 directly adapts to the external template to achieve rapid adjustment and precise positioning of multiple stations.

[0075] Furthermore, the double-rod hydraulic cylinder 230 is connected to an external power supply to control the up and down movement of the movable platform 221 and the fixed plate 121, and the connecting cross plate 240 is used to connect multiple groups of movable platforms 221 so that multiple groups of horizontal support rods 223 can change their relative positions at the same time.

[0076] This setting uses the independent dual output shaft design of the double-rod hydraulic cylinder 230 to synchronously drive the lifting and lowering of the movable platform 221 and the displacement of the fixed plate 121, and connects the cross plate 240 to realize the linkage control of multiple cross support rods 223, ensuring the symmetrical expansion of the overall structure during the template installation, and significantly improving the adjustment accuracy and operation consistency.

[0077] See also Figure 10-13 As shown, in this embodiment, the top connecting device 300 includes a top fixed frame 310, a frame size adjustment device 320 and a connecting part 330. The frame size adjustment device 320 includes a movable plate 321 in the frame, a second connecting rod 323, a transverse connecting beam 324 and an upward hydraulic cylinder 325. The upward hydraulic cylinder 325 drives the movable plate 321 in the frame to rise and fall so as to link the transverse connecting beam 324 to move horizontally through the second connecting rod 323.

[0078] Specifically, the top fixed frame 310 includes a frame shell 311, a plurality of transverse docking beams 312 welded and fixed to the outer side walls at the front and rear ends of the frame shell 311, and an inclined support frame 313 welded and fixed between the outer side walls of the frame shell 311 and the top surface of the transverse docking beams 312. The outer side walls at the front and rear ends of the frame shell 311 are provided with a plurality of frame wall through grooves 3110 that penetrate inside and outside and are distributed linearly.

[0079] Furthermore, the movable plate 321 in the frame is slidably connected to the inside of the frame shell 311, and a plurality of linearly arranged connecting seats 322 are bolted and fixed on the top surface of the movable plate 321 in the frame. The other end of the second connecting rod 323 is rotatably connected to the inside of the top surface bracket of the transverse connecting beam 324, and the transverse connecting beam 324 is slidably connected to the inside of the transverse docking beam 312. The lifting hydraulic cylinder 325 is fixedly connected to the inner bottom surface of the frame shell 311 by bolts, and the top end of the lifting hydraulic cylinder 325 is fixedly connected to the bottom surface of the movable plate 321 in the frame by bolts. A plurality of regularly distributed second pressure springs 326 are welded and fixed to the bottom surface of the movable plate 321 in the frame, and the other end of the second pressure spring 326 is welded and fixed to the inner bottom surface of the frame shell 311.

[0080] Furthermore, the connecting portion 330 includes a plurality of linearly arranged square docking frames 331 and a plurality of connecting brackets 332 welded and fixed between two adjacent groups of square docking frames 331. The internal space of the square docking frame 331 is adapted to the external dimensions of the columnar shell 211, and the bottom cross-sectional dimensions of the square docking frame 331 are adapted to the cross-sectional dimensions of the annular placement plate 213.

[0081] Furthermore,The frame shell 311 is used to ensure the strength of the overall structure of the top fixed frame 310, the frame wall groove 3110 is used to provide an up and down movement range for the connecting seat 322, the transverse docking beam 312 is used to provide a moving platform for the transverse connecting beam 324, and the inclined support frame 313 is used to further ensure the strength of the overall structure of the top fixed frame 310.

[0082] This configuration improves the top frame's anti-bending and torsional capabilities through the composite design of the frame shell 311 and the inclined support frame 313. The precision machining of the frame wall slot 3110 and the transverse docking beam 312 ensures that the vertical and horizontal bidirectional motion trajectories of the connecting seat 322 and the transverse connecting beam 324 are controllable, providing a stable foundation for dynamic size adjustment.

[0083] Furthermore, the movable plate 321 in the frame is used to provide an installation platform for the connecting seat 322, the second connecting rod 323 is used to drive the change of the position of the transverse connecting beam 324 as the position of the connecting seat 322 changes, and the lifting hydraulic cylinder 325 is used to change the position of the movable plate 321 in the frame after being connected to an external power supply. The second pressure spring 326 is used to assist the lifting hydraulic cylinder 325 in controlling the movement of the position of the movable plate 321 in the frame.

[0084] This setting converts the vertical driving force of the lifting hydraulic cylinder 325 into the horizontal displacement of the transverse connecting beam 324. The second connecting rod 323 serves as the motion transmission medium, and the second pressure spring 326 balances the load fluctuation, ensuring the smoothness and accuracy of the size adjustment process and adapting to the complex changes in the tunnel section.

[0085] Furthermore, the square docking frame 331 is used to facilitate the installation between the top connecting device 300 and the supporting device 200 , and the connecting bracket 332 is used to connect multiple groups of square docking frames 331 to ensure the strength of the overall structure of the connecting part 330 .

[0086] This configuration achieves quick plug-in installation of the top and the support device 200 through the matching design of the modular square docking frame 331 and the standardized connecting bracket 332.

[0087] Finally, it should be noted that the double-rod hydraulic cylinder 230 and the lifting hydraulic cylinder 325 involved in the present invention are all universal standard parts or components known to those skilled in the art. Their structures and principles are known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle space of this device, the double-rod hydraulic cylinder 230 and the lifting hydraulic cylinder 325 are connected to an external power supply. The specific connection method should refer to the working principle of the present invention. The electrical connection between each electrical component is completed in a sequential working order, and the detailed connection methods are all well-known technologies in this field.

[0088] When the dynamically adjustable tunnel trolley travel support system based on multi-hydraulic coordination of the present invention is used, first, according to the size of the tunnel to be constructed, the double-rod hydraulic cylinder 230 in the support device 200 is started, the telescopic rod at the bottom of the double-rod hydraulic cylinder 230 is controlled to move downward, and the double-rod hydraulic cylinder 230 is closed after the transverse traveling wheel 125 in the transverse moving part 120 is completely in contact with the ground;

[0089] Then, the lifting hydraulic cylinder 325 in the frame size adjustment device 320 in the top connection device 300 is activated, driving the movable plate 321 in the frame to move upward as a whole, thereby driving the position of the second connecting rod 323 to change, and then changing the relative position of the transverse connecting beam 324 inside the transverse docking beam 312. When the relative distance between the fixed bottom bins 100 at both ends is adapted to the size of the tunnel to be constructed, the lifting hydraulic cylinder 325 is closed, and the telescopic rod at the bottom of the double-rod hydraulic cylinder 230 is activated to move upward, and the cylinder is closed after the longitudinal walking wheels 130 are fully in contact with the ground.

[0090] When the tunnel trolley needs to install the external formwork, the telescopic rod on the top of the double-rod hydraulic cylinder 230 is controlled to move, driving the movable platform 221 to move inside the column slot 2110, thereby changing the relative position of the first connecting rod 222 and then changing the extension length of the transverse support rod 223. When the specified requirements are met, the double-rod hydraulic cylinder 230 can be closed.

[0091] Later, when the trolley needs to be fixed as a whole during pouring or maintenance construction, the telescopic rod at the bottom of the double-rod hydraulic cylinder 230 moves upward, thereby driving the top rod 124 in the transverse moving part 120 to move upward, and then changing the relative positions of the two flip plates 142 in the support part 140. When the bottom horizontal plate of the flip plate 142 is fully in contact with the ground, the double-rod hydraulic cylinder 230 is closed to ensure the stability of the bottom structure of the entire device.

[0092] The above shows and describes 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 above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A dynamically adjustable tunnel trolley travel support system based on multi-hydraulic coordination, comprising two sets of fixed bottom bins (100) arranged in parallel in front and back, characterized in that: The fixed bottom bin (100) comprises a bin shell (110), a transverse moving portion (120), longitudinal running wheels (130), and a supporting portion (140). A supporting device (200) is provided on the top of the bin shell (110). The tops of the two groups of supporting devices (200) are connected to the same group of top connecting devices (300). The inner side walls at both ends of the silo shell (110) are provided with the same number of silo inner slots (111) in corresponding positions, a silo top through slot (112) extending vertically is provided at the center of the top surface of the silo shell (110), a partition plate (113) is integrally formed between the front and rear inner side walls at the left and right ends of the silo shell (110), a rectangular through slot extending inside and outside for providing a rotation space for the support portion (140) is provided on the outer side walls at both ends of the silo shell (110), and longitudinal running wheels (130) for moving the entire device in the tunnel are fixedly connected to the left and right ends of the inner top surface of the silo shell (110) by bolts; The transverse moving part (120) includes a fixed plate (121), a plurality of plate body sliders (122) integrally formed on the outer side walls at the front and rear ends of the fixed plate (121), a reinforcing bracket (123) welded and fixed to the bottom surface of the fixed plate (121), a push rod (124) welded and fixed to the outer side walls at the left and right ends of the reinforcing bracket (123), and a transverse walking wheel (125) fixed to the bottom surface of the reinforcing bracket (123) by bolts, the plate body sliders (122) are the same in number as the chute (111) in the bin, the positions are one-to-one corresponding, and the sizes are adapted, and the top end of the push rod (124) is arc-shaped; The support device (200) comprises a longitudinal support column (210), a transverse support adjustment portion (220), a double-rod hydraulic cylinder (230) and a connecting transverse plate (240); the double-rod hydraulic cylinder (230) is arranged at the bottom of the middle longitudinal support column (210) and is respectively connected to the transverse moving portion (120) and the transverse support adjustment portion (220) via a telescopic rod; The transverse support adjustment portion (220) comprises a movable platform (221), a first connecting rod (222) and a transverse support rod (223); the first connecting rod (222) rotatably connects the movable platform (221) and the transverse support rod (223); and the double-rod hydraulic cylinder (230) drives the movable platform (221) to rise and fall to adjust the extension length of the transverse support rod (223); The double-rod hydraulic cylinder (230) is welded and fixed to a position near the middle of the top surface of the warehouse shell (110); the top telescopic rod of the double-rod hydraulic cylinder (230) is fixedly connected to the bottom surface of the movable platform (221) by bolts; the bottom telescopic rod of the double-rod hydraulic cylinder (230) passes through the top surface of the warehouse shell (110) and is fixedly connected to the top surface of the fixed plate (121) by bolts; the top surface of the connecting cross plate (240) and the bottom surfaces of the outer wall brackets of the movable platform (221) are all welded and fixed; The top connection device (300) includes a top fixed frame (310), a frame size adjustment device (320) and a connection portion (330). The frame size adjustment device (320) includes a frame inner movable plate (321), a second connecting rod (323), a transverse connecting beam (324) and an upward hydraulic cylinder (325). The upward hydraulic cylinder (325) drives the frame inner movable plate (321) to move up and down, thereby linking the transverse connecting beam (324) to move laterally via the second connecting rod (323). The top fixing frame (310) comprises a frame shell (311), a plurality of transverse butt joint beams (312) welded and fixed to the outer side walls at the front and rear ends of the frame shell (311), and an inclined support frame (313) welded and fixed between the outer side walls of the frame shell (311) and the top surfaces of the transverse butt joint beams (312). The outer side walls at the front and rear ends of the frame shell (311) are provided with a plurality of frame wall through grooves (3110) that penetrate inside and outside and are distributed linearly. The movable plate (321) in the frame is slidably connected to the inside of the frame shell (311); a plurality of linearly arranged connecting seats (322) are fixedly connected by bolts on the top surface of the movable plate (321) in the frame; the other end of the second connecting rod (323) is rotatably connected to the inside of the top surface bracket of the transverse connecting beam (324); the transverse connecting beam (324) is slidably connected to the inside of the transverse docking beam (312); the lifting hydraulic cylinder (325) is fixedly connected to the inner bottom surface of the frame shell (311) by bolts; the top end of the lifting hydraulic cylinder (325) is fixedly connected to the bottom surface of the movable plate (321) in the frame by bolts; a plurality of regularly distributed second pressure springs (326) are welded and fixed to the bottom surface of the movable plate (321) in the frame; the other end of the second pressure spring (326) is welded and fixed to the inner bottom surface of the frame shell (311).

2. The dynamically adjustable tunnel trolley travel support system based on multi-hydraulic coordination according to claim 1 is characterized by: The support portion (140) includes a rotating shaft (141) with two ends rotatably connected to the left and right end groove walls of the rectangular through groove of the silo shell (110), a flip plate (142) rotatably connected to the outer side wall of the rotating shaft (141) and bent, and a first pressure spring (143) welded and fixed to the top horizontal plate of the flip plate (142), wherein the top end of the first pressure spring (143) is welded and fixed to the inner top surface of the silo shell (110).

3. The dynamically adjustable tunnel trolley travel support system based on multi-hydraulic coordination according to claim 1 is characterized in that: The longitudinal support column (210) comprises a column shell (211) fixedly connected to the top surface of the bin shell (110) by bolts, a transverse fixing rod (212) welded to the outer wall of the column shell (211), and an annular placement plate (213) welded to the outer wall of the column shell (211) near the top. A column through groove (2110) extending from inside to outside is provided on the outer wall of the column shell (211) below the transverse fixing rod (212), and a rod bottom sliding groove with a T-shaped longitudinal cross section is provided on the bottom surface of the transverse fixing rod (212).

4. The dynamically adjustable tunnel trolley travel support system based on multi-hydraulic coordination according to claim 3 is characterized by: The movable platform (221) has a T-shaped transverse cross-section and is slidably connected to the interior of the column housing (211). The transverse support rod (223) is slidably connected to the interior of the bottom rod groove of the bottom surface of the transverse fixed rod (212). Two mounting brackets (224) are welded and fixed to the bottom surface of the transverse support rod (223). A docking plate (225) is welded and fixed to the end of the outer wall of the transverse support rod (223) away from the movable platform (221). The top circular axis of the first connecting rod (222) is rotatably connected to the interior of the two mounting brackets (224).

5. The dynamically adjustable tunnel trolley travel support system based on multi-hydraulic coordination according to claim 4 is characterized in that: The connecting portion (330) includes a plurality of linearly distributed square docking frames (331) and a plurality of connecting brackets (332) welded and fixed between two adjacent groups of square docking frames (331). The internal space of the square docking frames (331) is adapted to the external dimensions of the column housing (211), and the bottom cross-sectional dimensions of the square docking frames (331) are adapted to the cross-sectional dimensions of the annular placement plate (213).

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