A tunnel lining fabric trolley
By introducing telescopic boom and rotating boom systems onto the tunnel lining trolley, the automated operation of the concrete placing equipment was achieved, solving the problems of increased costs and high error rates associated with manual operation in existing technologies, and improving the efficiency and accuracy of tunnel lining construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY ELEVENTH BUREAU GROUP FIFTH ENGINEERING CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-03
AI Technical Summary
The existing tunnel lining trolley's concrete placement system requires manual operation when changing the pouring window, which increases labor costs and operational difficulty, and also has a high error rate.
The system employs a telescopic boom system and a rotating boom system to achieve automatic telescopic and rotating of the concrete placing equipment. It can automatically inject concrete from different window positions on the secondary lining trolley. The system includes a combination design of telescopic boom system and rotating boom system, combined with the automated concrete placing of telescopic pipe and rotating pipe.
It has achieved fully automated material placement for tunnel lining trolleys, reducing labor costs, improving work efficiency, and effectively reducing the rate of operational errors.
Smart Images
Figure CN224452801U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of secondary lining construction technology, specifically relating to a tunnel secondary lining material placement trolley. Background Technology
[0002] In tunnel secondary lining concrete construction, a lining trolley is used as the formwork system, and concrete is then pumped into the formwork for pouring. The secondary lining trolley generally includes a gantry, bottom beam, hydraulic formwork rods, upper frame, top formwork, and side formwork; while the concrete placement system includes a concrete placing boom, pouring pipes, and pouring windows. When using traditional methods for secondary lining concrete construction, to achieve symmetrical horizontal and vertical layered pouring, multiple concrete inlet windows (concrete feed windows) are typically opened along the tunnel axis on the left and right sides of the trolley, and in upper, middle, and lower layers. Concrete is delivered from the pump outlet to each inlet window via detachable feed pipes, which require constant disassembly, thus increasing the workload.
[0003] In the prior art, there are sliding rail-type material placement mechanisms to realize window-by-window material placement on the secondary lining trolley. For example, a boom-type secondary lining trolley window-by-window material placement mechanism disclosed in Chinese Patent CN115126502A mainly includes a material placement tube, a flipping material placement head, and a cantilever positioned on the top of the secondary lining trolley. The material placement tube is supported by the cantilever and connects the feeding end and the flipping material placement head. The cantilever is inserted into a tube seat fixed on the top platform of the portal beam assembly. The tube seat supports the cantilever in a horizontal state. A drive mechanism that can drive the cantilever to move horizontally relative to the tube seat is provided between the tube seat and the cantilever. A hanger is provided at one end of the cantilever, and the material placement tube is fixed on the hanger. The end with the flipping material placement head is suspended. A distribution tube and an unfoldable folding tube assembly are provided on the hanger. The concrete material is connected to the folding tube assembly and then connected to the material placement tube after passing through the distribution tube. Although it can reduce the amount of disassembly work, it cannot automatically align the pipes when changing the pouring window. It is necessary to rely on manual operation of the concrete placing system to extend into the corresponding window. This operation not only increases labor costs, but also increases the difficulty of operation and the error rate. Utility Model Content
[0004] This utility model proposes to provide a tunnel secondary lining material laying trolley, which realizes fully automatic material laying for each window of the secondary lining trolley, which can not only reduce labor costs and improve work efficiency, but also effectively reduce the error rate.
[0005] Therefore, the technical solution adopted by this utility model is as follows: a tunnel secondary lining placing trolley, including a telescopic boom system with automatic telescopic function installed on the secondary lining trolley, one end of the telescopic boom system being connected to a pumping device, and the other end of the telescopic boom system being provided with a rotating boom system with automatic rotation function. The telescopic boom system is installed inside the secondary lining trolley through corresponding telescopic boom brackets. The telescopic boom system enables the placing device to inject concrete from different window positions at the front and rear of the secondary lining trolley, and the rotating boom system enables the placing device to inject concrete from different window positions at the left and right of the secondary lining trolley.
[0006] As a preferred embodiment of the above scheme, the telescopic boom system includes a telescopic boom mounted on a telescopic boom support, and a telescopic tube assembly is mounted on the telescopic boom via a telescopic tube support. The telescopic boom includes at least one telescopic boom unit, and the telescopic tube assembly includes the same number of telescopic tube units as the telescopic boom units. The telescopic length of each telescopic tube unit is greater than the telescopic length of the telescopic boom unit, and a telescopic tube support is provided between each telescopic tube unit and the telescopic boom unit.
[0007] Further preferably, each telescopic arm unit includes a telescopic upper arm and a telescopic lower arm that are slidably sleeved together, both of which are hollow tubes. A telescopic drive mechanism for extending and retracting the lower arm relative to the upper arm is provided within each telescopic upper arm and lower arm. The telescopic tube unit includes a telescopic upper tube and a telescopic lower tube that are slidably sleeved together, with a sealing structure fitted over one end of the lower tube to achieve a seal. Both the upper and lower tubes are fixed to the corresponding telescopic upper arm and lower arm via corresponding telescopic tube supports.
[0008] Further preferably, the rotating boom system includes at least one rotating unit, the rotating unit includes a rotating boom, the rotating boom is provided with a rotating straight pipe for concrete to pass through, the two ends of the rotating straight pipe are provided with rotating curved pipes connected to adjacent rotating units or telescopic boom systems, the rotating curved pipes at the ends are provided with grouting pipes extending into the window of the secondary lining trolley, and each rotating boom is provided with a rotating through hole for the rotating curved pipe to pass through at the position corresponding to the rotating curved pipe.
[0009] Further preferably, a seated pipe clamp is provided at the position of the rotating bend pipe corresponding to the next rotating unit within the rotating boom. The seated pipe clamp is used to connect two adjacent rotating bend pipes, and a rotary motor is provided between two adjacent rotating booms. A fixed rotating body is provided at the front end of the telescopic boom system, and the fixed rotating body is equipped with a seated pipe clamp for connecting the rotating bend pipe and the concrete output pipe in the telescopic boom system.
[0010] Further preferably, it also includes a main placing pipe that can be connected at one end to the concrete output end of the rotating boom system. The main placing pipe is arranged on the secondary lining trolley extending forward and backward and is used to place the concrete on the top of the secondary lining. A main placing pipe is provided on both the left and right sides of the secondary lining trolley. A material distribution pipe is provided on the main placing pipe corresponding to the top window through a material distribution component, and the material distribution component is used to place the concrete at the corresponding window.
[0011] Further preferably, the main fabric tube is composed of several short fabric tubes, and two short fabric tubes are connected by a material distribution assembly. The material distribution assembly includes a material distribution support block mounted on the secondary lining trolley. The material distribution tube and a short fabric tube are spaced apart on the front side of the material distribution support block. The rear side of the material distribution support block is provided with a sliding groove for left and right movement. A slider is slidably mounted in the sliding groove. A short fabric tube is mounted on the rear side of the slider. The material distribution support block is provided with a through-hole for fabric at the position corresponding to the position of the material distribution tube or the short fabric tube. The slider is provided with a through-hole at the position corresponding to the position of the short fabric tube.
[0012] In a further preferred embodiment, a sliding cylinder capable of pushing a slider to slide within a groove is provided on either the left or right side of the material distribution support block via a sliding bracket.
[0013] Further preferably, the front side of the material distribution support block is provided with a front material connector at the position corresponding to each material through hole, which is connected to the material distribution pipe or the front material short pipe. The rear side of the slider is provided with a rear material connector at the position corresponding to the connecting hole. The rear material connector is used to connect to the rear material short pipe.
[0014] The beneficial effects of this utility model are as follows: the telescopic boom system enables the concrete placement equipment to inject concrete from different window positions at the front and rear of the lining trolley, and the rotating boom system enables the concrete placement equipment to inject concrete from different window positions at the left and right of the lining trolley, thus realizing fully automatic concrete placement of the lining trolley. This not only reduces labor costs and improves work efficiency, but also effectively reduces the error rate. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the present invention.
[0016] Figure 2 This is a schematic diagram of the installation of the telescopic boom system and the rotating boom system in this utility model.
[0017] Figure 3 This is a schematic diagram of the telescopic boom system and the rotating boom system in this utility model.
[0018] Figure 4 This is a schematic diagram of the rotating boom system in this utility model.
[0019] Figure 5 This is a schematic diagram of the rotating hose connection in this utility model.
[0020] Figure 6 This is a schematic diagram of the material distribution component in this utility model.
[0021] Figure 7 This is a schematic diagram of the material distribution support block in this utility model.
[0022] Figure 8 This is a schematic diagram of the slider in this utility model.
[0023] Reference numerals: Pump truck-100, Secondary lining curing trolley-200, Telescopic boom system-300, Telescopic boom support-301, Telescopic boom-310, Telescopic boom-311, Telescopic forearm-312, Telescopic pipe assembly-330, Telescopic main pipe-331, Telescopic small pipe-332, Rotating boom system-400, Rotating unit-410, Rotating boom-411, Rotating straight pipe-412, Rotating bend-413, Grouting Pipe-414, Fixed Rotary Body-415, Pipe Clamp with Seat-416, Rotary Motor-418, Second Lining Trolley-500, Material Distribution Assembly-600, Material Distribution Pipe-610, Main Fabric Distribution Pipe-620, Material Distribution Support Block-630, Fabric Through Hole-631, Front Fabric Joint-632, Slide Groove-633, Slider-640, Connecting Hole-641, Rear Fabric Joint-642, Sliding Bracket-650, Sliding Cylinder-660. Detailed Implementation
[0024] The present invention will be further described below with reference to embodiments and accompanying drawings:
[0025] like Figure 1-8 As shown, a tunnel secondary lining concrete placing trolley mainly consists of a telescopic boom system 300 and a rotating boom system 400. The telescopic boom system 300 is installed inside the secondary lining trolley 500 via corresponding telescopic boom supports 301. One end of the telescopic boom system 300 is connected to the pumping equipment, and the telescopic boom system 300 has an automatic telescopic function, enabling the concrete placing equipment to inject concrete from different window positions on the front and rear of the secondary lining trolley 500.
[0026] At the other end of the telescopic boom system 300, a rotating boom system 400 with automatic rotation function is provided. The rotating boom system 400 enables the concrete placing equipment to inject concrete from different window positions on the left and right sides of the secondary lining trolley 500. In this embodiment, one end of the telescopic boom system 300 is connected to the pump truck 100 located behind the secondary lining curing trolley 200. The pump truck adopts a structure with a folding boom, which allows it to pass through the secondary lining curing trolley and connect to the telescopic boom system located inside the secondary lining trolley.
[0027] The telescopic boom system 300 specifically includes a telescopic boom 310 mounted on a telescopic boom support 301. A telescopic pipe assembly 330 is mounted on the telescopic boom 310 via a telescopic pipe support. The telescopic pipe assembly is used for transporting concrete, and the telescopic boom supports and extends the telescopic pipe assembly. The telescopic boom 310 includes at least one telescopic boom unit. Correspondingly, the telescopic pipe assembly 330 includes the same number of telescopic pipe units as the telescopic boom units. The extension length of each telescopic pipe unit is greater than the extension length of the telescopic boom unit, and a telescopic pipe support is provided between each telescopic pipe unit and the telescopic boom unit. Preferably, the extension length of each telescopic pipe unit is 150mm-300mm longer than the extension length of the telescopic boom unit, and most preferably, 200mm.
[0028] Specifically, each telescopic boom unit includes a telescopic upper boom 311 and a telescopic lower boom 312 that are slidably sleeved together. Both the telescopic upper boom 311 and the telescopic lower boom 312 are hollow tubes. A telescopic drive mechanism for realizing the telescopic extension and retraction of the telescopic lower boom 312 relative to the telescopic upper boom 311 is provided inside the telescopic upper boom 311 and the telescopic lower boom 312. The telescopic drive mechanism is existing technology and will not be described in detail here.
[0029] The telescopic tube unit includes a large telescopic tube 331 and a small telescopic tube 332 that slide together internally and externally. The small telescopic tube 332 has a sealing structure fitted over one end of the large telescopic tube 331 to achieve a seal. Both the large telescopic tube 331 and the small telescopic tube 332 are fixed to the corresponding large telescopic arm 311 and small telescopic arm 312 via corresponding telescopic tube supports, allowing the large or small telescopic tube to move together when the telescopic arm extends or retracts. The sealing structure uses a concrete seal, a common technique in the prior art.
[0030] The rotating boom system 400 specifically includes at least one rotating unit 410. The combination of multiple rotating units minimizes the overall space required, facilitating the passage of other equipment within the access channel. Each rotating unit 410 includes a rotating boom 411. A rotating straight pipe 412 for concrete passage is installed within the rotating boom 411. Rotating curved pipes 413, connecting to adjacent rotating units 410 or the telescopic boom system 300, are installed at both ends of the rotating straight pipe 412. A grouting pipe 414 extending into the window of the secondary lining trolley 500 is installed on the rotating curved pipe 413 at the final end of the rotating boom 411. Rotating through holes are provided at the corresponding positions of the rotating curved pipes 413 on each rotating boom 411, allowing the rotating units to be connected via the rotating curved pipes.
[0031] To achieve automatic rotation of the rotating boom system, a pipe clamp 416 with a seat is provided inside the rotating boom 411 at the position of the rotating bend 413 that connects to the next rotating unit 410. The pipe clamp 416 with a seat is used to connect two adjacent rotating bends 413. A rotary motor 418 is provided between two adjacent rotating booms 411. To connect the rotating boom system 400 and the telescopic boom system 300, a fixed rotating body 415 is provided at the front end of the telescopic boom system 300. At the same time, a pipe clamp 416 with a seat is provided inside the fixed rotating body 415 to connect the rotating bend 413 and the concrete output pipe in the telescopic boom system 300. Correspondingly, a rotary motor 418 is also provided between the fixed rotating body 415 and the rotating boom 411 of the first rotating unit.
[0032] When the rotary motor rotates, it drives the rotating arm in the next rotating unit to rotate through the rotating body, thereby realizing the mutual rotation of two adjacent rotating units. Through the rotation of multiple rotating units, the grouting pipe can automatically move to each window of the secondary lining trolley to realize grouting and material placement.
[0033] To ensure the placement of grout at the top window of the secondary lining trolley, a grouting main pipe 620 is provided, one end of which can be connected to the concrete output end of the rotating boom system 400. That is, the grouting main pipe is connected to the grouting pipe. The grouting main pipe 620 is set on the top of the secondary lining trolley 500 to realize the placement of grout at the top of the secondary lining. At the same time, a grouting main pipe 620 is set on both the left and right sides of the secondary lining trolley 500. In order to realize the placement of grout at each window at the top, a distribution pipe 610 is set on the grouting main pipe 620 corresponding to the top window through the distribution component 600. The distribution component 600 realizes the placement of grout at the corresponding window.
[0034] The main concrete placement pipe 620 consists of several short concrete placement pipes, and two short concrete placement pipes are connected by a distribution pipe 610 through a distribution assembly, forming a "U" shape between each distribution assembly. The distribution assembly 600 specifically includes a distribution support block 630 mounted on the secondary lining trolley 500. The distribution pipe 610 and a short concrete placement pipe are spaced apart on the front side of the distribution support block 630. A left-right movable slide groove 633 is provided on the rear side of the distribution support block 630, and a slider 640 is slidably mounted within the slide groove 633. A short concrete placement pipe is mounted on the rear side of the slider 640. The left-right sliding of the slider within the slide groove enables communication between adjacent short concrete placement pipes, or between a short concrete placement pipe and a distribution pipe, thereby allowing concrete to be transported within the main concrete placement pipe or the distribution pipe, achieving sequential concrete placement at each window on the top of the secondary lining trolley.
[0035] To enable automatic switching of the material distribution components, a sliding cylinder 660 is installed on either the left or right side of the material distribution support block 630 via a sliding bracket 650, capable of pushing the slider 640 to slide within the groove. To facilitate the connection between the material distribution tube or the distribution pipe and the material distribution support block, a front material distribution connector 632 is provided on the front side of the material distribution support block 630 at the position corresponding to each material distribution through hole 631, connecting to the distribution pipe or the front material distribution tube. To facilitate the connection between the material distribution tube and the slider, a rear material distribution connector 642 is provided on the rear side of the slider 640 at the position corresponding to the connecting hole 641, the rear material distribution connector 642 being used to connect to the rear material distribution tube. To facilitate the slider driving the rear material distribution tube to move, the material distribution tube includes a straight material distribution tube and a flexible material distribution tube, and the flexible material distribution tube is connected to the slider 640.
Claims
1. A tunnel secondary lining fabric trolley, characterized in that: The system includes a telescopic boom system (300) with automatic telescopic function, which is installed on the secondary lining trolley. One end of the telescopic boom system (300) is connected to the pumping equipment, and the other end of the telescopic boom system (300) is provided with a rotating boom system (400) with automatic rotation function. The telescopic boom system (300) is installed in the secondary lining trolley (500) through a corresponding telescopic boom bracket (301). The telescopic boom system (300) enables the concrete placing equipment to inject concrete from different window positions at the front and rear of the secondary lining trolley (500), and the rotating boom system (400) enables the concrete placing equipment to inject concrete from different window positions at the left and right of the secondary lining trolley (500).
2. The tunnel secondary lining placing trolley according to claim 1, characterized in that: The telescopic boom system (300) includes a telescopic boom (310) mounted on a telescopic boom support (301). A telescopic tube assembly (330) is mounted on the telescopic boom (310) via a telescopic tube support. The telescopic boom (310) includes at least one telescopic boom unit. The telescopic tube assembly (330) includes the same number of telescopic tube units as the telescopic boom units. The telescopic length of each telescopic tube unit is greater than the telescopic length of the telescopic boom unit, and a telescopic tube support is provided between each telescopic tube unit and the telescopic boom unit.
3. The tunnel secondary lining placing trolley according to claim 2, characterized in that: Each telescopic arm unit includes a telescopic upper arm (311) and a telescopic lower arm (312) that are slidably sleeved together. Both the telescopic upper arm (311) and the telescopic lower arm (312) are hollow tubes. The telescopic upper arm (311) and the telescopic lower arm (312) are provided with a telescopic drive mechanism for realizing the telescopic extension and retraction of the telescopic lower arm (312) relative to the telescopic upper arm (311). The telescopic tube unit includes a telescopic upper tube (331) and a telescopic lower tube (332) that are slidably sleeved together. The end of the telescopic lower tube (332) located on the telescopic upper tube (331) is provided with a sealing structure for achieving a seal. The telescopic upper tube (331) and the telescopic lower tube (332) are fixed on the corresponding telescopic upper arm (311) and the telescopic lower arm (312) by corresponding telescopic tube brackets.
4. The tunnel secondary lining placing trolley according to claim 1, characterized in that: The rotating boom system (400) includes at least one rotating unit (410), the rotating unit (410) includes a rotating boom (411), the rotating boom (411) is provided with a rotating straight pipe (412) for concrete to pass through, the two ends of the rotating straight pipe (412) are provided with rotating curved pipes (413) connected to the adjacent rotating unit (410) or the telescopic boom system (300), the rotating curved pipe (413) at the end is provided with a grouting pipe (414) extending into the window of the secondary lining trolley (500), and each rotating boom (411) is provided with a rotating through hole for the rotating curved pipe (413) to pass through at the position corresponding to the rotating curved pipe (413).
5. The tunnel secondary lining placing trolley according to claim 4, characterized in that: A seated pipe clamp (416) is provided at the position of the rotating bend (413) connected to the next rotating unit (410) inside the rotating boom (411). The seated pipe clamp (416) is used to connect two adjacent rotating bends (413). A rotary motor (418) is provided between two adjacent rotating booms (411). A fixed rotating body (415) is provided at the front end of the telescopic boom system (300). The fixed rotating body (415) is equipped with a seated pipe clamp (416) for connecting the rotating bend (413) and the concrete output pipe in the telescopic boom system (300).
6. The tunnel secondary lining placing trolley according to claim 1, characterized in that: It also includes a concrete placement pipe (620) that can be connected at one end to the concrete output end of the rotating boom system (400). The concrete placement pipe (620) is arranged on the secondary lining trolley (500) extending back and forth and is used to realize the top placement of the secondary lining. A concrete placement pipe (620) is provided on both the left and right sides of the secondary lining trolley (500). A distribution pipe (610) is provided on the top window of the concrete placement pipe (620) through the distribution component (600) to realize the placement of the corresponding window.
7. The tunnel secondary lining placing trolley according to claim 6, characterized in that: The main fabric tube (620) is composed of several short fabric tubes, and two short fabric tubes are connected by a distribution tube (610) through a distribution component. The distribution component (600) includes a distribution support block (630) set on the secondary lining trolley (500). The distribution tube (610) and a short fabric tube are spaced apart on the front side of the distribution support block (630). The rear side of the distribution support block (630) is provided with a sliding groove (633) that moves left and right. A slider (640) is slidably arranged in the sliding groove (633). A short fabric tube is arranged on the rear side of the slider (640). A fabric through hole (631) is provided on the distribution support block (630) corresponding to the position of the distribution tube (610) or the short fabric tube. A connecting hole (641) is provided on the slider (640) corresponding to the position of the short fabric tube.
8. The tunnel secondary lining placing trolley according to claim 7, characterized in that: On either the left or right side of the material distribution support block (630), a sliding cylinder (660) is provided via a sliding bracket (650) to push the slider (640) to slide in the groove.
9. The tunnel secondary lining placing trolley according to claim 7, characterized in that: The front side of the material distribution support block (630) is provided with a front material connector (632) corresponding to the position of each material through hole (631) and connected to the material distribution pipe or the front material short pipe. The rear side of the slider (640) is provided with a rear material connector (642) corresponding to the position of the connecting hole (641). The rear material connector (642) is used to connect to the rear material short pipe.