Telescopic rotary compound arm

Abstract

The utility model belongs to tunnel concrete conveying equipment technical field, concretely relates to a telescopic rotary composite arm, including one end with pumping equipment connection and having automatic telescopic function's telescopic arm frame system, the other end of telescopic arm frame system is provided with the rotary arm frame system with automatic rotation function, be equipped with telescopic arm support for the whole device installation on telescopic arm frame system, the end of rotary arm frame system is provided with the grouting pipe that can extend into the corresponding window. Through telescopic arm frame system can realize the front and back movement of grouting pipe, through rotary arm frame system realizes the left and right swing of grouting pipe, makes grouting pipe can automatically extend into the corresponding grouting window, realizes the automatic distribution of each window in tunnel, thereby reduces manpower cost and operation failure rate.

Description

Technical Field

[0001] This utility model belongs to the technical field of concrete conveying equipment in tunnels, and specifically relates to a telescopic and rotating composite arm. Background Technology

[0002] In the construction of railway and highway tunnels, it is necessary to use conveying devices to transport concrete from the rear of the construction site to the construction face. However, in tunnel construction, during concrete pouring, it is necessary to pour along multiple windows located at intervals on both sides of the construction face. To meet the pouring requirements, a sliding rail telescopic concrete placing boom is currently commonly used.

[0003] For example, Chinese patent CN115126502A discloses a boom-type secondary lining trolley window-by-window concrete placement mechanism, which mainly includes a concrete placement pipe, a tilting concrete placement head, and a cantilever positioned on the top of the secondary lining trolley. The concrete placement pipe is supported by the cantilever and connects the feed end and the tilting concrete placement head. The cantilever passes through a pipe seat fixed on the top platform of the portal beam assembly, and the pipe seat supports the cantilever in a horizontal state. A drive mechanism is provided between the pipe seat and the cantilever to drive the cantilever to move horizontally relative to the pipe seat. A hanger is provided at one end of the cantilever, and the concrete placement pipe is fixed on the hanger, with the end with the tilting concrete placement head suspended in the air. A distribution pipe and an unfoldable folding pipe assembly are provided on the hanger. Concrete material is received through the folding pipe assembly and then connected to the concrete placement pipe after passing through the distribution pipe. Although this reduces the amount of disassembly work, it cannot automatically align the pipe when changing the pouring window. It must rely on manual operation to extend the concrete placement system 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 telescopic rotary composite arm that can realize automatic material placement for each window in a tunnel.

[0005] Therefore, the technical solution adopted by this utility model is as follows: a telescopic and rotating composite boom, including a telescopic boom system with one end connected to a pumping device and having an automatic telescopic function, a rotating boom system with an automatic rotation function at the other end of the telescopic boom system, a telescopic boom bracket for installing the entire device on the telescopic boom system, and a grouting pipe that can extend into the corresponding window at the end of the rotating boom system.

[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 grouting pipe is connected to the rotating curved pipe at the end, 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] The beneficial effects of this utility model are as follows: the telescopic boom system enables the grouting pipe to move back and forth, and the rotating boom system enables the grouting pipe to swing left and right, so that the grouting pipe can automatically extend into the corresponding grouting window, realizing automatic grouting of each window in the tunnel, thereby reducing labor costs and operational error rate. Attached Figure Description

[0011] Fig. 1 This is a schematic diagram of the present invention.

[0012] Fig. 2 This is a schematic diagram of the rotating boom system in this utility model.

[0013] Fig. 3 This is a schematic diagram of the rotating hose connection in this utility model.

[0014] Reference numerals: Telescopic boom system-300, Telescopic boom bracket-301, Telescopic boom-310, Telescopic boom-311, Telescopic forearm-312, Telescopic pipe assembly-330, Telescopic main pipe-331, Telescopic small pipe-332, Rotary boom system-400, Rotary unit-410, Rotary boom-411, Rotary straight pipe-412, Rotary curved pipe-413, Grouting pipe-414, Fixed rotating body-415, Pipe clamp with seat-416, Rotary motor-418. Detailed Implementation

[0015] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0016] like Figs. 1-3 As shown, a telescopic and rotating composite boom mainly consists of a telescopic boom system 300, a rotating boom system 400, and a grouting pipe. One end of the telescopic boom system 300 is connected to a pumping device, which can be a tracked pump truck 100. The rotating boom system 400 is located at the other end of the telescopic boom system 300, and a grouting pipe 414 extending into a corresponding window is located at the end of the rotating boom system 400. The telescopic boom system 300 has an automatic telescopic function, allowing concrete injection from different window positions (front and rear). The rotating boom system 400 has an automatic rotation function, allowing concrete injection from different window positions (left and right).

[0017] To facilitate the installation of the entire composite boom, a telescopic boom support 301 is provided on the telescopic boom system 300. The specific structure of the telescopic boom system 300 includes a telescopic boom 310 mounted on the telescopic boom support 301, and a telescopic pipe assembly 330 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, most preferably 200mm.

[0018] Specifically, each telescopic boom unit includes a telescopic boom 311 and a telescopic arm 312 that are slidably sleeved together. Both the telescopic boom 311 and the telescopic arm 312 are hollow tubes. A telescopic drive mechanism for realizing the telescopic arm 312 telescopically extending and retracting relative to the telescopic boom 311 is provided inside the telescopic boom 311 and the telescopic arm 312. The telescopic drive mechanism is existing technology and will not be described in detail here.

[0019] 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.

[0020] 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 is connected to the last rotating curved pipe 413. A rotating through-hole is provided at each position of the rotating boom 411 corresponding to the rotating curved pipe 413, allowing the rotating units to be connected via the rotating curved pipes.

[0021] 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.

[0022] 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.

Claims

1. A telescopic rotary composite arm, characterized in that: The device includes a telescopic boom system (300) connected to a pumping device at one end and having an automatic telescopic function, and a rotating boom system (400) with an automatic rotation function at the other end of the telescopic boom system (300). The telescopic boom system (300) is equipped with a telescopic boom bracket (301) for the installation of the entire device, and the rotating boom system (400) has a grouting pipe (414) that can extend into the corresponding window at the end. 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 telescopic boom system (300), the grouting pipe (414) is connected to the rotating curved pipe (413) at the end, 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).

2. The telescopic rotary composite arm 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 telescopic rotary composite arm 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. Both 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 telescopic rotary composite arm according to claim 1, 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).

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