Concrete distributing device of formwork trolley

Abstract

The utility model belongs to the technical field of tunnel construction equipment, and particularly relates to a concrete distributing device of a formwork trolley. The device comprises an injection pipeline and a feeding pipeline which are arranged at the front end and the rear end of the formwork trolley respectively, and further comprises a purging pipeline arranged in a power guide rail, the power guide rail is independent of a walking guide rail of the formwork trolley, a cleaning water pipe and an air pipe which are connected with a power pump respectively are laid along the power guide rail, and a plurality of butt-joint pipe openings are formed in pipe bodies of the cleaning water pipe and the air pipe. One end of the purging pipeline is provided with a cleaning opening corresponding to the pouring opening, the other end of the purging pipeline is provided with a connector corresponding to the butt-joint pipe opening, the connector and the butt-joint pipe opening are provided with a signal transmitter and a receiver respectively, the signal transmitter and the receiver are both electrically connected with the plc, and the plc is further electrically connected with a walking guide rail and a power guide rail of the formwork trolley; the material distributing device obviously improves the pouring lining efficiency of the formwork trolley, and has the characteristics of continuous pouring, synchronous cleaning, automatic butt joint and process linkage.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel construction equipment, and specifically relates to a concrete placing device of a template trolley, which automatically pours concrete as the template trolley travels in a tunnel. Background Art

[0002] The use of formwork trolleys can improve the surface finish and lining speed of tunnel lining and reduce labor intensity. When the formwork trolley is used for tunnel lining, the concrete delivery speed is an important factor affecting the construction progress. The feeding method relying on a single pipeline cannot be combined with the movement of the formwork trolley, the pipelines are chaotic, more manpower is occupied, and the pouring efficiency is low.

[0003] Some tunnels have installed improved concrete placing machines, which use transmission mechanisms to extend the feeding pipeline into the pouring position. However, since the same section of the tunnel contains multiple pouring ports, manual operation is still required to connect them one by one, and the degree of automation needs to be improved. Secondly, since the pouring pipeline needs to be flushed after the pouring is completed, the existing flushing pipeline and pouring pipeline are integrated on the trolley, so the pouring and cleaning must be carried out in sequence. The trolley cannot move forward during cleaning, and the pouring pipeline is idle, which significantly reduces the working efficiency of the template trolley. Utility Model Content

[0004] The utility model aims to provide a concrete placing device for a template trolley with high casting lining efficiency, which has the characteristics of continuous casting, synchronous cleaning, automatic docking and process linkage.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A concrete spreading device for a formwork trolley, comprising an injection pipeline and a feeding pipeline respectively arranged at the front and rear ends of the formwork trolley, wherein the end of the injection pipeline is provided with a discharge port corresponding to the casting port in the tunnel, and the end of the feeding pipeline is connected to a concrete feeding hose, characterized in that it also includes a flushing pipeline arranged in a power rail, the power rail is independent of the walking rail of the formwork trolley, a cleaning water pipe and an air pipe respectively connected to a power pump are laid along the power rail, and a plurality of docking pipe ports are arranged on the pipe bodies of the two. One end of the flushing pipeline is provided with a cleaning port corresponding to the casting port, and the other end is provided with a joint corresponding to the docking pipe port. The joint and the docking pipe port are respectively provided with a signal transmitter and a receiver, both of which are electrically connected to a PLC controller, and the PLC controller is also electrically connected to the walking rail and the power rail of the formwork trolley.

[0007] Additional technical features of the concrete placing device constituting the above-mentioned formwork trolley include:

[0008] ——The walking guide rail of the template trolley includes a gear driven by a hydraulic motor, the gear is meshed with a rack track, the output shaft of the hydraulic motor and the sensor shaft connected to the encoder are linked through a synchronous belt, and the encoder and the hydraulic motor are electrically connected to the PLC controller;

[0009] - A multi-link manipulator is installed in the slider of the power guide rail, and the end of the multi-link manipulator is fixed with the cleaning port of the purge pipeline, and the joint of the purge pipeline is placed at the bottom of the slider;

[0010] The injection pipeline is T-shaped, and its structure includes a main pipe and horizontal elbows symmetrically arranged on the left and right sides of its end, and the pipe body of the main pipe is connected to the vertical pipe;

[0011] ——The pipe openings of the vertical pipe, the pipe openings of the horizontal curved pipe and the joints of the purge pipeline are all telescopic injection heads, which include a central pipe and a movable pipe on the outside of the central pipe with a sealing sleeve. The discharge port is arranged at the end of the movable pipe, and the movable pipe is covered with a traction plate, which is connected to the cylinder piston rod.

[0012] Compared with the prior art, the concrete spreading device of the template trolley provided by the utility model has the following advantages: the concrete spreading device has a relatively independent blowing and washing pipeline, the walking guide rail of the template trolley pulls the concrete feeding hose, and connects with the pouring port in the tunnel in sequence through the discharge port, and the blowing and washing pipeline is pulled by the power guide rail to connect and clean the poured pipeline, thereby achieving the effect of continuous pouring and synchronous cleaning, and improving the working efficiency of the template trolley; secondly, the cleaning water pipe and air pipe connected to the power pump are laid along the power guide rail, and a plurality of connecting pipe ports are arranged on the pipe bodies of the two pipes, so that the blowing and washing A cleaning port corresponding to the pouring port is provided at one end of the pipeline, and a joint corresponding to the butt joint is provided at the other end thereof. The joint moves along the power guide rail and is sequentially butt jointed with the butt joints of the air pipe and the water pipe to realize the flushing of the pouring pipeline. A signal transmitter and a receiver are respectively provided on the joint and the butt joint, and both are electrically connected to the PLC controller. The PLC controller is also electrically connected to the walking guide rail and the power guide rail of the template trolley, realizing the automatic control of the stroke of the template trolley, and the automatic docking function of the discharge port and the pouring port, and the joint of the flushing pipeline and the butt joint of the water pipe and the air pipe. It has the advantages of compact structure, convenient operation, safety and applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a concrete placing device of a template trolley of the utility model;

[0014] Figure 2 This is a schematic diagram of the encoder synchronous belt structure connected to the hydraulic motor of the device. DETAILED DESCRIPTION

[0015] The structure and working principle of the concrete placing device of the template trolley provided by the utility model are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] In the description of the present invention, unless otherwise specified, the terms "front and back", "left and right", "up and down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0017] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set / provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0018] like Figure 1 As shown, the concrete placing device structure of the template trolley includes an injection pipeline 2 and a feeding pipeline 3 respectively arranged at the front and rear ends of the template trolley 1, wherein the end of the injection pipeline 2 is provided with a discharge port 20 corresponding to the pouring port in the tunnel, and the end of the feeding pipeline 3 is connected to a concrete feeding hose. It also includes a flushing pipeline 5 arranged in the power guide rail 4, and the power guide rail 4 is independent of the walking guide rail 11 of the template trolley 1. A cleaning water pipe 51 and an air pipe 52 respectively connected to the power pump are laid along the power guide rail 4. A plurality of connecting pipe ports 501 (on-off valves can be provided to achieve closure) are provided on the pipe bodies of the two. One end of the flushing pipeline 5 is provided with a cleaning port 53 corresponding to the pouring port, and the other end is provided with a connector 502 corresponding to the connecting pipe port 501. The connector 502 and the connecting pipe port 501 are respectively provided with a signal transmitter and a receiver, and both are electrically connected to the plc controller 6. The plc controller 6 is also electrically connected to the walking guide rail 11 and the power guide rail 4 of the template trolley 1.

[0019] Its working principle is as follows: a template trolley 1 assembly is laid in the tunnel, including a traveling crane, a walking guide rail 11 and a pump body, and an injection pipeline 2 and a feeding pipeline 3 are respectively installed at the front and rear ends of the template trolley 1. A discharge port 20 matching the pouring port in the tunnel is arranged at the end of the injection pipeline 2, and the feeding pipeline 3 is connected to the concrete feeding hose. The power mechanism (reduction motor, power cylinder or hydraulic motor) of the walking guide rail 11 is linked by the PLC controller 6 to make it move forward along the tunnel, and the discharge port 20 is connected with the pouring port in turn. At the same time, a flushing pipeline 5 arranged in a relatively independent power guide rail 4 is used to clean the pipeline that has completed pouring, so that the pouring process can be carried out continuously, and the cleaning pipelines are synchronously linked, thereby improving the working efficiency of the template trolley 1.

[0020] It should be noted that in order to improve the degree of automatic control of the device, the PLC controller 6 is used to carry out linkage adjustment of the trolley stroke. For example, the joint 502 of the purge pipeline 5 and the cleaning water pipe 51 and the air pipe 52 are respectively provided with a signal transmitter and a receiver (infrared docking method) to feedback the docking position signal in real time. The PLC controller 6 is electrically connected to the trolley travel guide rail 11 and the power guide rail 4 to control the stroke spacing and ensure automatic docking. The electrical connection also includes necessary sensors, solenoid valve groups, communication lines, power lines, etc. According to actual conditions, corresponding devices existing in the prior art can be used.

[0021] In the concrete placing device structure constituting the above-mentioned template trolley,

[0022] ——The travel guide rail 11 of the template trolley 1 includes a hydraulic motor 71 arranged in the trolley. The gear 72 driven by the hydraulic motor 71 meshes with the rack rail 73, so that the trolley moves along the tunnel. The meshing transmission mode of the gear 72 accurately controls the stroke, so that the discharge port 20 in the trolley and the pouring port in the tunnel are accurately connected;

[0023] like Figure 2 As shown, preferably, the output shaft 74 of the hydraulic motor 71 and the sensor shaft 77 of the encoder 75 are linked by a synchronous belt 76. When specifically installed, the encoder 75 is installed on the trolley through a bearing seat 79, and its sensor shaft 77 is connected to the transmission shaft 78 through a coupling. The transmission shaft 78 is installed in the bearing of the bearing seat 79. Finally, the end of the transmission shaft 78 is linked with the output shaft 74 of the hydraulic motor 71 through a synchronous belt 76, that is, the power output and the gear 72 are synchronized. The encoder 75 and the hydraulic motor 71 are electrically connected to the PLC controller 6, which further improves the automatic control effect of the PLC.

[0024] In one embodiment, in order to facilitate the connection between the cleaning pipeline and the pouring pipeline in the tunnel, a multi-link manipulator 54 is installed in the slider of the power guide rail 4, and the cleaning port 53 of the purge pipeline 5 is fixed at its end. The multi-link manipulator 54 realizes multi-angle docking through a mutually hinged structure (such as a rotating shaft sleeve connection), and can also realize automatic docking by driving the connecting rods to rotate relatively and the end cleaning port 53 to move through a motor or a cylinder. The connector 502 of the purge pipeline 5 is placed at the lower part of the slider and moves synchronously with the slider. The interior of the connector 502 is a Y-shaped channel, and its branch ports are respectively connected to the cleaning water pipe 51 and the air pipe 52;

[0025] In this embodiment, the power guide rail 4 is a ball screw, which is driven by a reduction motor. The reduction motor is electrically connected to the PLC controller 6, and its travel and start and stop are automatically controlled by the PLC.

[0026] ——Preferably, the injection pipeline 2 is T-shaped, and its structure includes a main pipe 21 and horizontal elbows 22 symmetrically arranged on the left and right sides of its ends. The pipe body of the main pipe 21 is connected to the vertical pipe 23, that is, the injection is a three-dimensional structure. The outlets 20 of the elbows 22 on both sides of the horizontal can be connected to the pouring ports on both sides of the tunnel at the same time, so that the lower part of the lining structure can be cast and formed on the left and right at the same time, and the vertical pipe 23 above finally completes the pouring of the top of the lining;

[0027] ——Furthermore, the pipe openings of the vertical pipe 23, the pipe openings of the horizontal curved pipe 22 and the joint 502 of the purge pipeline 5 are all telescopic injection heads 8, which include a central pipe 81 and a movable pipe 82 on the outside of the central pipe 81 and a sealing sleeve. The discharge port 20 is arranged at the end of the movable pipe 82. The movable pipe 82 is fitted with a traction plate 83. The traction plate 83 is connected to the piston rod of the cylinder 84. The cylinder 84 drives the movable pipe 82 to telescopically move relative to the central pipe 81 by pushing and pulling the traction plate 83, thereby ensuring that the pipe openings are tightly docked and the casting is safe and stable. The structure is simple and compact, the drive is sensitive, and it is also convenient for PLC automatic control. The joint 502 of the purge pipeline 5 can also be provided with a telescopic injection head 8 with the same structure as the above structure to achieve tight docking with the cleaning water pipe 51 and the air pipe 52.

[0028] The above-described implementation modes are only used to illustrate the technical solution of the utility model, and are not limiting conditions for the implementation of the utility model. Therefore, any other modifications or equivalent replacements of configuration dimensions and internal structures made to the technical solution of the utility model, as long as they do not depart from the spirit and scope of the technical solution of the utility model, should be included in the scope of the claims of the utility model.

Claims

1. A concrete placing device for a template trolley, comprising a material injection pipeline and a material feeding pipeline respectively arranged at the front and rear ends of the template trolley, wherein: The end of the injection pipeline is provided with a discharge port corresponding to the pouring port in the tunnel, and the end of the feeding pipeline is connected to the concrete feeding hose, which is characterized in that it also includes a flushing pipeline arranged in the power guide rail, and the power guide rail is independent of the walking guide rail of the template trolley. Cleaning water pipes and air pipes respectively connected to the power pump are laid along the power guide rail, and a number of docking pipe ports are arranged on the pipe bodies of the two. One end of the flushing pipeline is provided with a cleaning port corresponding to the pouring port, and the other end is provided with a joint corresponding to the docking pipe port. The joint and the docking pipe port are respectively provided with a signal transmitter and a receiver, which are both electrically connected to the PLC controller, and the PLC controller is also electrically connected to the walking guide rail and the power guide rail of the template trolley.

2. The concrete placing device of the formwork trolley according to claim 1, characterized in that: The travel guide rail of the template trolley includes a gear driven by a hydraulic motor, the gear is meshed with a rack track, the output shaft of the hydraulic motor and the sensor shaft connected to the encoder are linked through a synchronous belt, and the encoder and the hydraulic motor are both electrically connected to the PLC controller.

3. The concrete placing device of the formwork trolley according to claim 1, characterized in that: A multi-link manipulator is installed in the slider of the power guide rail, and the end of the multi-link manipulator is fixed with the cleaning port of the purge pipeline. The joint of the purge pipeline is placed at the lower part of the slider.

4. The concrete placing device of the formwork trolley according to claim 1, characterized in that: The injection pipeline is T-shaped, and its structure includes a main pipe and horizontal elbows symmetrically arranged on both sides of the end thereof. The pipe body of the main pipe is connected to the vertical pipe.

5. The concrete placing device of the formwork trolley according to claim 4, characterized in that: The pipe openings of the vertical pipe, the pipe openings of the horizontal curved pipe and the joints of the purge pipeline are all telescopic injection heads, which include a central pipe and a movable pipe on the outside of the central pipe with a sealing sleeve. The discharge port is arranged at the end of the movable pipe, and the movable pipe is sleeved with a traction plate, which is connected to the cylinder piston rod.

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