A longitudinally moving pump pipe mechanism, material distribution system and material distribution method

Abstract

The present invention provides a longitudinally movable pump pipe mechanism, including a support frame, a traveling assembly and a pump pipe group. The traveling assembly in the pump pipe group of the present invention drives the entire longitudinally movable pump pipe mechanism to move, and can realize the rapid docking of the longitudinally movable pump pipe mechanism with multiple other casting pipelines or casting ports. The modular design of the longitudinally movable pump pipe mechanism can effectively replace the local pipeline structure in the traditional casting pipeline, greatly reducing the number of pipelines, which can not only reduce the difficulty of pipe laying and pipeline installation, but also reduce the workload during design and pipeline installation, save costs, and improve production efficiency. The present invention also discloses a material distribution system, including the above-mentioned longitudinally movable pump pipe mechanism. The present invention also discloses a material distribution method, which adopts the modular design of the longitudinally movable pump pipe mechanism to replace some existing complex pipelines, which can not only save the cost of pipeline design and installation, but also increase the construction space and realize rapid docking to improve construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to a longitudinally movable pump pipe mechanism, a material laying system comprising the longitudinally movable pump pipe mechanism, and a material laying method. Background Art

[0002] At present, tunnel construction has evolved from pouring concrete by overlapping wooden formwork to pouring concrete using an automatic pouring trolley (hereinafter referred to as the trolley). The automatic pouring trolley also uses a pumping method to pour concrete. The concrete is pumped to the top of the trolley by a distribution trolley, and the distribution trolley moves longitudinally to connect the distribution pipeline to pour the pumped concrete to the top or bottom of the trolley.

[0003] The concrete placing system on the pouring trolley uses a large number of pipes for pouring concrete. Almost every pouring port has a separate set of pipes (from the pouring port to the concrete placing machine interface) for control. Taking a 12m trolley as an example, 8 to 16 sets of pipes are generally used.

[0004] The existing material distribution system has the following defects: ① Except for the material feeding at the top of the top mold, the rest of the material feeding is mostly through the working window. Compared with the material feeding method of the pouring port, the material feeding through the working window requires opening the working window first and then connecting a section of the material feeding pipe. This not only increases the labor intensity of the workers and reduces work efficiency, but also increases the maintenance cost of the pipeline, which is not conducive to the automation and mechanization of the trolley casting; ② A large number of pipelines not only increase the weight and cost of the trolley, but also put forward high requirements for the maintenance and cleaning of the pipeline, and even easily cause pipe blockage and other phenomena; ③ The application of a large number of pipelines will also produce a large number of joints, and it takes a lot of time to connect the joints, which seriously affects the pouring efficiency during concrete pouring. Summary of the invention

[0005] The present invention aims to provide a longitudinally moving pump pipe mechanism, comprising a support frame, a walking assembly and a pump pipe group;

[0006] The support frame includes a first frame body and a second frame body connected to each other;

[0007] The pump tube set includes at least one pump tube, the first end of the pump tube is arranged on the first frame, and the first end is provided with a first pump tube interface; the second end of the pump tube is arranged on the second frame, and the second end is provided with a second pump tube interface;

[0008] The walking assembly is arranged on the supporting frame and is used for driving the entire longitudinal pump pipe mechanism to move.

[0009] The longitudinal displacement pump pipe mechanism of the present invention comprises three major parts, a support frame, a walking assembly and a pump pipe group, and has a simple structure; the two ends of the pump pipe are respectively connected to other pipelines through a first pump pipe interface and a second pump pipe interface to achieve quick docking; the walking assembly drives the entire longitudinal displacement pump pipe mechanism to move, and the modular design of the longitudinal displacement pump pipe mechanism can effectively replace part of the pipeline structure in the traditional material distribution system, greatly reducing the pipelines (specifically: the pipeline of the top mold can be directly omitted, the longitudinal displacement pump pipe mechanism can be directly connected to the casting port for material distribution, and the side mold only needs to arrange the chute system), and the effects are: ① It can reduce the workload during design and pipeline installation, reduce the difficulty of pipe laying and pipeline installation, improve production efficiency, and save costs; ② It can increase the utilization rate of the effective space on the upper part of the trolley, which is convenient for operators to pass through and store auxiliary components.

[0010] Optionally, in the present invention, flexible docking is adopted between the first pump tube interface and the docking piece A and / or between the second pump tube interface and the docking piece B.

[0011] Optionally, the second end of the pump tube is movably disposed on the second frame to adjust the distance between the first end and the second end of the pump tube. By adopting an adjustable design of the distance between the first end and the second end of the pump tube, the second end of the pump tube can be extended or retracted as needed, meeting the dual needs of docking (quick docking after extension) and movement (interference between components can be prevented after retraction). It is further preferred that the second frame includes a fixed section and a movable section, the first end of the fixed section is disposed on the first frame, and the movable section is movably disposed on the second end of the fixed section through a telescopic member; the second end of the pump tube and / or the second pump tube interface are disposed on the movable section. The structure is simple, and the extension and retraction of the second end of the pump tube are smooth, which is convenient for docking and movement, and is conducive to improving construction efficiency.

[0012] Optionally, the second end of the pump tube and / or the second pump tube interface is movably arranged on the movable section through a clamp. Preferably, the second end of the pump tube and / or the second pump tube interface can be swung and adjusted in a vertical plane to achieve fine adjustment of the second pump tube interface during docking, thereby meeting alignment requirements.

[0013] Optionally, in the present invention, the travel assembly includes a driving member and a travel wheel group connected to the driving member, and the driving member is arranged on a support frame, and the driving member provides power for the movement of the travel wheel group.

[0014] Optionally, the walking wheel group includes an A-group walking wheel and a B-group walking wheel, wherein the A-group walking wheel is arranged on the first frame and the rotation axis of the A-group walking wheel is arranged in the vertical direction; the B-group walking wheel is arranged on the second frame and the rotation axis of the B-group walking wheel is arranged in the horizontal direction. Optionally, a rack is arranged on the track matching the B-group walking wheel, and the tooth surface of the rack is arranged downward; the driving member is arranged on the second frame, and the driving member is provided with a gear matching the rack.

[0015] The present invention discloses a material distribution system, including a docking piece B (such as a pouring pipeline or a pouring port) and the above-mentioned longitudinal displacement pump pipe mechanism; the docking piece B includes at least two sets of docking pieces arranged along the length direction of the tunnel; the walking assembly in the longitudinal displacement pump pipe mechanism matches the track arranged on the gantry of the trolley; the second end of the pump pipe in the longitudinal displacement pump pipe mechanism is connected to the docking piece through a second pump pipe interface. Due to the application of the longitudinal displacement pump pipe mechanism, the material distribution system can greatly simplify the design and installation of the pipeline and improve the construction efficiency.

[0016] Optionally, the present invention further includes a material placing machine, the longitudinal pump pipe mechanism is located between the material placing machine and the docking piece B, the first pump pipe interface is connected to the docking piece B; the docking piece B is a pouring port or a pouring pipe.

[0017] The present invention also discloses a method for distributing materials, comprising the following steps:

[0018] Assemble a trolley with a track on the gantry and the above-mentioned material distribution system; set the support frame in the longitudinal pump pipe mechanism on the gantry of the trolley and set the travel component in the longitudinal pump pipe mechanism corresponding to the track;

[0019] Fabric construction, including:

[0020] Step ①, the walking assembly drives the longitudinal pump pipe mechanism to move to the construction station on the track;

[0021] Step ②, the second end of the pump tube is extended to the corresponding position so that the second pump tube interface is well connected with the docking piece (connected), and the material is laid;

[0022] Step ③, after the material is laid, the second pump pipe interface is separated from the docking unit, and the second end of the pump pipe and the second pump pipe interface are retracted;

[0023] Step ④: If pouring is completed, the construction is ended; otherwise, the walking assembly drives the longitudinal pump pipe mechanism to move to the next construction station and returns to step ②.

[0024] The application of the material laying method of the present invention has the following effects: the number of pipelines can be greatly reduced and costs can be saved in the pipeline design and pipeline laying stages; and the pipeline docking efficiency can be improved and the construction efficiency can be improved in the pipeline assembly and material laying stages.

[0025] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 It is a structural schematic diagram of the longitudinal displacement pump pipe mechanism in the preferred embodiment of the present invention;

[0028] Figure 2 yes Figure 1 A side view of (illustrating the truss pieces);

[0029] Figure 3 yes Figure 2 Right view of;

[0030] Wherein: 1. support frame, 1.1. first frame body, 1.2. second frame body, 1.21. fixed section, 1.22. movable section, 1.23. telescopic member, 1.3. clamping member; 2. walking assembly, 2.1. driving member, 2.2. walking wheel group, 2.21. group A walking wheels, 2.22. group B walking wheels; 3. pump pipe group, 3.1. pump pipe, 3.2. first pump pipe interface, 3.3. second pump pipe interface; 4. truss piece; 5. upper track; 6. lower track; 7. rack. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0032] Example:

[0033] A longitudinal pump pipe mechanism comprises a support frame 1, a walking assembly 2 and a pump pipe group 3. Figure 1-Figure 3 , details are as follows;

[0034] The support frame 1 comprises a first frame body 1.1 and a second frame body 1.2 connected to each other. Preferably, the first frame body 1.1 and the second frame body 1.2 are designed in an L-shaped structure. The first frame body 1.1 and the second frame body 1.2 are both arranged on a truss sheet 4 on the portal frame.

[0035] The pump tube set 3 includes at least one pump tube 3.1 ( Figure 1-2One is illustrated, which can be configured as a Y-shaped tube according to actual needs, etc.), the first end of the pump tube 3.1 is arranged on the first frame 1.1, and the first end is provided with a first pump tube interface 3.2 (preferably the first pump tube interface is arranged at the end); the second end of the pump tube 3.1 is movably arranged on the second frame 1.2 to adjust the distance between the first end and the second end of the pump tube, and the second end is provided with a second pump tube interface 3.3 (preferably the second pump tube interface is arranged at the end).

[0036] Preferably, flexible docking is adopted between the first pump pipe interface and the docking piece A (here, the conveying pipe on the concrete placing machine or the connecting pipe connected to the concrete placing machine) and / or between the second pump pipe interface and the docking piece B (here, the pouring port or the pouring pipe); preferably, both the first pump pipe interface 3.2 and the second pump pipe interface 3.3 adopt U-shaped rubber joints, which have two effects: on the one hand, the flexible docking can prevent the pouring port reserved for the template from being damaged due to operating errors; on the other hand, the rubber joint also acts as a sealing gasket to ensure the pressure in the pouring pipe and prevent air leakage and pressure relief, so as to realize the pressure-maintaining feeding of the longitudinally shifted pump pipe mechanism, which can not only improve the pouring efficiency, but also expand the choice of the installation position of the concrete placing machine, and is highly practical.

[0037] It is preferred here that: the pump tube and the first pump tube interface and / or the pump tube and the second pump tube interface are connected by a pipe clamp. Generally speaking, the top mold casting generally adopts a straight pipe to connect the casting port reserved on the top mold, while the side mold casting needs to be replaced with a 45° joint casting. The connection method using a pipe clamp can ensure the convenience of interchange between straight pipe joints and elbow joints on the one hand, and on the other hand, it can improve the convenience of replacing parts (such as the first pump tube interface, the second pump tube interface or the pump tube).

[0038] The walking assembly 2 is arranged on the support frame, and is used to drive the entire longitudinal pump pipe mechanism to move. Preferably here: the walking assembly 2 includes a driving member 2.1 and a walking wheel group 2.2 connected to the driving member 2.1, and the driving member is arranged on the second frame 1.2 in the support frame (preferably below), and the driving member provides power for the movement of the walking wheel group. Further preferably: the walking wheel group includes a group A walking wheel 2.21 and a group B walking wheel 2.22, the group A walking wheels are arranged on the first frame and the rotating shaft of the group A walking wheels is arranged in the vertical direction; the group B walking wheels are arranged on the second frame and the rotating shaft of the group B walking wheels is arranged in the horizontal direction. The trolley docked with the longitudinal pump pipe mechanism is provided with an upper track 5 and a lower track 6, see Figure 2-Figure 3The upper track matches the A group running wheel 2.21, and the lower track matches the B group running wheel 2.22. The upper track adopts channel steel to fix the running wheel mechanism, and the lower track adopts channel steel but deflected 90° to fix the running wheel mechanism, and the inner side is welded with square tube for limiting. The advantage of this design is that it makes full use of the weight of the mechanism itself to ensure that the running assembly will not derail. Due to the cantilever beam structure, the center of the entire mechanism falls near the drive part, and the lower track is equivalent to the fulcrum of the entire longitudinal displacement pump pipe mechanism. The upper track 5 performs the limiting function, and uses its own gravity to ensure the contact between the A group running wheel 2.21 and the upper track.

[0039] In this embodiment, preferably, a rack 7 is provided on the lower track 6, and the tooth surface of the rack is arranged downward; and a gear matching the rack is provided on the driving member.

[0040] In the present embodiment, preferably, the second frame 1.2 includes a fixed section 1.21 and a movable section 1.22, the first end of the fixed section is arranged on the first frame, and the movable section is movably arranged on the second end of the fixed section through a telescopic member 1.23; the second end of the pump pipe and / or the second pump pipe interface are arranged on the movable section. Preferably, the telescopic member is an oil cylinder or an air cylinder. Further preferably, the second end of the pump pipe and / or the second pump pipe interface is movably arranged on the movable section through a clamping member 1.3. The design of the clamping member can ensure that the angle of the second pump pipe interface 3.3 can be automatically adjusted (fine-tuned) when docking with the docking member B, further ensuring the air tightness of the pipeline during docking. The clamping member 1.3 can preferably adopt a combination design of a C-shaped bending plate and a connecting column. The C-shaped bending plate is detachably connected to the second end of the pump tube and / or the second pump tube interface. The connecting column is arranged on the movable section, which can enable the C-shaped bending plate and the second pump tube interface to swing at a certain angle in the vertical plane around the axis of the connecting column, thereby achieving fine-tuning of the second pump tube interface during docking to meet the alignment requirements.

[0041] In this embodiment, a limiting device is also provided to prevent the traveling assembly from derailing, and the limiting device is arranged on the second frame and / or the track, which can effectively prevent the longitudinal pump pipe mechanism from derailing when docking with other components (such as a material distribution trolley).

[0042] The longitudinal pump pipe mechanism of this embodiment is applied to the material distribution system, which specifically includes a docking piece B and the longitudinal pump pipe mechanism as described above. The material distribution system is used in conjunction with a trolley, and the trolley's door frame is provided with a track in the same length direction as the tunnel; the docking piece B includes at least two groups of docking pieces arranged along the length direction of the tunnel; the longitudinal pump pipe mechanism is movably arranged on the trolley's door frame, and the walking component in the longitudinal pump pipe mechanism matches the track; the second end of the pump pipe in the longitudinal pump pipe mechanism is connected to the docking piece through the second pump pipe interface. Specifically here:

[0043] For the top formwork: the joint B here is the pouring port, the concrete placing machine is connected to the longitudinal pump pipe mechanism, and the longitudinal pump pipe mechanism directly transports the concrete to the pouring port. When the position of the concrete placing machine is higher than the pouring port, the longitudinal pump pipe mechanism plays the role of connecting the pipeline, directly connecting the concrete placing machine and the pouring port, and the concrete enters the pouring port under the action of gravity (the traditional injection relying on pure gravity, the height of the injected concrete cannot be higher than the lowest level of the pouring port). When the installation position of the concrete placing machine is low (such as the discharge port of the concrete placing machine is lower than the position of the pouring port), the longitudinal pump pipe mechanism can play the dual functions of pressure maintenance and connection. Under the action of pressure, the concrete can smoothly enter the pouring port to achieve distribution, and the height of the injected concrete can be higher than the lowest level of the pouring port or even higher than the highest level of the pouring port, and the pressure injection can improve the density of the concrete and improve the quality. For the side formwork: the joint B here is the pouring pipe (such as a chute, etc.), the concrete placing machine is connected to the longitudinal pump pipe mechanism, and the longitudinal pump pipe mechanism is connected to the pouring pipe to realize the transportation of concrete. Based on the longitudinal displacement pump pipe mechanism, it can be designed as a connected structure or a pressure-maintaining and connected structure. The installation position of the concrete placing boom is the same as the top template solution (flexible and changeable).

[0044] Therefore, the material distribution system of this embodiment adopts the design of the longitudinal displacement pump pipe mechanism, which can not only simplify the pipelines of the material distribution system, but also ensure that the installation position of the material distribution machine is flexible and changeable, and has strong practicality.

[0045] In this embodiment: the channel steel at the track can be widened and the driving part can be placed therein, so that the driving part also serves as the traveling wheel; the floating mechanism design of the traveling wheel group can also be set on the track, and a floating device is set at the rack end (preferably: the connection between the gear and the rack is a floating connection, and the preload force is provided by the spring to ensure effective contact between the gear and the rack, and it can also protect the traveling assembly when the rack is contaminated by concrete), replacing the floating device of the driving mechanism.

[0046] The material distribution system of this embodiment is used to distribute materials, including the following steps:

[0047] Assemble a trolley with a track on the gantry and the above-mentioned material distribution system; set the support frame in the longitudinal pump pipe mechanism on the gantry of the trolley and set the travel component in the longitudinal pump pipe mechanism corresponding to the track;

[0048] Fabric construction, including:

[0049] Step ①, the walking assembly drives the longitudinal pump pipe mechanism to move to the construction station on the track;

[0050] Step ②, the second end of the pump tube is extended to a corresponding position so that the second pump tube interface is connected to the docking piece to carry out material distribution;

[0051] Step ③, after the material is laid, the second pump pipe interface is separated from the docking unit, and the second end of the pump pipe and the second pump pipe interface are retracted;

[0052] Step ④: If pouring is completed, the construction is ended; otherwise, the walking assembly drives the longitudinal pump pipe mechanism to move to the next construction station and returns to step ②.

[0053] In the present embodiment, when the longitudinally moving pump pipe mechanism performs longitudinal movement, the telescopic member must be shortened accordingly to prevent interference (such as collision) between the longitudinally moving pump pipe mechanism and other components (such as vertical supports, etc.).

[0054] By applying the scheme of this embodiment, a new pouring system can be formed by a material distribution trolley and longitudinal pump pipe mechanisms distributed on both sides of it, and the effects are: ① The longitudinal pump pipe mechanism can slide along the longitudinal direction of the trolley, and adopts a modular design, which greatly reduces the use of pump pipes (the longitudinal pump pipe mechanism can replace a large number of pouring pipelines located in the top mold of the trolley and other parts in the original material distribution system, so as to simplify the structure, and also make the pouring of the upper part standardized and modular); ② The pouring pipeline is simplified and the working space inside the trolley is increased; the reduction of pipelines also greatly reduces the risk of pipe blockage and reduces the cost of replacing pipes; ③ The longitudinal pump pipe mechanism and the pouring pipeline or the material distribution machine adopt a flexible connection, which can realize pressure pouring and provide concrete density, and the installation position of the material distribution machine can be flexibly selected, which is highly practical.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A material distribution system, characterized in that: It includes a docking piece B, a placing machine and a longitudinal pump pipe mechanism; the docking piece B includes at least two sets of docking pieces arranged along the length direction of the tunnel; The longitudinal pump pipe mechanism comprises a support frame, a walking assembly and a pump pipe group; The support frame includes a first frame body and a second frame body connected to each other; The pump tube set includes at least one pump tube, the first end of the pump tube is arranged on the first frame, and the first end is provided with a first pump tube interface; the second end of the pump tube is arranged on the second frame, and the second end is provided with a second pump tube interface; The walking assembly is arranged on the support frame and is used to drive the entire longitudinal pump pipe mechanism to move; The walking assembly matches the track arranged on the gantry of the trolley; the longitudinal pump pipe mechanism is located between the material placing machine and the docking piece B; the first pump pipe interface is connected to the docking piece A on the material placing machine; the second pump pipe interface is connected to the docking piece; the docking piece B is a pouring port or a pouring pipe; The second frame includes a fixed section and a movable section, wherein the first end of the fixed section is arranged on the first frame, and the movable section is movably arranged on the second end of the fixed section through a telescopic member; the second end of the pump tube and / or the second pump tube interface are fixedly or movably arranged on the movable section; An upper track and a lower track are arranged on the trolley docked with the longitudinally moving pump pipe mechanism.

2. The material distribution system according to claim 1, characterized in that: Flexible docking is adopted between the first pump tube interface and the docking piece A and / or between the second pump tube interface and the docking piece B.

3. The material distribution system according to claim 1, characterized in that: The second end of the pump tube is movably arranged on the second frame to adjust the distance between the first end and the second end of the pump tube.

4. The material distribution system according to claim 1, characterized in that: The travel assembly comprises a driving member and a travel wheel group connected to the driving member. The driving member is arranged on a supporting frame, and the driving member provides power for the movement of the travel wheel group.

5. The material distribution system according to claim 4, characterized in that: The walking wheel group includes a group A walking wheels and a group B walking wheels. The group A walking wheels are arranged on the first frame and the rotation axis of the group A walking wheels is arranged in the vertical direction; the group B walking wheels are arranged on the second frame and the rotation axis of the group B walking wheels is arranged in the horizontal direction.

6. The material distribution system according to claim 5, characterized in that: A rack is arranged on the track matching with the B group of running wheels, and the tooth surface of the rack is arranged downward; the driving member is arranged on the second frame, and the driving member is provided with a gear matching with the rack.

7. A method for distributing materials, characterized in that: The following steps are involved: Assemble a trolley with a track on the gantry and the material distribution system as claimed in claim 1; arrange the support frame in the longitudinal pump pipe mechanism on the gantry of the trolley and arrange the travel assembly in the longitudinal pump pipe mechanism corresponding to the track; Fabric construction, including: Step ①, the walking assembly drives the longitudinal pump pipe mechanism to move to the construction station on the track; Step ②, the second end of the pump tube is extended to a corresponding position so that the second pump tube interface is connected to the docking piece; and the material is laid; Step ③, after the material is laid, the second pump pipe interface is separated from the docking unit, and the second end of the pump pipe and the second pump pipe interface are retracted; Step ④: If pouring is completed, the construction is ended; otherwise, the walking assembly drives the longitudinal pump pipe mechanism to move to the next construction station and returns to step ②.

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