CN207244659U - On-site rapid prototyping machine for urban underground comprehensive pipe gallery - Google Patents

Abstract

The utility model provides an on-spot rapid prototyping machine of city utility tunnel which belongs to the technical field of the underground space of road bridge roof beam. The movable type self-propelled walking trolley comprises an outer template, a front end template, a rear end template and an inner model, wherein the outer template, the front end template and the rear end template are carried on a walking trolley, the inner model is carried on a bearing beam, and a foldable front support, a middle support and a rear support are arranged below the bearing beam. The positions of the front end template and the rear end template on the walking trolley are adjustable up and down for sealing with the foundation. The bearing beam can penetrate through the front end template and the rear end template, so that the carried internal mold is arranged between the external molds. And after the module assembly is finished, pouring in place and preserving health. The die is assembled and installed into a whole by using a special connecting piece, and can be repeatedly used. Because the transportation weight and the transportation size are not required to be considered, the production construction of large concrete members can be carried out, and the construction period and the manufacturing cost can be greatly saved because the mounting and demoulding speed is high.

Description

On-site rapid prototyping machine for urban underground comprehensive pipe gallery

technical field

The utility model relates to an on-site rapid prototyping machine for an urban underground comprehensive pipe gallery, which belongs to the technical field of underground spaces of roads and bridges.

Background technique

In order to change the mode of urban development and promote the development of urban management in the direction of modernization, large-scale construction of urban underground comprehensive pipe corridors and underground space is being carried out in various places. The main structure construction technologies of urban comprehensive pipe corridors mainly include traditional cast-in-place methods and prefabricated Assembly method. The traditional cast-in-place construction technology is greatly affected by seasons and climate, low construction efficiency, long construction period, large environmental pollution, and difficult quality control. The construction of prefabricated assembly construction technology is less affected by seasons and climate, high construction efficiency, short construction period, and easy quality control; but there are restrictions on the transportation weight and transportation size of prefabricated components, and the transportation and hoisting costs are high.

Contents of the invention

In order to solve the problems existing in the prior art, the present invention provides an on-site rapid prototyping machine for urban underground comprehensive pipe gallery and its working method. high. The hydraulic system is used to realize automatic operation such as mold set and demoulding, and the forming machine realizes automatic walking through electrical appliances or hydraulic control system with a high degree of automation.

The technical solution adopted in the present invention is: a site rapid prototyping machine for urban underground comprehensive pipe gallery, which includes a traveling trolley with traveling wheels, the two sides of the traveling trolley are provided with external templates, and the front end of the traveling trolley is provided with a front end Head formwork, the rear end of the walking trolley is provided with a rear end formwork; a four-walled inner formwork is set between the outer formworks, the inner formwork is mounted on a load-bearing beam, and a foldable front support and an intermediate support are set under the beam. Supporting rollers are arranged under the middle support and the middle support; the rear end of the load-bearing beam is fixed on the main beam. The molding machine consists of main structure, inner and outer molds, end plate molds, walking system, hydraulic control system, electrical control system and so on. The main structure is composed of the main beam, the cross beam supporting the inner mold, the outriggers on both sides on the ground beam track and other connecting parts; the forming machine is driven on both sides of the track by a hydraulic motor or a reducer. The outer mold, inner mold and end mold are connected with the frame and crossbeam of the main structure through a hydraulic cylinder, and the inner and outer molds and the end mold are formed and demoulded through the expansion and contraction of the oil cylinder of the hydraulic system. A foldable front support and a middle support are arranged below the front end of the crossbeam supporting the inner mold.

A working method of an on-site rapid prototyping machine for an urban underground comprehensive pipe gallery, comprising the following steps:

(1) Fold and store the front support of the load-bearing beam, walk forward through the walking trolley forming machine, the front end of the beam passes through the steel cage, and open the front support after reaching the other end;

(2) Fold and put away the middle support of the load-bearing beam, and continue to walk the molding machine until the inner mold is placed under the steel cage, and the middle support is erected;

(3) Adjust the height of the outer formwork, front end formwork and rear end formwork on the walking trolley up and down, so that the outer formwork, front end formwork, rear end formwork and the foundation are sealed;

(4) Clamp and install the inner mold through the expansion and contraction of the oil cylinder of the hydraulic system, and connect the inner and outer molds into one body through the auxiliary connector between the inner and outer molds, and pour concrete and maintain the health after completing the formwork;

(5) After the poured concrete reaches the demoulding strength through rapid steam curing, the inner mold is tightened and separated from the concrete structure as a whole, and the outer mold and end mold are also pulled apart by the hydraulic cylinder.

(6) Walk the pipe gallery forming machine as a whole backwards through the walking trolley until it leaves the newly formed concrete structure, and then demould.

The construction method includes steel (or aluminum alloy) outer mold, steel (or aluminum alloy) front and rear end plates, steel (or aluminum alloy) inner mold, main beam of the main structure, load-bearing inner mold supporting beam, walking platform car, prefabricated steel cage. The prefabricated steel cage is first placed at the designated position, and the forming machine walks to the designated position, so that the beam supporting the inner mold is inserted into the prefabricated steel cage, and the mold is assembled and installed through the hydraulic system and auxiliary connectors to make it integrated. Then pour the concrete and carry out proper curing to achieve the demoulding strength before demoulding.

The inner mold is removed first, and then the outer mold and end formwork are removed. After the formwork leaves the concrete structure, the forming machine is moved backward to the designated position through the walking system. Install the prefabricated reinforcement cage again, and the forming machine walks to the designated position, so that the crossbeam supporting the inner mold is inserted into the prefabricated reinforcement cage, and the mold is assembled and installed through the hydraulic system and auxiliary connectors to make it integrated. Then pour the concrete and carry out proper curing to achieve the demoulding strength before demoulding. Repeat this process for the production and construction of the concrete pipe gallery. The molding machine can also make multi-compartment, multi-layer structures.

Beneficial effects of the utility model: the forming machine includes a main structure, inner and outer molds, end plate molds, a walking system, a hydraulic control system, an electrical control system and the like. The main structure is composed of the main beam, the cross beam supporting the inner mold, the outriggers on both sides on the ground beam track and other connecting parts; the forming machine is driven on both sides of the track by hydraulic motor or reducer. The outer mold, inner mold and end mold are connected with the frame and beam of the main structure through the hydraulic cylinder, and the inner and outer molds and the end mold are formed and demoulded through the expansion and contraction of the oil cylinder of the hydraulic system. After the formwork is completed, on-site pouring and health preservation are carried out. The forming machine adopts hydraulic system and electrical control system to realize automatic operation, which can ensure the construction quality and forming accuracy; the forming machine can realize continuous concrete pouring and forming operations in the excavated foundation pit, because there is no need to consider the transportation weight, Due to the limitation of transportation size, it is possible to carry out the construction of urban underground comprehensive pipe corridors and underground space facilities of various specifications and sections, and because of the fast installation and demoulding speed, it can greatly save the construction period and cost.

Place the prefabricated reinforcement cage at the designated position, and then move the molding machine forward as a whole through the walking system of the trolley. The fulcrum moves the internal mold equipped with it to the designated position for combined installation. Because it adopts a walkable forming machine on site to realize automatic forming and demoulding operations, and continuous forming. It not only has the continuity of the cast-in-place process, but also has the quality and efficiency of the prefabricated assembly process; and this construction method does not require a new factory building or transportation, so it is not limited by weight and size, flexible operation, wide application range, and high cost performance. Meet a variety of needs.

Description of drawings

Figure 1 is a front view of an on-site rapid prototyping machine for an urban underground utility tunnel.

Fig. 2 is a side view of an on-site rapid prototyping machine for an urban underground utility tunnel.

Fig. 3 is a top view of an on-site rapid prototyping machine for an urban underground utility tunnel.

Figure 4 is a structural diagram of an on-site rapid prototyping machine (multiple warehouses) for urban underground comprehensive pipe corridors.

In the figure: 1. Outer formwork, 2. Front end formwork, 3. Rear end formwork, 4. Inner formwork, 5. Middle support, 6. Front support, 7. Walking trolley, 7a, Traveling wheels, 8. Load bearing Crossbeam, 9, main beam, 10, support roller.

Detailed ways

Example 1

An on-site rapid prototyping machine for urban underground comprehensive pipe gallery, which includes a traveling trolley 7 with traveling wheels 7a, characterized in that: the two sides of the walking trolley 7 are provided with outer formwork 1, and the front end of the traveling trolley 7 is provided with a front end Template 2, the rear end of the walking trolley 7 is provided with a rear end template 3; a four-walled inner template 4 is arranged between the outer templates 1, and the inner template 4 is mounted on a load-bearing beam 8, and a foldable front panel is arranged under the beam 8. Support 6 and middle support 5, the bottom of front support 6 and middle support 5 are all provided with support roller 10. The load-bearing beam rear end is fixed on the main beam 9.

When adopting above-mentioned technical scheme to work, comprise the following steps:

(1) Fold and store the front support 6 of the load-bearing beam 8, and walk forward through the walking trolley forming machine. The front end of the beam passes through the steel cage, and when it reaches the other end, the front support 6 is opened and supported;

(2) Fold and put away the middle support 5 of the load-bearing beam 8, continue to walk the forming machine until the inner template 4 is placed under the steel cage, and set up the middle support 5;

(3) Adjust the height of the outer formwork 1, the front end formwork 2 and the rear end formwork 3 up and down on the trolley 7, so that the outer formwork 1, the front end formwork 2, the rear end formwork 3 and the foundation are sealed;

(4) Clamp and install the inner formwork 4 through the expansion and contraction of the oil cylinder of the hydraulic system, and connect the inner and outer molds into one through the auxiliary connectors between the inner formworks, and pour concrete and maintain health after completing the formwork operation;

(5) After the poured concrete reaches the demoulding strength through rapid steam curing, the inner formwork 4 is tightened and separated from the concrete structure as a whole, and the outer formwork 1 and end formworks 2 and 3 are also pulled apart by hydraulic cylinders.

(6) Walk the pipe gallery forming machine as a whole backwards through the walking trolley 7 until it leaves the newly formed concrete structure, and then demould.

The forming machine includes a slidable outer formwork 1 carried by a walking trolley 7 on both sides, a front end formwork 2, a rear end formwork 3 and an inner formwork 4 carried by a load-bearing crossbeam 8 . For the installation of the forming machine, first place the prefabricated steel cage at the designated position, and the forming machine with the outer formwork 1, the end formwork 2, the main beam 9, the load-bearing beam 8 and the inner formwork 4 equipped with it are supported 6 before being folded. Move back to the direction of the reinforcement cage, after the front end of the beam passes through the reinforcement cage to reach the other end, set up the front support 6, and at the same time put away the middle support 5, continue to move the molding machine to reach the predetermined position, set up the middle support 5 to carry the inner mold Weight, through the hydraulic system to prop up the inner mold and outer mold, etc. for grouping and installation. Then the concrete is poured. After the poured concrete reaches the demoulding strength, the molding machine can quickly tighten the inner formwork 4 and separate it from the whole, and after the outer mold and end mold are pulled apart, the molding machine moves backward so as to achieve the purpose of demoulding. Outer formwork 1 front end formwork 2, is suspended on the walking trolley 7, makes them can adjust height up and down, thereby can make outer formwork 1, front end head formwork 2, carry out sealing treatment between foundation and meet the mold sealing requirement. The outer formwork 1 and the front end formwork 2 are suspended on the installation vehicle 7, so that they can move back and forth to achieve the purpose of demoulding and regrouping.

Example 2

1) First lay the foundation and lay the cushion according to the requirements.

2) At the same time, the steel cage is processed. For the convenience of transportation, each unit can be 2.5 meters, and a section can be 10 meters, a total of 4 units.

3) Mark the location of the steel cage on the paved cushion and set up the steel cage protective layer jig, and connect the steel bar units according to the design requirements.

4) On-site rapid prototyping machine consists of main structure, main beam 9, first load-bearing beam 8a, second load-bearing beam 8b, third load-bearing beam 8c; inner and outer molds, outer formwork 1, inner formwork 4 (first inner formwork, second Inner formwork, third inner formwork), front end head formwork 2; traveling mechanism, walking trolley 7, front support 6 (first front support, second front support, third front support), support roller 10 (first support roller , the second support roller, the third support roller), the intermediate support 5 (the first intermediate support, the second intermediate support, the third intermediate support) the intermediate support wheel and so on.

5) When working with on-site rapid prototyping machines, the following steps are included:

(1) Fold the front support 6 (the first front support, the second front support, the third front support) of the load-bearing beam 8 (the first load-bearing beam, the second load-bearing beam, and the third load-bearing beam), and pass the middle support 5 (the first intermediate support, the second intermediate support, the third intermediate support) the walking trolley forming machine moves forward, the front end of the beam passes through the steel cage, and when it reaches the other end, the front support 6 (the first front support, the second front support , the third front support) to open the support;

(2) Fold and put away the intermediate support 5 (the first intermediate support, the second intermediate support, the third intermediate support) of the load-bearing beam 8 (the first load-bearing beam, the second load-bearing beam, and the third load-bearing beam), and continue to walk the molding machine , until the inner formwork 4 (the first inner formwork, the second inner formwork, and the third inner formwork) is placed in the reinforcement cage, and the intermediate support 5 (the first intermediate support, the second intermediate support, and the third intermediate support) is erected;

(3) Adjust the height of the outer formwork 1, the front end formwork 2 and the rear end formwork 3 up and down on the trolley 7, so that the outer formwork 1, the front end formwork 2, the rear end formwork 3 and the foundation are sealed;

(4) Clamp and install the inner formwork 4 (the first inner formwork, the second inner formwork, and the third inner formwork) through the expansion and contraction of the oil cylinder of the hydraulic system, and connect the inner and outer molds into one body through the auxiliary connectors between the inner formworks After completing the formwork, pouring concrete, concrete pouring can be poured in stages every 10m. When pouring each section of concrete, leave a construction joint on the wall at a certain height above the top surface of the bottom plate of the pipe gallery, and wait for the concrete to set. Pouring the remainder. Steam curing after pouring concrete;

(5) After the poured concrete reaches the demoulding strength through rapid steam curing, the inner formwork 4 (the first inner formwork, the second inner formwork, and the third inner formwork) is tightened and separated from the concrete structure as a whole, and the outer formwork 1 and The end templates 2 and 3 are pulled apart by hydraulic cylinders.

(6) Walk the pipe gallery forming machine as a whole backwards through the walking trolley 7 until it leaves the newly formed concrete structure, and then demould.

The molding machine includes a slidable outer formwork 1, a front end formwork 2, a rear end formwork 3 and load-bearing beams 8 (first load-bearing beam, second load-bearing beam, third load-bearing beam) carried by a walking trolley 7 on both sides. The carried inner formwork 4 (the first inner formwork, the second inner formwork, and the third inner formwork). For the installation of the forming machine, first place the prefabricated steel cage at the designated position, with outer formwork 1, end formwork 2, main beam 9, and load-bearing beam 8 (the first load-bearing beam, the second load-bearing beam, and the third load-bearing beam) And the forming machine of the inner formwork 4 (the first inner formwork, the second inner formwork, and the third inner formwork) equipped with it is facing backward when the front support 6 (the first front support, the second front support, and the third front support) is folded up. Move in the direction of the reinforcement cage, after the front end of the beam passes through the reinforcement cage to reach the other end, set up the front support 6 (the first front support, the second front support, the third front support), and at the same time put away the first middle support 5 (the first middle Support, the second intermediate support, the third intermediate support), after continuing to move the molding machine to reach the predetermined position, set up the intermediate support 5 (the first intermediate support, the second intermediate support, the third intermediate support) to bear the weight of the inner mold, The inner mold and outer mold are propped up by the hydraulic system for mold installation. Then the concrete is poured. After the poured concrete reaches the demoulding strength, the molding machine can quickly tighten the inner formwork 4 (the first inner formwork, the second inner formwork, and the third inner formwork) and separate them from the whole, and form them after pulling apart the outer formwork and end formwork The machine moves backward to achieve the purpose of demoulding. Outer formwork 1 front end formwork 2, is suspended on the walking trolley 7, makes them can adjust height up and down, thereby can make outer formwork 1, front end head formwork 2, and carry out sealing treatment between foundation and meet the mold sealing requirement. The outer template 1 and the front end template 2 are suspended on the walking trolley 7, so that they can move back and forth to achieve the purpose of demoulding and regrouping.

Claims (1)

1. a kind of Urban Underground pipe gallery scene rapidform machine, it includes carrying traveling wheel（7a）Walking carriage（7）, its It is characterized in that：The walking carriage（7）Both sides set exterior sheathing（1）, walking carriage（7）Front end set front end template （2）, walking carriage（7）Rear end set follower head template（3）；Exterior sheathing（1）Between the inner templates of four wall-shaped is set（4）, it is interior Template（4）It is mounted in the crossbeam of load-bearing（8）On, crossbeam（8）Lower section sets folding front support（6）And intermediate supports（5）, it is preceding Support（6）And intermediate supports（5）Lower section be both provided with back-up roller wheel（10）；The crossbeam rear end of load-bearing is fixed on girder（9）On.