Layout structure of ductile cast iron pipe concrete outer wall production line

Abstract

The utility model relates to nodular cast iron top pipe production technical field discloses a kind of layout structure of nodular cast iron top pipe concrete outer wall production line, including production plant, bridge crane and grouting pit are provided in production plant, first electric slide rail is provided in production plant with grouting pit layout direction is parallelly arranged, bridge crane is slidably connected in first electric slide rail to be able to move along production line layout direction in production plant, the production plant is also provided with the auxiliary crane that the movement direction is adaptively arranged with bridge crane, the lifting weight of auxiliary crane, span width and setting height are less than bridge crane setting;The utility model is through the newly added auxiliary crane in production plant structure to decompose the workload of bridge crane and the position of auxiliary crane in production plant is specifically set, compared with prior art, with the advantages of improving production efficiency, reducing security risk.

Description

Technical Field

[0001] This utility model relates to the layout structure of a production line for the concrete outer wall of ductile iron jacking pipes, and belongs to the technical field of ductile iron jacking pipe production. Background Technology

[0002] With the expansion of water conservancy and municipal underground pipe network construction, the market demand for ductile iron jacking pipes (with concrete outer walls) has been increasing year by year, and the production capacity and efficiency of the production line have become the core competitiveness of enterprises. The core equipment that runs through the entire production line and is of paramount importance is the crane used for lifting operations.

[0003] Cranes typically operate on production lines in the following ways: (1) Mold hoisting and assembly: The disassembly and assembly of the outer mold must be carried out by a crane to achieve precise mold closing and disassembly.

[0004] (2) Concrete pouring: After the concrete is mixed, it needs to be lifted by a crane to the concrete hopper for pouring.

[0005] (3) Steam curing: The steam curing hood needs to be lifted onto the pipe mold by a crane in order to carry out the required curing on the pipe mold. After the pipe mold has been cured quickly, it also needs to be lifted off by a crane.

[0006] (4) Demolding: The cured top pipe needs to be lifted vertically out of the mold with the help of a crane.

[0007] (5) Shipping: The finished pipe jacking products need to be hoisted to the yard by a crane to wait for shipment.

[0008] Without cranes, these processes would rely entirely on a large amount of manpower and small machinery, resulting in extremely low efficiency and making it difficult to achieve the streamlined, large-scale production of modern factories.

[0009] Currently, in existing technologies, such as Figure 1 As shown, Figure 1 This diagram shows the layout of a conventional ductile iron pipe jacking concrete outer wall production line. The ductile iron pipe jacking concrete outer wall production line adopts a "linear series" layout, that is, following the sequence of "pipe core placement → mold assembly → concrete pouring → curing → demolding → finished product inspection → warehousing." However, the crane configuration typically consists of only one bridge crane (or gantry crane if it is an outdoor production line) responsible for all lifting operations on the production line. This leads to the following problems in practical use: 1. All processes requiring hoisting, such as core insertion, mold assembly, concrete hoisting into the hopper, and demolding, require a single crane. This results in many processes requiring hoisting simultaneously, which can easily lead to gaps in the process, long waiting times, and low production efficiency.

[0010] 2. Having only one crane will cause the crane to work under high load for a long time, which can easily lead to crane failure and may endanger the lives of operators on the production line, posing a high safety hazard.

[0011] In response to the above problems, the industry has tried to improve the situation by adding small ground handling equipment and expanding factory area, but these measures have not solved the problem at its root by addressing the crane layout. Instead, they have led to further increases in costs and a failure to effectively improve efficiency. Utility Model Content

[0012] In order to solve the above-mentioned problems existing in the prior art, this utility model provides a layout structure for a ductile iron jacking pipe concrete outer wall production line.

[0013] The technical solution of this utility model is as follows: A layout structure for a ductile iron jacking pipe concrete outer wall production line includes a production workshop, a bridge crane and a grouting pit, and a first electric slide rail arranged parallel to the layout direction of the grouting pit. The bridge crane is slidably connected to the first electric slide rail so that it can move within the production workshop along the layout direction of the grouting pit. An auxiliary crane with a movement direction adapted to the bridge crane is also provided in the production workshop. The lifting weight, span width and setting height of the auxiliary crane are all smaller than those of the bridge crane.

[0014] The auxiliary crane includes a second electric slide rail and a ground rail arranged parallel to the grouting pit layout direction. Both the second electric slide rail and the ground rail are located below the first electric slide rail. The second electric slide rail is located on the side wall of the production plant close to the grouting pit, and the ground rail is located on the ground of the production plant. At least one gantry bracket is slidably mounted on the ground rail. Crane brackets are installed on the side walls of all gantry brackets close to the second electric slide rail. Crane bodies are slidably mounted on all crane brackets. The ends of all crane brackets away from the gantry brackets are slidably connected to the second electric slide rail.

[0015] The distance between the crane support and the production plant shall not be less than 7m.

[0016] The track gauge between the second electric slide rail and the ground rail is at least twice the width of the grouting pit.

[0017] Among them, a cantilever support is also provided on the side wall of the gantry support away from the grouting pit, and a crane cantilever is also provided on the cantilever support.

[0018] The number of gantry supports is two.

[0019] This utility model has the following beneficial effects: This invention addresses the issue of workload distribution in bridge cranes by adding an auxiliary crane within the production plant structure. The auxiliary crane is specifically positioned within the plant. In operation, the bridge crane primarily handles heavier items, such as core pipe installation, demolding finished pipe installation, and warehousing. The auxiliary crane, on the other hand, handles lighter items, such as mold installation / disassembly, steam curing hood installation, and concrete loading / unloading. Compared to existing technologies, this approach, by dividing the functions of the bridge crane and auxiliary crane and specifically positioning the auxiliary crane within the production plant, allows multiple processes to be completed simultaneously, reduces the workload of the bridge crane, and offers advantages such as increased production efficiency and reduced safety hazards. Attached Figure Description

[0020] Figure 1 This is a layout diagram of a ductile iron jacking pipe concrete outer wall production line in the existing technology; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a top view of the present invention; Figure 4 This is a structural diagram of the present invention when the bridge crane is replaced by a combination of a gantry crane and a bridge crane.

[0021] The reference numerals in the figure are as follows: 1. Production plant; 2. Bridge crane; 3. Grouting pit; 4. First electric slide rail; 5. Auxiliary crane; 51. Second electric slide rail; 52. Ground rail; 53. Gantry support; 54. Crane support; 55. Crane body; 56. Cantilever support; 57. Crane cantilever. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] Example: Please refer to Figure 2 and 3This embodiment provides a layout structure for a ductile iron jacking pipe concrete outer wall production line, including a production workshop 1. The production workshop 1 contains a bridge crane 2 and a grouting pit 3. The bridge crane 2 is positioned close to the top of the production workshop 1, and the grouting pit 3 is located on the ground of the production workshop 1. A first electric slide rail 4 is installed within the production workshop 1, parallel to the direction of the grouting pit 3. The first electric slide rail 4 is symmetrically arranged on both side walls of the production workshop 1, close to the top. The bridge crane 2 is slidably connected to the first electric slide rail 4, allowing it to move within the production workshop 1 along the direction of the grouting pit 3 under the drive of the first electric slide rail 4, thereby performing the required lifting work. An auxiliary crane 5 is also installed within the production workshop 1, with its direction of movement adapted to that of the bridge crane 2. The auxiliary crane 5 does not interfere with the bridge crane 2. The lifting weight, span width, and installation height of the auxiliary crane 5 are all smaller than those of the bridge crane 2, enabling it to be used for lifting lighter items.

[0024] The auxiliary crane 5 includes a second electric slide rail 51 and a ground rail 52, both arranged parallel to the direction of the grouting pit 3. Both the second electric slide rail 51 and the ground rail 52 are located below the first electric slide rail 4. The second electric slide rail 51 is mounted on the side wall of the production workshop 1 near the grouting pit 3, and the ground rail 52 is mounted on the floor of the production workshop 1. The lengths of the second electric slide rail 51 and the ground rail 52 are appropriately matched. At least one vertically arranged gantry support 53 is slidably mounted on the ground rail 52. The specific number of gantry supports 53 can be selected according to actual conditions; preferably, there are two gantry supports 53 to distinguish between subsequent processes. In this embodiment, two gantry supports 53 are slidably mounted on the ground rail 52. Each gantry support 53 has a crane support 54 installed on the side wall close to the second electric slide rail 51. The crane support 54 is perpendicular to the gantry support 53. Each crane support 54 has a crane body 55 slidably mounted on it. The end of each crane support 54 away from the gantry support 53 is slidably connected to the second electric slide rail 51, so that it can move along the layout direction of the grouting pit 3 in the production plant 1 under the drive of the second electric slide rail 51, thereby performing the required hoisting work. During the movement of the crane support 54, it can drive the corresponding gantry support 53 to slide on the ground rail 52 accordingly.

[0025] Since the core pipe inside the grouting pit 3 will be 30.5m higher than the grouting pit, in order to ensure that the auxiliary crane 5 can lift it smoothly and can lift the standard mold with a length of 6m that is fitted outside the core pipe, in this embodiment, the distance between the crane support 54 and the production plant 1 is not less than 7m, with 7m as the priority, and a safety distance of 50cm is reserved to be completely sufficient, and can also ensure that it will not occupy too much plant space and thus affect the operation of the bridge crane 2.

[0026] To facilitate subsequent handling and turnover during mold hoisting, the track gauge between the second electric slide rail 51 and the ground rail 52 is at least twice the width of the grouting pit 3, so as to ensure that there is enough space for the required operations during mold hoisting.

[0027] If the distance between the gantry support 53 and the side wall of the production plant 1 away from the grouting pit 3 is sufficient, and according to the actual needs of the site, in this embodiment, a cantilever support 56 can also be provided on the side wall of the gantry support 53 away from the grouting pit 3. The cantilever support 56 is arranged parallel to the crane support 54, and a crane cantilever 57 is also provided on the cantilever support 56. By setting up the crane cantilever 57 and the cantilever support 56, the working range of the auxiliary crane 5 can be expanded and the operational flexibility of the hoisting work can be improved to meet the needs of the actual site.

[0028] In this embodiment, the working principle is as follows: the bridge crane 2 can mainly lift heavier items, such as lifting in pipe cores, lifting out finished pipes after demolding, and putting finished products into the warehouse, while the auxiliary crane 5 can lift lighter items, such as installing and dismantling molds, lifting steam curing hoods, and lifting concrete into the hopper. At the same time, in use, by controlling the operation of the second electric slide rail 51, the second electric slide rail 51 drives the two crane supports 54 to be positioned at the front and rear ends of the grouting pit 3, respectively, so as to realize the partitioned lifting operation of the two crane bodies 55.

[0029] This embodiment can be upgraded and transformed entirely using existing sites with minimal investment. It only requires the addition of two cranes (55 units), which can increase efficiency by at least two times and greatly improve safety, meeting the actual production needs of enterprises.

[0030] The auxiliary crane 5 provided in this embodiment is essentially a combination crane of a gantry crane and a bridge crane 2. In practical use, it has been found that this type of combined crane has advantages over the traditional bridge crane 2, including greater lifting capacity and better structural stability. Therefore, please refer to... Figure 4 In actual use, the bridge crane 2 in the production plant 1 can also be modified into a combination crane of gantry crane + bridge crane 2 with a structure similar to that of auxiliary crane 5, depending on the actual situation. However, it is necessary to ensure that there will be no interference with auxiliary crane 5.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

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