Pipe turning device for PCCP (prestressed concrete cylinder pipe)

Abstract

A pipe turning device for a PCCP (prestressed concrete cylinder pipe) belongs to the technical field of mechanical equipment and comprises a movable steel platform, a steel frame body is rotatably connected to the steel platform and driven by a driving assembly to rotate, one side of the steel frame body is open, the other side of the steel frame body is connected with a bottom plate, a limiting rod is arranged below the open end of the steel frame body, and the bottom plate is connected with a connecting rod. Two sliding fixing assemblies are arranged at the bottom of the steel frame body in the length direction of the steel frame body, and each sliding fixing assembly comprises two limiting discs capable of moving in the width direction of the steel frame body. According to the utility model, the production efficiency can be effectively improved, the labor intensity is reduced, the probability of safety accidents is reduced, and meanwhile, a solid foundation can be laid for subsequent PCCP (Prestressed Concrete Cylinder Pipe) reshipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical equipment and relates to a pipe turning device, in particular to a pipe turning device for a PCCP pipeline. Background Art

[0002] PCCP pipe, or prestressed concrete cylinder pipe, is a water pipe made by winding circumferential prestressed steel wire on a high-strength concrete pipe core with a steel cylinder, and then spraying a dense cement mortar protective layer on it. It is a composite pipe composed of thin steel plate, high-strength steel wire and concrete. It fully and comprehensively exerts the tensile strength and easy sealing of steel and the compressive and corrosion resistance of concrete, and has the characteristics of high sealing, high strength and high impermeability.

[0003] With the rapid development of urban water supply demand, PCCP pipes are increasingly widely used. At present, the domestic PCCP industry has complicated operations and great safety hazards in the process of PCCP pipe turning, which has a great impact on production efficiency and personal safety. Under this circumstance, it is urgent to design and research a set of PCCP pipe turning devices. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a pipe turning device for PCCP pipes, which is used to solve the technical problems in the prior art that the pipe turning operation of PCCP pipes is cumbersome, time-consuming and has great safety hazards.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides a pipe turning device for PCCP pipelines, including a movable steel platform, on which a steel frame is rotatably connected, and the steel frame is driven to rotate by a driving assembly, one side of the steel frame is open, and the other side is connected to a bottom plate, a limit rod is provided below the open end of the steel frame, and two groups of sliding and fixing components are provided at the bottom of the steel frame along its length direction, and each group of the sliding and fixing components includes two limit plates that can move along the width direction of the steel frame.

[0006] Preferably in any of the above schemes, connecting columns are connected at the four corners of the bottom of the steel platform, a pulley is connected to the bottom of each connecting column, and the two pulleys along the width direction of the steel platform are connected by a first transmission shaft, and the first transmission shaft is connected to the output shaft of the first motor.

[0007] Preferably in any of the above schemes, rotating bearings and connecting shafts arranged in parallel are symmetrically connected to both sides of the steel frame.

[0008] Preferably in any of the above schemes, tripods are symmetrically fixedly connected to both sides of the steel platform, a bearing seat is fixedly connected to the top of the tripod, and the rotating bearing is connected to the bearing seat.

[0009] Preferably in any of the above schemes, the driving assembly includes a valve cylinder, the valve cylinder is fixedly connected to the steel platform, the output shaft of the valve cylinder is connected to a telescopic shaft, and the end of the telescopic shaft is hinged to the connecting shaft.

[0010] Preferably, in any of the above schemes, the steel frame is provided with two limit frames along its length direction, and the top of the limit frames is recessed downward to form a walking groove.

[0011] Preferably in any of the above schemes, the sliding and fixing assembly includes a second motor, the output shaft of the second motor is connected to the second transmission shaft, the ends of the second transmission shaft are sequentially connected to a pulley and a limit plate, the pulley is located in the walking groove, a bearing is provided in the middle of the limit plate, and the limit plate is connected to the second transmission shaft through the bearing.

[0012] Preferably in any of the above solutions, the limiting disk is a circular disk or a regular hexagonal disk.

[0013] Preferably in any of the above schemes, the bottom of the limit rod is fixedly connected to the steel platform, the top of the limit rod is fixedly connected to the limit block, and the top of the limit block is fixedly connected to a rubber pad.

[0014] As described above, the pipe turning device for PCCP pipes of the utility model has the following beneficial effects:

[0015] 1. The utility model can effectively improve production efficiency, reduce labor intensity, reduce the probability of safety accidents, and lay a solid foundation for subsequent PCCP pipe transportation.

[0016] 2. The utility model has a simple structure, is easy to install and maintain, and has low production and use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of the structure of the utility model.

[0018] Component number description

[0019] 1-steel platform; 2-steel frame; 21-rotating bearing; 22-connecting shaft; 3-first transmission shaft; 4-valve cylinder; 5-telescopic shaft; 6-limit rod; 61-limit block; 7-sliding fixing assembly; 71-limit plate; 72-limit frame; 73-travel groove; 8-first motor; 81-pulley; 9-bottom plate; 10-connecting column; 11-tripod; 12-bearing seat; 13-second motor. DETAILED DESCRIPTION

[0020] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0021] See also Figure 1 It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantially changing the technical content.

[0022] See also Figure 1 The utility model provides a pipe turning device for a PCCP pipeline, comprising a movable steel platform 1, on which a steel frame 2 is rotatably connected, and the steel frame 2 is driven to rotate by a driving component, one side of the steel frame 2 is open, and the other side is connected to a bottom plate 9, a limit rod 6 is provided below the open end of the steel frame 2, and two groups of sliding and fixing components 7 are provided at the bottom of the steel frame 2 along its length direction, and each group of the sliding and fixing components 7 includes two limit plates 71 that can move along the width direction of the steel frame 2.

[0023] When this embodiment is used, when the bridge crane in the factory hoists the PCCP pipe above the turning device, the operator receives the information given by the bridge crane personnel through the intercom to determine the specific pipe specifications, and then controls the sliding fixing component to move through the controller, and moves the sliding fixing component to the position where the limit plate 71 can fix the PCCP pipe, and then starts the driving component, and the driving component drives the steel frame 2 to rotate to perform the hoisting and turning operation, thereby realizing the turning of the PCCP pipe. The entire turning process is simple to operate, effectively improves production efficiency, and can effectively reduce the probability of safety accidents, laying a solid foundation for the subsequent reversal of PCCP coffins.

[0024] In this embodiment, during the placement process, the PCCP pipeline is placed from the open end of the steel frame 2 to the bottom plate 9. After the placement is completed, it can be turned over so that the pipeline gradually changes from a horizontal state to a vertical state.

[0025] In this embodiment, the setting of the sliding fixing component 7 can fix PCCP pipes of different specifications, thereby realizing the pipe turning of PCCP pipes of different specifications, thereby increasing the application scope of the device.

[0026] In this embodiment, the setting of the limit rod 6 can limit the maximum flip angle of the steel frame 2. At the same time, the maximum flip angle of the steel frame 2 can be adjusted by adjusting the length or position of the limit rod 6.

[0027] In this embodiment, the bottom of the limit rod 6 is fixedly connected to the steel platform 1 by bolts, so that the limit rod 6 can be easily repaired or replaced. The top of the limit rod 6 is fixedly connected to the limit block 61. The setting of the limit block 61 can increase the contact area between the limit rod 6 and the bottom of the steel frame 2, so as to better play the limiting role. The top of the limit block 61 is fixedly connected to a rubber pad. The setting of the rubber pad can reduce the collision force between the steel frame 2 and the limit rod 6 during the rotation process, thereby reducing vibration and impact loss.

[0028] As a further description of the above embodiment, connecting columns 10 are connected at the four corners of the bottom of the steel platform 1, and a pulley 81 is connected to the bottom of each connecting column 10. The two pulleys 81 along the width direction of the steel platform 1 are connected by a first transmission shaft 3, and the first transmission shaft 3 is connected to the output shaft of the first motor 8.

[0029] When this embodiment is in use, the first motor 8 rotates to drive the first transmission shaft 3 to rotate, and the rotation of the first transmission shaft 3 drives the pulley 81 connected to the first transmission shaft 3 to rotate, thereby driving the steel platform 1 to move, making it easy to move the steel platform 1 to a suitable position, reducing the labor intensity of manual movement, and saving manpower and material resources.

[0030] As a further description of the above embodiment, the steel frame 2 is symmetrically connected to parallel rotating bearings 21 and connecting shafts 22 on both sides. The steel platform 1 is symmetrically fixedly connected to tripods 11 on both sides, and the top of the tripod 11 is fixedly connected to a bearing seat 12, and the rotating bearing 21 is connected to the bearing seat 12. The driving assembly includes a valve cylinder 4, which is fixedly connected to the steel platform 1, and the output shaft of the valve cylinder 4 is connected to a telescopic shaft 5, and the end of the telescopic shaft 5 is hinged to the connecting shaft 22.

[0031] When the present embodiment is used, when the PCCP pipeline is placed and needs to be turned over, the valve cylinder 4 is started, and the valve cylinder 4 drives the telescopic shaft 5 to extend or shorten. During the extension or shortening of the telescopic shaft 5, the connecting shaft 22 hinged to the telescopic shaft 5 is driven to move upward or downward, thereby driving the steel frame 2 to rotate around the bearing seat 12, thereby realizing the turning over of the PCCP pipeline. When the PCCP pipeline is turned over to the specified position, the valve cylinder 4 is stopped.

[0032] In this embodiment, the steel platform 1 and the steel frame 2 are connected via the tripod 11, which can increase the stability of the connection between the steel platform 1 and the steel frame 2, thereby improving the stability of the device.

[0033] As a further description of the above embodiment, the steel frame 2 is provided with two limit frames 72 along its length direction, and the top of the limit frame 72 is recessed downward to form a travel groove 73. The sliding fixing assembly includes a second motor 13, the output shaft of the second motor 13 is connected to a second transmission shaft, the ends of the second transmission shaft are sequentially connected to a pulley 81 and a limit plate 71, the pulley 81 is located in the travel groove 73, a bearing is provided in the middle of the limit plate 71, and the limit plate 71 is connected to the second transmission shaft through the bearing.

[0034] When this embodiment is used, after the specifications of the PCCP pipeline are determined, the second motor 13 is started, and the rotation of the second motor 13 drives the second transmission shaft to rotate. The rotation of the second transmission shaft drives the same group of two pulleys 81 to move in the same direction or opposite directions along the running groove 73, thereby adjusting the distance between the two limit plates 71 to achieve the fixation of PCCP pipelines of different specifications.

[0035] In this embodiment, the limiting plate 71 is a circular plate or a regular hexagonal plate, which ensures that the PCCP pipeline can be limited without causing damage to the pipeline.

[0036] In summary, the working process of the tube turning device is as follows:

[0037] The bridge crane is transported to the top of the PCCP pipeline that needs to be hoisted and transported, and the lifting device is aligned with the PCCP pipe socket. After the lifting device is in place, the bridge crane operator lifts the lifting device, and the lifting device will automatically align with the PCCP pipe socket. The lifting device continues to rise 6.5 meters to lift the PCCP pipeline. During the lifting process, the bridge crane moves at a uniform and slow speed to ensure that there will be no large swings during the lifting of the PCCP pipeline.

[0038] When the PCCP pipeline is hoisted to the top of the steel frame 2, the bridge crane operator transmits the specifications of the hoisted PCCP pipeline to the ground pipe turning device operator through the intercom. After receiving the command, the pipe turning device operator transmits the command to the second motor 13 through the remote control. After receiving the command, the second motor 13 moves the sliding fixing component 7 to the working position suitable for the outer diameter of the PCCP pipeline of this specification. After it is in place, the pipe turning device operator transmits the information to the bridge crane operator through the intercom. The bridge crane operator begins to lower the PCCP pipeline to the designated location of the steel frame 2. After the hoist leaves, the pipe turning device operator confirms that the surroundings are safe and then opens the valve cylinder 4. The valve cylinder 4 starts the operation and slowly and evenly turns the steel frame 2 by about 80° through the telescopic shaft 5. After the steel frame 2 reaches the limit device, the pipe turning device operator closes the valve cylinder 4. At this time, the pipe turning work of the PCCP pipeline is completed.

[0039] In summary, the utility model can effectively improve production efficiency, reduce labor intensity, reduce the probability of safety accidents, and lay a solid foundation for subsequent PCCP pipe transportation. Therefore, the utility model effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

[0040] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A pipe turning device for PCCP pipes, characterized by: The invention comprises a movable steel platform (1), a steel frame (2) being rotatably connected to the steel platform (1), the steel frame (2) being driven to rotate by a driving assembly, one side of the steel frame (2) being open, and the other side being connected to a bottom plate (9), a limiting rod (6) being provided below the open end of the steel frame (2), and two groups of sliding fixing assemblies (7) being provided at the bottom of the steel frame (2) along its length direction, each group of the sliding fixing assemblies (7) comprising two limiting plates (71) movable along the width direction of the steel frame (2).

2. The pipe turning device for PCCP pipe according to claim 1, characterized in that: The four corners of the bottom of the steel platform (1) are connected to connecting columns (10), and the bottom of each connecting column (10) is connected to a pulley (81). Two pulleys (81) along the width direction of the steel platform (1) are connected via a first transmission shaft (3), and the first transmission shaft (3) is connected to the output shaft of the first motor (8).

3. The pipe turning device for PCCP pipe according to claim 1, characterized in that: The steel frame (2) has symmetrically connected two sides thereof with parallelly arranged rotating bearings (21) and connecting shafts (22).

4. The pipe turning device for PCCP pipe according to claim 3, characterized in that: The two sides of the steel platform (1) are symmetrically fixedly connected with a tripod (11), the top of the tripod (11) is fixedly connected with a bearing seat (12), and the rotating bearing (21) is connected to the bearing seat (12).

5. The pipe turning device for PCCP pipe according to claim 3, characterized in that: The driving assembly comprises a valve cylinder (4), the valve cylinder (4) is fixedly connected to the steel platform (1), the output shaft of the valve cylinder (4) is connected to a telescopic shaft (5), and the end of the telescopic shaft (5) is hinged to a connecting shaft (22).

6. The pipe turning device for PCCP pipe according to claim 1, characterized in that: The steel frame (2) is provided with two limit frames (72) along its length direction, and the tops of the limit frames (72) are recessed downward to form a walking groove (73).

7. The PCCP pipe turning device according to claim 6, characterized in that: The sliding fixing assembly (7) comprises a second motor (13), the output shaft of the second motor (13) is connected to a second transmission shaft, the ends of the second transmission shaft are connected to a pulley (81) and a limiting plate (71) in sequence, the pulley (81) is located in a running groove (73), a bearing is provided in the middle of the limiting plate (71), and the limiting plate (71) is connected to the second transmission shaft via the bearing.

8. The PCCP pipe turning device according to claim 1, characterized in that: The limiting disk (71) is a circular disk or a regular hexagonal disk.

9. The pipe turning device for PCCP pipe according to claim 1, characterized in that: The bottom of the limit rod (6) is fixedly connected to the steel platform (1), the top of the limit rod (6) is fixedly connected to the limit block (61), and the top of the limit block (61) is fixedly connected to a rubber pad.

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