Variable size pumping concrete delivery pipe ball cleaner

Abstract

The application discloses a variable-size pumping concrete conveying pipeline spherical cleaning machine, which comprises a telescopic scraper assembly, a support ball assembly and a telescopic machine body assembly, the support ball assembly comprises a front hemisphere support and a rear hemisphere support, a rotary motor is arranged on the planar middle part of the rear hemisphere support, a rotary motor shaft of the rotary motor is connected with the plane of the front hemisphere support, the telescopic scraper assembly comprises a front shell and a scraper assembly, the front shell is composed of four front shell assemblies, one scraper assembly is arranged on the outer curved surface of each front shell assembly, four front shell hydraulic cylinders are arranged on the curved surface of the front hemisphere support, and the front shell hydraulic cylinder top rod of each front shell hydraulic cylinder is connected with the inner curved surface of the corresponding front shell assembly. The spherical machine body assembly can not only clean the concrete in the straight pipeline, but also clean the concrete in the curved pipeline; and the telescopic machine body assembly and the telescopic scraper assembly can be driven to be telescopic through the hydraulic cylinders, so that the conveying pipelines with different diameters can be cleaned.

Description

Technical Field

[0001] This invention relates to the technical field of pipeline cleaning, and in particular to a spherical cleaning machine for variable-size pumped concrete conveying pipelines. Background Technology

[0002] Pumped concrete is a method of transporting and pouring concrete mixtures using concrete pumps or pump trucks along delivery pipes. It is an efficient way to transport concrete mixtures, offering speed and requiring less labor, and is particularly suitable for transporting and pouring large volumes of concrete and concrete for high-rise buildings. Currently, pumped concrete generally uses assembled steel pipes for transportation, and the inside of the delivery pipes needs to be cleaned after the work is completed.

[0003] Cleaning of high-rise concrete pumping pipelines commonly uses water washing, air washing, or a combination of both. Air washing uses compressed air to drive a cleaning device inserted into the pipeline, which removes concrete residue from the pipe wall. However, compressed air-driven cleaning devices are unstable and pose safety hazards. Improper operation can cause the cleaning device, along with concrete slurry, to spray out of the delivery pipe, creating an "air cannon" effect that can harm the health of on-site personnel. Water washing involves injecting water into the delivery pipeline and then activating the pipeline drive device to allow the water mixed with concrete to flow out from the pipeline outlet, which is usually located on the working surface. Concrete delivery pipelines require frequent cleaning (in principle, cleaning is required if pumping operations stop for more than 5 minutes). The water generated during cleaning cannot be disposed of on the working surface, making treatment difficult and resulting in water waste.

[0004] Patent No. 202021698789.X, "A Cleaning Device for Pumped Concrete Conveying Pipelines," features an inclined tee at the inlet of the conveying pipeline and a take-up mechanism at the outlet. One end of the rope in the take-up mechanism is connected to a cleaning ball, which enters from the inlet section. The take-up mechanism pulls the cleaning ball to clean the conveying pipeline. Patent No. 201911351834.6, "A Cleaning Device and Method for Concrete Conveying Pump Pipelines in Super High-Rise Buildings," includes a coaxial and sequentially connected vertical vibration mechanism, a lateral support and positioning mechanism, and a pump pipe dredging and cleaning mechanism. The coarse and fine grinding wheel supports of the pump pipe dredging and cleaning mechanism move in a circular motion along the inner wall of the pipeline under the drive of a rotating motor. The rotation of the coarse and fine grinding wheels and the vertical vibration impact remove concrete from the inner wall of the pipeline. The specification 202021681018.X, "A Cleaning Device for Pumped Concrete Pipelines," describes a concrete pipeline equipped with a hinged guide section and several tail sections. Each tail section has a scraper fixedly connected to its end. The free end of the guide section has a horizontal rotating shaft. One end of the guide section is connected to a scraper rod perpendicular to the shaft axis. Both ends of the scraper rod abut against the inner wall of the concrete pipeline. High-pressure air drives the scraper rod to move, which in turn moves the tail sections and guide sections along the concrete pipeline. A drive mechanism rotates the shaft, causing the scraper rod to rotate and clean the concrete residue from the pipeline. Finally, the scraper rod cleans the entire concrete pipeline. The existing concrete cleaning equipment for conveying pipelines has the following problems: (1) It requires other auxiliary equipment, such as a winding mechanism, fixed support, vibration impact device and high-pressure air pump, and even requires changes to the pipeline structure, such as connecting the pipeline to a tee, which increases the equipment cost; (2) It lacks the function of automatic walking in the pipeline and is not suitable for cleaning concrete in ultra-high-rise or long-distance conveying pipelines; (3) Due to the need for auxiliary equipment and the lack of automatic walking function, the performance and effect of cleaning the pipeline are unstable; (4) It cannot simultaneously achieve the cleaning of concrete in straight pipes and bends or the effect is poor; (5) The size of the cleaning equipment is fixed and cannot adapt to the cleaning of concrete in conveying pipelines with varying diameters. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the prior art by providing a variable-size spherical cleaning machine for pumped concrete conveying pipelines. The spherical cleaning machine consists of a front hemisphere and a rear hemisphere, with a rotary motor positioned between them. A scraper assembly is mounted on the front hemisphere, and wheels are arranged around the rear hemisphere. The spherical cleaning machine advances along the conveying pipeline, driving the front hemisphere with its scraper assembly to rotate, thereby cleaning the concrete inside the pipeline and achieving the purpose of cleaning the pipeline. Furthermore, the spherical cleaning machine consists of an inner spherical body and an outer spherical body, connected by a hydraulic cylinder. The hydraulic cylinder can freely extend and retract to allow the spherical cleaning machine to reach different diameters.

[0006] The objective of this invention is achieved through the following technical solutions:

[0007] A spherical cleaning machine for variable-size pumped concrete conveying pipelines is characterized by the following: the spherical cleaning machine includes a telescopic scraper assembly, a support ball assembly, and a telescopic body assembly. The support ball assembly includes a front hemisphere support and a rear hemisphere support. A rotary motor is installed in the center of the plane of the rear hemisphere support. The rotary motor shaft is connected to the plane of the front hemisphere support. The rotary motor drives the front hemisphere support to rotate through the rotary motor shaft. The telescopic scraper assembly includes a front housing and a scraper assembly. The front housing is composed of four front housing assemblies, each of which is 1 / 8 spherical. A scraper assembly is installed on the outer curved surface of each front housing assembly. Four front housing hydraulic cylinders are installed on the curved surface of the front hemisphere support. The front housing hydraulic cylinder push rod is connected to the inner curved surface of the corresponding front housing assembly. The front housing hydraulic cylinder drives the front housing assembly to move closer to or away from the front hemisphere support through the front housing hydraulic cylinder push rod.

[0008] The telescopic body assembly includes a rear housing and wheels. The rear housing is composed of four rear housing assemblies, each rear housing assembly being 1 / 8 spherical in shape. Each rear housing assembly is provided with a set of wheels. Each set of wheels is mounted on the drive shaft of a corresponding drive motor. Each drive motor drives the corresponding set of wheels to rotate through its drive shaft. The drive motor is fixed to the rear housing assembly.

[0009] Four rear housing hydraulic cylinders are mounted on the curved surface of the rear hemisphere support, and the push rod of each rear housing hydraulic cylinder is connected to the drive motor on the corresponding rear housing assembly.

[0010] Each set of wheels consists of two wheels, and the drive shaft passes through the drive motor. The two ends of the drive shaft are respectively connected to the two wheels in the corresponding set of wheels.

[0011] Each set of wheels is installed in the wheel hole of the corresponding rear housing assembly, the rotary motor is installed in the rotary motor mounting hole in the middle of the rear hemisphere support plane, and the front end of the rotary motor shaft is installed in the support hole in the middle of the front hemisphere support plane.

[0012] The scraper assembly includes a scraper base and a scraper. The scraper base is disposed on the outer curved surface of the front housing assembly, and the scraper is mounted on the scraper base.

[0013] The outer curved surface of the front housing assembly is formed by three arcs. One end of the scraper base is located at the intersection of two of the arcs, and the other end extends through the outer curved surface of the front housing assembly to the midpoint of the other arc.

[0014] The advantages of this invention are:

[0015] (1) The rotatable scraper assembly can clean concrete residue inside the delivery pipe;

[0016] (2) The spherical cleaning machine can clean the concrete in straight pipes as well as the concrete in curved pipes;

[0017] (3) Compared with the traditional method of water washing and air washing, it can save water resources and reduce the harm of high-pressure gas to construction personnel, and is safer and more reliable;

[0018] (4) The telescopic body assembly and telescopic scraper assembly can be extended and retracted by a hydraulic cylinder, which can adapt to cleaning conveying pipes of different diameters. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the present invention;

[0020] Figure 2 for Figure 1 Cross-sectional view of AA in the middle;

[0021] Figure 3 for Figure 2 Cross-sectional view of BB in the middle;

[0022] Figure 4 for Figure 2 Cross-sectional view of CC in the middle;

[0023] Figure 5 for Figure 2 Cross-sectional view of DD in the middle;

[0024] Figure 6 This is a schematic diagram of the variable size method of the present invention;

[0025] Figure 7 This is a schematic diagram illustrating the operation of the present invention;

[0026] like Figures 1-7 As shown in the figure, the markings represent:

[0027] a. Spherical cleaning machine, b. Delivery pipeline, c. Concrete, d. Cleaning direction, e. High-rise building;

[0028] 1. Telescopic scraper assembly; 2. Support ball assembly; 3. Telescopic body assembly;

[0029] 11. Scraper assembly; 111. Scraper; 112. Scraper base; 12. Front housing; 13. Front housing hydraulic cylinder; 14. Front housing hydraulic cylinder push rod;

[0030] 21. Front hemispherical support; 22. Rear hemispherical support; 23. Support hole; 24. Rotary motor mounting hole; 25. Rotary motor; 26. Rotary motor shaft;

[0031] 31. Rear housing, 32. Wheel hole, 33. Wheel, 34. Drive motor, 35. Drive shaft, 36. Rear housing hydraulic cylinder, 37. Rear housing hydraulic cylinder push rod. Detailed Implementation

[0032] The features and other related features of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate understanding by those skilled in the art:

[0033] Example: Figures 1-7 As shown, this embodiment relates to a spherical cleaning machine for variable-size pumped concrete conveying pipelines. The spherical cleaning machine a can be used to clean concrete c inside conveying pipelines b (straight and curved pipelines) of different inner diameters. The conveying pipeline b is located next to a high-rise building e, and the cleaning direction d of the spherical cleaning machine a is from top to bottom. The spherical cleaning machine a mainly includes a telescopic scraper assembly 1, a support ball assembly 2, and a telescopic body assembly 3. The support ball assembly 2 includes a front hemispherical support 21 and a rear hemispherical support 22. A rotary motor 25 is installed in the center of the plane of the rear hemispherical support 22. The rotary motor shaft 26 of the rotary motor 25 is connected to the plane of the front hemispherical support 21. The rotary motor 25 drives the front hemispherical support 21 to rotate through its rotary motor shaft 26. In this embodiment, the rotary motor 25 is installed in a rotary motor mounting hole 24 in the center of the plane of the rear hemispherical support 22, and the front end of the rotary motor shaft 26 is installed in a support hole 23 in the center of the plane of the front hemispherical support 21.

[0034] like Figures 1-5 As shown, the telescopic scraper assembly 1 includes a front housing 12 and a scraper assembly 11. The front housing 12 is composed of four front housing assemblies, each of which is 1 / 8 spherical. A scraper assembly 11 is mounted on the outer curved surface of each front housing assembly. Four front housing hydraulic cylinders 13 are mounted on the curved surface of the front hemispherical support 21. The front housing hydraulic cylinder push rod 14 of each front housing hydraulic cylinder 13 is connected to the inner curved surface of the corresponding front housing assembly. The front housing hydraulic cylinder 13 drives the front housing assembly to move closer to or away from the front hemispherical support 21 through the front housing hydraulic cylinder push rod 14 to adjust the diameter of the telescopic scraper assembly 1. The four front housing hydraulic cylinders 13 work synchronously.

[0035] like Figures 1-5As shown, the scraper assembly 11 includes a scraper base 112 and a scraper 111. The scraper base 112 is disposed on the outer curved surface of the front housing assembly, and the scraper 111 is mounted on the scraper base 112. In this embodiment, the outer curved surface of the front housing assembly is formed by three arcs. One end of the scraper base 112 is located at the intersection of two of the arcs, and the other end extends through the outer curved surface of the front housing assembly to the midpoint of another arc. The four scraper assemblies 11 are arranged in a windmill shape, which is beneficial for the scraper assemblies 11 to clean the concrete c in the conveying pipe b.

[0036] like Figures 1-5 As shown, the telescopic body assembly 3 includes a rear housing 31 and wheels 33. The rear housing 31 is composed of four rear housing components, each being a 1 / 8 sphere. Each rear housing component has a set of wheels 33 installed in its wheel hole 32. Each set of wheels 33 is mounted on the drive shaft 35 of a corresponding drive motor 34. Each drive motor 34 drives the corresponding set of wheels 33 to rotate via its drive shaft 35. The drive motor 34 is fixed to the rear housing assembly. In this embodiment, the four drive motors 34 operate synchronously. Each set of wheels 33 consists of two wheels 33. The drive shaft 35 passes through the drive motor 34, and its two ends are connected to two wheels 33 in the corresponding set of wheels 33, respectively. Four rear shell hydraulic cylinders 36 are mounted on the curved surface of the rear hemisphere support 22. The rear shell hydraulic cylinder push rod 37 of each rear shell hydraulic cylinder 36 is connected to the drive motor 34 on the corresponding rear shell assembly. The rear shell hydraulic cylinder 36 drives the rear shell assembly to move closer to or away from the rear hemisphere support 22 through the rear shell hydraulic cylinder push rod 37 to adjust the diameter of the telescopic body assembly 3. The four rear shell hydraulic cylinders 36 work synchronously.

[0037] like Figures 1-7 As shown, this embodiment also has the following working method:

[0038] When the spherical cleaning machine a needs to adapt to conveying pipes b with different inner diameters, the front shell hydraulic cylinder 13 and the rear shell hydraulic cylinder 36 are activated simultaneously, so that the front shell assembly moves closer to or further away from the front hemispherical support 21, and the rear shell assembly moves closer to or further away from the rear hemispherical support 22, until the wheel 12 and the scraper 111 are in contact with the inner wall of the conveying pipe b; when the spherical cleaning machine a needs to clean the conveying pipe b, the drive motor 34 and the rotary motor 25 are activated simultaneously, so that the spherical cleaning machine a cleans the concrete in the conveying pipe b from top to bottom.

[0039] The beneficial technical effects of this embodiment are as follows:

[0040] (1) The rotatable scraper assembly can clean concrete residue inside the delivery pipe;

[0041] (2) The spherical cleaning machine can clean the concrete in straight pipes as well as the concrete in curved pipes;

[0042] (3) Compared with the traditional method of water washing and air washing, it can save water resources and reduce the harm of high-pressure gas to construction personnel, and is safer and more reliable;

[0043] (4) The telescopic body assembly and telescopic scraper assembly can be extended and retracted by a hydraulic cylinder, which can adapt to cleaning conveying pipes of different diameters.

[0044] Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art will recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, and therefore will not be elaborated here.

Claims

1. A spherical cleaning machine for variable-size pumped concrete conveying pipelines, used for cleaning conveying pipelines, characterized in that: The spherical cleaning machine includes a telescopic scraper assembly, a support ball assembly, and a telescopic body assembly. The support ball assembly includes a front hemisphere support and a rear hemisphere support. A rotary motor is installed in the center of the plane of the rear hemisphere support. The rotary motor shaft is connected to the plane of the front hemisphere support. The rotary motor drives the front hemisphere support to rotate through the rotary motor shaft. The telescopic scraper assembly includes a front housing and a scraper assembly. The front housing is composed of four front housing assemblies. Each front housing assembly is 1 / 8 spherical. A scraper assembly is installed on the outer curved surface of each front housing assembly. Four front housing hydraulic cylinders are installed on the curved surface of the front hemisphere support. The front housing hydraulic cylinder push rod of each front housing hydraulic cylinder is connected to the inner curved surface of the corresponding front housing assembly. The front housing hydraulic cylinder drives the front housing assembly to move closer to or away from the front hemisphere support through the front housing hydraulic cylinder push rod. The telescopic body assembly includes a rear shell and wheels. The rear shell is composed of four rear shell assemblies, each of which is 1 / 8 spherical in shape. Each rear shell assembly is provided with a set of wheels. Each set of wheels is mounted on the drive shaft of a corresponding drive motor. Each drive motor drives the corresponding set of wheels to rotate through its drive shaft. The drive motor is fixed to the rear shell assembly. The scraper assembly includes a scraper base and a scraper, the scraper base is disposed on the outer curved surface of the front housing assembly, and the scraper is mounted on the scraper base; The outer curved surface of the front housing assembly is formed by three arcs. One end of the scraper base is located at the intersection of two of the arcs, and the other end extends through the outer curved surface of the front housing assembly to the midpoint of the other arc.

2. The spherical cleaning machine for variable-size pumped concrete conveying pipelines as described in claim 1, characterized in that: Four rear housing hydraulic cylinders are mounted on the curved surface of the rear hemisphere support, and the push rod of each rear housing hydraulic cylinder is connected to the drive motor on the corresponding rear housing assembly.

3. The spherical cleaning machine for variable-size pumped concrete conveying pipelines as described in claim 1, characterized in that: Each set of wheels consists of two wheels, and the drive shaft passes through the drive motor. The two ends of the drive shaft are respectively connected to the two wheels in the corresponding set of wheels.

4. A spherical cleaning machine for variable-size pumped concrete conveying pipelines as described in claim 1, characterized in that: Each set of wheels is installed in the wheel hole of the corresponding rear housing assembly, the rotary motor is installed in the rotary motor mounting hole in the middle of the rear hemisphere support plane, and the front end of the rotary motor shaft is installed in the support hole in the middle of the front hemisphere support plane.

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