Diameter-variable petroleum pipeline cleaning robot

Abstract

The utility model relates to a variable-diameter petroleum pipeline cleaning robot which comprises a variable-diameter scraper assembly and a climbing supporting and cleaning assembly. The variable-diameter scraper blade assembly comprises a motor, an output shaft of the motor is upward and connected with a rotating plate, an air cylinder is arranged in the center of the top face of the rotating plate, a plurality of scraper blades are arranged on the rotating plate around the air cylinder, and the climbing supporting and cleaning assembly comprises a supporting frame, a water spraying tank and four crawler belt sets. The variable-diameter petroleum pipeline cleaning robot has the advantages that the variable-diameter petroleum pipeline cleaning robot can be used for cleaning petroleum pipelines; the scraping plate is matched with petroleum pipelines with different pipe diameters through cooperation of the air cylinder, the connecting rod and the sliding groove; the crawler walking device moves in the pipeline; the crawler walking device is adaptive to petroleum pipelines with different pipe diameters through the cooperation of the parallel four-bar mechanism and the spring; cleaning and impurity removal are performed through an integrated water spraying tank and a brush; the cleaning efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pipeline cleaning, in particular to a diameter-variable oil pipeline cleaning robot. Background Art

[0002] Oil pipeline cleaning is an important part of ensuring smooth oil transportation and normal operation of the pipeline system. During the transportation process, oil will form attachments such as oil stains, dirt and impurities on the inner wall of the pipeline. These attachments will gradually accumulate and affect the transportation efficiency of the pipeline, and even cause pipeline blockage. Therefore, it is very necessary to clean the oil pipeline regularly.

[0003] Generally, there are high-pressure water cleaning, mechanical cleaning, gas cleaning, chemical cleaning and other methods. Different oil pipelines have different thicknesses. When cleaning pipelines of different thicknesses, it is necessary to consider their internal space, the adaptability of cleaning equipment and the cleaning effect. Generally, several methods are combined for cleaning. Generally, chemical cleaning agents are used first to soften or dissolve the dirt in the pipeline, and then high-pressure water jets or mechanical cleaning equipment are used for further removal.

[0004] At present, there is a lack of an oil pipeline cleaning machine that integrates various cleaning methods and can clean pipelines of different thicknesses on the market. To this end, a variable diameter oil pipeline cleaning robot is designed to solve the above problems. Summary of the invention

[0005] In order to overcome the above shortcomings, the utility model provides a variable diameter oil pipeline cleaning robot, including a variable diameter scraper assembly and a climbing support cleaning assembly;

[0006] The variable diameter scraper assembly comprises a motor, the output shaft of the motor is upward and connected to a rotating plate, a cylinder is arranged at the center of the top surface of the rotating plate, a plurality of scrapers are arranged around the rotating plate around the cylinder, and each scraper is connected to the outer side of the telescopic rod of the cylinder through a set of connecting rods; the connecting rods play the role of limiting and telescopic;

[0007] The climbing support cleaning assembly includes a support frame, a water spray box and four groups of crawler tracks; the support frame is a cubic frame formed by a top support plate at the top, four support rods in the middle and a bottom support plate at the bottom; the motor is fixed on the top surface of the top support plate, the water spray box is located on the top surface of the bottom support plate, and each surface of the outer periphery of the water spray box is provided with a plurality of nozzles arranged at different heights; the water spray box has a built-in water pump that can spray water outward through the nozzle; an annular brush is provided outside the bottom support plate;

[0008] A set of crawler groups is provided on each support rod; each crawler group includes a crawler traveling device, an upper slider, a lower slider, a fixed block, an upper spring and a lower spring; the upper spring is sleeved on the upper part of the support rod, and the lower spring is sleeved on the lower part of the support rod; the fixed block is fixed in the middle of the support rod; the upper slider is sleeved on the support rod, and the upper slider is located between the fixed block and the upper spring, the lower slider is sleeved on the support rod, and the lower slider is located between the fixed block and the lower spring;

[0009] The upper slider is hinged with an upper long rod, the other end of the upper long rod is hinged to the outside of the crawler traveling device, and the middle of the upper long rod is hinged with an upper short rod, and the other end of the upper short rod is hinged to the upper part of the fixed block;

[0010] The lower slider is hinged with a lower long rod, the other end of the lower long rod is hinged to the outside of the crawler traveling device, and the middle of the lower long rod is hinged with a lower short rod, and the other end of the lower short rod is hinged to the lower part of the fixed block;

[0011] Preferably, the connecting rod includes a first rod, a second rod and a third rod; one end of the first rod is hinged to the upper part of the lug on the outside of the telescopic rod of the cylinder, the other end of the first rod is hinged to the top end of the second rod, the middle and lower part of the second rod is hinged to one end of the third rod, and the other end of the third rod is hinged to the lower part of the lug on the outside of the telescopic rod of the cylinder. A chute is provided on the top surface of the rotating plate, and the sliding direction of the chute is perpendicular to the cylinder, and the lower part of the second rod is inserted into the chute for sliding and limiting.

[0012] Preferably, a traveling motor is installed on each crawler wheel of the crawler traveling device. When the traveling motor is started, the crawler wheel is driven through the combination of spur gears and bevel gears.

[0013] Furthermore, eight nozzles are provided.

[0014] Preferably, four scrapers are provided.

[0015] Preferably, the scraper is designed in an arc shape.

[0016] Preferably, the water spraying tank is a high-pressure water spraying tank.

[0017] The beneficial effects of the present utility model are as follows:

[0018] The variable-diameter oil pipeline cleaning robot of the present utility model has the following advantages;

[0019] 1. The scraper is adapted to oil pipelines with different pipe diameters through the cooperation of the cylinder, the connecting rod and the chute;

[0020] 2. It moves in the pipeline through the crawler traveling device; the crawler traveling device is adapted to oil pipelines with different pipe diameters through the cooperation of the parallelogram mechanism and the spring;

[0021] 3. Clean and remove impurities by integrating a water spraying tank and a brush; high cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional view of the variable-diameter oil pipeline cleaning robot according to the present utility model;

[0023] Figure 2 A front view of the variable-diameter oil pipeline cleaning robot according to the present utility model;

[0024] Figure 3 A three-dimensional view of the variable-diameter scraper assembly according to the present utility model;

[0025] Figure 4 A three-dimensional view of the climbing support cleaning assembly according to the present utility model;

[0026] Figure 5 A three-dimensional view of the water spraying tank, the brush and the support group;

[0027] Figure 6 A connection schematic diagram of a single crawler group and a support rod;

[0028] Figure 7 A three-dimensional view of a single crawler group;

[0029] Figure 8 A three-dimensional view of the water spraying tank;

[0030] Wherein:

[0031] 1 - rotating plate; 2 - cylinder; 3 - scraper; 4 - top support plate; 5 - nozzle; 6 - crawler; 7 - water spraying tank; 8 - bottom support plate; 9 - annular brush; 10 - motor; 11 - upper spring; 12 - lower spring; 13 - chute; 14 - second rod; 15 - first rod; 16 - third rod; 17 - support rod; 18 - upper slider; 19 - fixing block; 20 - lower slider; 21 - upper long rod; 22 - upper short rod; 23 - lower short rod; 24 - lower long rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] As Figure 1 and Figure 2 shown, the variable-diameter oil pipeline cleaning robot includes a variable-diameter scraper assembly and a climbing support cleaning assembly;

[0033] As Figure 3 shown, the variable-diameter scraper assembly includes a motor 10, the output shaft of the motor 10 is upward and connected to a rotating plate 1, a cylinder 2 is arranged at the center of the top surface of the rotating plate 1, and a plurality of scrapers 3 are arranged around the cylinder 2, and each scraper 3 is connected to the outside of the telescopic rod of the cylinder 2 through a set of connecting rods; the connecting rods play a role in limiting and telescoping;

[0034] Four scraping plates 3 are provided; the scraping plates 3 are designed to be arc-shaped.

[0035] The connecting rod includes a first rod 15, a second rod 14 and a third rod 16; one end of the first rod 15 is hinged to the upper part of the ear on the outer side of the telescopic rod of the cylinder 2, the other end of the first rod 15 is hinged to the top end of the second rod 14, the middle and lower part of the second rod 14 is hinged to one end of the third rod 16, and the other end of the third rod 16 is hinged to the lower part of the ear on the outer side of the telescopic rod of the cylinder 2. A chute 13 is provided on the top surface of the rotating plate 1, and the sliding direction of the chute 13 is perpendicular to the cylinder 2. The lower part of the second rod 14 is inserted into the chute 13 for sliding and limiting.

[0036] As Figure 4 and Figure 5 shown, the climbing support cleaning assembly includes a support frame, a water spraying tank 7 and four groups of crawler groups; the support frame is a cubic frame formed by a top support plate 4 at the upper part, four support rods 17 in the middle part and a bottom support plate 8 at the lower part; the motor 10 is fixed on the top surface of the top support plate 4, and the water spraying tank 7 is located on the top surface of the bottom support plate 8. As Figure 8 shown, a number of nozzles 5 arranged at different heights are provided on each surface of the outer periphery of the water spraying tank 7; eight nozzles 5 are provided; a water pump is built in the water spraying tank 7 and can spray water outward through the nozzles 5; a ring brush 9 is provided outside the bottom support plate 8; the water spraying tank can be filled with water or a cleaning agent;

[0037] As Figure 6 shown, a set of crawler group is provided on each support rod 17; the crawler group includes a crawler traveling device 6, an upper slider 18, a lower slider 20, a fixing block 19, an upper spring 11 and a lower spring 12; the upper spring 11 is sleeved on the upper part of the support rod 17, and the lower spring 12 is sleeved on the lower part of the support rod 17; the fixing block 19 is fixed in the middle of the support rod 17; the upper slider 18 is sleeved on the support rod 17, and the upper slider 18 is located between the fixing block 19 and the upper spring 11. The lower slider 20 is sleeved on the support rod 17, and the lower slider 20 is located between the fixing block 19 and the lower spring 12;

[0038] As Figure 7 shown, the upper slider 18 is hinged with an upper long rod 21, the other end of the upper long rod 21 is hinged to the outside of the crawler traveling device 6, the middle part of the upper long rod 21 is hinged with an upper short rod 22, and the other end of the upper short rod 22 is hinged to the upper part of the fixing block 19; the lower slider 20 is hinged with a lower long rod 24, the other end of the lower long rod 24 is hinged to the outside of the crawler traveling device 6, the middle part of the lower long rod 24 is hinged with a lower short rod 23, and the other end of the lower short rod 23 is hinged to the lower part of the fixing block 19;

[0039] A traveling motor is installed on each crawler wheel of the crawler traveling device 6. When the traveling motor is started, the crawler wheel is driven through the combination of spur gears and bevel gears.

[0040] The water spraying tank 7 is a high-pressure water spraying tank.

[0041] Usage method:

[0042] A variable-diameter oil pipeline cleaning robot. The variable-diameter scraper assembly located at the head extends into the pipeline to be cleaned. Through the up-and-down movement of the cylinder 2 and the cooperation of the connecting rod and the chute 13, the outward expansion or inward contraction of the four scrapers 3 is realized, that is, the variable diameter of the circular area enclosed by the peripheries of the four scrapers 3 is realized. The scraper 3 is designed to be arc-shaped so that it closely adheres to the wall surface. The lower end of the cylinder 2 is connected with a motor 10. The motor 10 drives the rotating plate 1 to rotate, so as to scrape off the oil stains on the inner wall of the oil pipeline through the scraper 3.

[0043] The cooperation of the cylinder, the connecting rod and the chute:

[0044] When the telescopic rod of the cylinder 2 rises, it drives the first rod 15 and the third rod 16 to rise. The second rod 14 is hinged to the first rod 15 and the third rod 16 respectively. The second rod 14 will move along the chute 13 towards the cylinder 2. The second rod 14 drives the scraper 3 to move inward, that is, towards the direction close to the cylinder 2. The four scrapers move inward at the same time, making the diameter of the circular area enclosed by the peripheries of the four scrapers 3 smaller, suitable for a relatively thin oil pipeline.

[0045] When the telescopic rod of the cylinder 2 descends, it drives the first rod 15 and the third rod 16 to descend. The second rod 14 is hinged to the first rod 15 and the third rod 16 respectively. The second rod 14 will move along the chute 13 outward, that is, away from the cylinder 2. The second rod 14 drives the scraper 3 to move inward, that is, towards the direction away from the cylinder 2. The four scrapers move outward at the same time, making the diameter of the circular area enclosed by the peripheries of the four scrapers 3 larger, suitable for a relatively thick oil pipeline.

[0046] The crawler traveling device 6 can adapt to the change of pipe diameter. Through the combined design of the parallelogram mechanism and the spring, the variable diameter of the crawler traveling device is realized. When entering a thin pipe, the connecting rod is compressed, the spring is compressed and gives pressure, so as to tension the crawler device to closely adhere to the wall surface; when entering a thick pipe, the connecting rod is compressed, the spring is compressed and gives pressure, so as to tension the crawler device to closely adhere to the wall surface.

[0047] Cooperation of parallelogram linkage and spring: The parallelogram linkage consists of an upper long rod 21, an upper short rod 22, a lower short rod 23, and a lower long rod 24. When entering a thin pipe, the upper slider 18 compresses the upper spring 11 upward, and the lower slider 20 compresses the lower spring 12 downward. Each of the crawler traveling devices 6 approaches the support rod 17, suitable for an oil pipeline with a small diameter. When entering a thick pipe, the upper slider 18 moves downward and approaches the fixed block 19, the upper spring 11 relatively expands, the lower slider 20 moves upward and approaches the fixed block 19, the lower spring 12 relatively expands, and each of the crawler traveling devices 6 moves away from the support rod 17, suitable for an oil pipeline with a small diameter.

[0048] The motor 10 drives the rotating plate 1 to rotate, and the rotating plate 1 drives the four scraping plates 3 to rotate, and then the sundries on the inner wall of the oil pipeline can be scraped off.

[0049] At this time, through the crawler traveling device 6, it can move along the pipeline all the time while scraping.

[0050] Meanwhile, water or cleaning liquid can be pumped out from the water spraying tank 7 and sprayed out from the nozzle 5 to wash away the impurities. The brush can sweep the impurities away to dredge the pipeline.

[0051] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0052] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0053] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. Variable diameter oil pipeline cleaning robot, characterized in that: It includes a variable diameter scraper assembly and a climbing support cleaning assembly; The variable diameter scraper assembly comprises a motor (10), the output shaft of the motor (10) is upwardly connected to a rotating plate (1), a cylinder (2) is arranged at the center of the top surface of the rotating plate (1), a plurality of scrapers (3) are arranged around the cylinder (2) on the rotating plate (1), and each scraper (3) is connected to the outer side of the telescopic rod of the cylinder (2) through a set of connecting rods; the connecting rods play the role of limiting and telescopic functions; The climbing support cleaning assembly comprises a support frame, a water spray box (7) and four groups of crawler tracks; the support frame is in the shape of a cubic frame formed by a top support plate (4) at the top, four support rods (17) in the middle and a bottom support plate (8) at the bottom; the motor (10) is fixed on the top surface of the top support plate (4); the water spray box (7) is located on the top surface of the bottom support plate (8); each surface of the outer periphery of the water spray box (7) is provided with a plurality of nozzles (5) arranged at different heights; the water spray box (7) has a built-in water pump that can spray water outward through the nozzles (5); and an annular brush (9) is provided outside the bottom support plate (8); A track assembly is provided on each support rod (17); the track assembly comprises a track walking device (6), an upper slider (18), a lower slider (20), a fixing block (19), an upper spring (11) and a lower spring (12); the upper spring (11) is sleeved on the upper part of the support rod (17), and the lower spring (12) is sleeved on the lower part of the support rod (17); the fixing block (19) is fixed to the middle part of the support rod (17); the upper slider (18) is sleeved on the support rod (17), and the upper slider (18) is located between the fixing block (19) and the upper spring (11); the lower slider (20) is sleeved on the support rod (17), and the lower slider (20) is located between the fixing block (19) and the lower spring (12); The upper slider (18) is hingedly connected to an upper long rod (21), the other end of which is hingedly connected to the outer side of the crawler walking device (6), the middle of the upper long rod (21) is hingedly connected to an upper short rod (22), the other end of which is hingedly connected to the upper part of the fixing block (19); The lower slider (20) is hinged with a lower long rod (24), the other end of which is hinged to the outside of the crawler walking device (6), the middle of the lower long rod (24) is hinged with a lower short rod (23), and the other end of which is hinged to the lower part of the fixing block (19).

2. The variable diameter oil pipeline cleaning robot according to claim 1, characterized in that: The connecting rod comprises a first rod (15), a second rod (14) and a third rod (16); one end of the first rod (15) is hinged to the upper part of the outer ear of the telescopic rod of the cylinder (2); the other end of the first rod (15) is hinged to the top of the second rod (14); the middle and lower part of the second rod (14) is hinged to one end of the third rod (16); the other end of the third rod (16) is hinged to the lower part of the outer ear of the telescopic rod of the cylinder (2); a sliding groove (13) is provided on the top surface of the rotating plate (1); the sliding direction of the sliding groove (13) is perpendicular to the cylinder (2); the lower part of the second rod (14) is inserted into the sliding groove (13) and can be slidably limited.

3. The variable diameter oil pipeline cleaning robot according to claim 1, characterized in that: The crawler wheels of the crawler walking device (6) are all equipped with walking motors. When the walking motors are started, the crawler wheels are driven through a combination of spur gears and bevel gears.

4. The variable diameter oil pipeline cleaning robot according to claim 1, characterized in that: The number of nozzles (5) is eight.

5. The variable diameter oil pipeline cleaning robot according to claim 3, characterized in that: Four scrapers (3) are provided.

6. The variable diameter oil pipeline cleaning robot according to claim 1, characterized in that: The scraper (3) is designed to be in an arc shape.

7. The variable diameter oil pipeline cleaning robot according to claim 6, characterized in that: The water spray box (7) is a high-pressure water spray box.

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