Steel pipe outer wall shot blasting synchronous moving trolley

Abstract

The utility model is suitable for the technical field of steel pipe shot blasting car, provides a kind of steel pipe outer wall shot blasting synchronous movement trolley, linkage mechanism is arranged, the rotary power of shot blasting device is directly converted into the driving power of walking mechanism.When the shot blasting device (shot blasting wheel) works, through the transmission of belt wheel system (fifth pulley, sixth pulley, fourth pulley, third pulley etc.), automatic driving walking mechanism uniform speed advances along the channel rail.This mechanical rigidity linkage ensures that shot blasting treatment and trolley movement are strictly synchronous, avoids the missing shot or excessive shot blasting caused by different speed.It directly and synchronously transmits the rotary power of shot blasting device to walking mechanism through linkage mechanism (belt wheel system transmission) when working, drives trolley to stably crawl along the channel rail laid beside steel pipe, so that continuous, uniform shot blasting treatment to steel pipe outer wall is realized without independent walking drive.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel pipe shot blasting vehicles, and particularly relates to a synchronous moving trolley for shot blasting the outer wall of steel pipes. Background Technology

[0002] Steel pipes, as a key structural material, are widely used in construction, oil and natural gas transportation, and other fields. To ensure that steel pipes are protected from environmental corrosion during use and to extend their service life, their outer walls must be shot-blasted to remove rust, thereby obtaining a clean surface with a certain degree of roughness and enhancing the adhesion of the anti-corrosion coating.

[0003] Existing shot blasting technologies for steel pipe exterior walls mainly take the following forms: First, fixed shot blasting machines, which typically have a dedicated shot blasting chamber where the steel pipe to be treated is transported for shot blasting. For large-diameter steel pipes, this type of equipment requires a huge shot blasting machine and chamber volume, resulting in a large footprint, high manufacturing costs, and a lack of flexibility, making it difficult to adapt to on-site construction or the processing needs of steel pipes of different specifications. Second, while some mobile shot blasting equipment exists, many rely on wall-climbing devices to carry the shot blaster along the steel pipe exterior. Without track constraints, these devices are prone to slippage during movement, causing the shot blasting trajectory to deviate, potentially resulting in missed areas or uneven treatment, severely affecting shot blasting quality and subsequent corrosion protection. Furthermore, in some existing equipment, the power source for the shot blaster and the equipment's movement drive are often independent systems, making the overall structure complex, energy-intensive, and difficult to ensure precise synchronization between shot blasting and movement speed, affecting the uniformity of treatment.

[0004] Therefore, there is an urgent need for a steel pipe external wall shot blasting equipment that is compact, mobile, adaptable to different pipe diameters, provides uniform shot blasting treatment, and has a high degree of automation. Utility Model Content

[0005] This utility model provides a synchronous moving trolley for shot blasting the outer wall of steel pipe, which aims to solve the problem that the power and walking drive of the current shot blasting machine are often independent systems, resulting in a complex overall structure and high energy consumption.

[0006] This utility model is implemented as follows: a synchronously moving trolley for shot blasting the outer wall of a steel pipe, comprising: Two I-beam rails; Two traveling mechanisms are respectively mounted on the two I-shaped tracks; A support platform is provided on the upper side of the two walking mechanisms; A frame mounted on top of the tray; A shot blasting device mounted on the frame for shot blasting steel pipes to be shot blasted. The linkage mechanism, which is set between the shot blasting device and the traveling mechanism, can drive the traveling mechanism to crawl on the I-beam track during the shot blasting process of the steel pipe to be blasted by the shot blasting device.

[0007] Preferably, the walking mechanism includes a U-shaped frame disposed on the outside of the I-shaped track, a plurality of rotating rollers are rotatably connected to the inside of the U-shaped frame, the rotating rollers are placed on the top of the I-shaped track, and a plurality of rollers are rotatably connected to both sides inside the U-shaped frame, the rollers are placed on the bottom of the recess of the I-shaped track.

[0008] Preferably, a first pulley and a second pulley are rotatably connected to one side wall of the U-shaped frame, and a first transmission belt is connected between the first pulley and the second pulley. Both the first pulley and the second pulley are coaxially fixed to two rollers on the inner side of the U-shaped frame.

[0009] Preferably, a tensioning component is provided on one side of the U-shaped frame. The tensioning component includes a movable cavity opened on the side wall of the U-shaped frame. A fixing block is fixedly connected to the upper port of the movable cavity. A lead screw is rotatably connected between the fixing block and the bottom of the movable cavity. A movable column is slidably sleeved inside the movable cavity. The lead screw is threaded through the inside of the movable column. A tensioning wheel is rotatably connected to the outer wall of the movable column.

[0010] Preferably, the shot blasting device includes a motor fixedly mounted on the frame, a shot blasting wheel fixedly mounted on the outer wall of the output shaft of the motor, a bracket fixedly connected to the side wall of the support platform, and one end of the output shaft rotatably connected to the bracket.

[0011] Preferably, the linkage mechanism includes a fifth pulley fixedly connected to the outer wall of the output shaft and a sixth pulley rotatably connected to the outside of the frame via a shaft, and a third transmission belt is drivingly connected between the sixth pulley and the fifth pulley.

[0012] Preferably, the linkage mechanism further includes a third pulley fixedly connected to the second pulley, a fourth pulley fixedly connected to the outer wall of the sixth pulley, and a second transmission belt drivingly connecting the fourth pulley and the third pulley.

[0013] Preferably, the fifth pulley is smaller than the sixth pulley, and the fourth pulley is smaller than the third pulley.

[0014] Compared with related technologies, the synchronous moving trolley for shot blasting the outer wall of steel pipe provided by this utility model has the following beneficial effects: 1. Compact Structure and Mobility: This invention integrates the shot blasting device, walking mechanism, and linkage mechanism onto a trolley that can move on an I-beam track, forming a complete mobile shot blasting unit. This design eliminates the limitations of traditional large fixed shot blasting chambers, resulting in a compact overall structure, significantly reduced footprint, and easy relocation and deployment. It is particularly suitable for on-site operations or applications with limited space.

[0015] 2. Precise Synchronous Motion and Uniform Processing: This invention features a linkage mechanism that directly converts the rotational power of the shot blasting device into the driving power of the traveling mechanism. When the shot blasting device (shot blasting wheel) is working, the traveling mechanism is automatically driven to move forward at a uniform speed along the I-beam track through the transmission of the pulley system (fifth pulley, sixth pulley, fourth pulley, third pulley, etc.). This mechanical rigid linkage ensures strict synchronization between shot blasting and trolley movement, avoiding missed or excessive shot blasting due to speed asynchrony, thus guaranteeing the uniformity and consistency of shot blasting treatment on the outer wall of the steel pipe. By precisely designing the transmission ratio of the pulleys, the matching relationship between the speed of the shot blasting wheel and the speed of the trolley can be optimized to ensure the processing effect. The synchronous moving trolley for shot blasting the outer wall of the steel pipe in this invention mainly consists of an I-beam track, a traveling mechanism, a support platform, a frame, a shot blasting device, and a linkage mechanism. It directly and synchronously transmits the rotational power of the shot blasting device to the traveling mechanism through a linkage mechanism (belt pulley system transmission), driving the trolley to crawl stably along the I-shaped track laid next to the steel pipe, thereby achieving continuous and uniform shot blasting treatment of the outer wall of the steel pipe without the need for independent traveling drive. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the working structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 for Figure 3 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the linkage mechanism structure of this utility model.

[0017] In the diagram: 1. I-beam track; 2. Traveling mechanism; 21. U-shaped frame; 22. Rotary roller; 23. Roller; 24. First pulley; 25. Second pulley; 26. First transmission belt; 27. Tensioning component; 271. Tensioning wheel; 272. Moving column; 273. Lead screw; 274. Fixed block; 275. Moving cavity; 3. Support platform; 4. Steel pipe to be shot; 5. Linkage mechanism; 51. Third pulley; 52. Fourth pulley; 53. Second transmission belt; 54. Fifth pulley; 55. Third transmission belt; 56. Sixth pulley; 6. Shot blasting device; 61. Motor; 62. Output shaft; 63. Shot blasting wheel; 64. Support; 7. Frame. Detailed Implementation

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] Example 1 A preferred embodiment of the synchronous moving trolley for shot blasting the outer wall of a steel pipe provided by this utility model is as follows: Figures 1 to 5 As shown: A synchronous moving trolley for shot blasting the outer wall of a steel pipe includes two I-shaped tracks 1; two traveling mechanisms 2 respectively set on the two I-shaped tracks 1; a support platform 3 set on the upper side of the two traveling mechanisms 2; a frame 7 installed on the top of the support platform 3; a shot blasting device 6 installed on the frame 7 for shot blasting the steel pipe 4 to be shot blasted; and a linkage mechanism 5 set between the shot blasting device 6 and the traveling mechanisms 2, which can drive the traveling mechanisms 2 to crawl on the I-shaped tracks 1 during the shot blasting process of the steel pipe 4 to be shot blasted by the shot blasting device 6.

[0021] Specifically, the traveling mechanism 2 includes a U-shaped frame 21 disposed on the outside of the I-shaped track 1. Multiple rotating rollers 22 are rotatably connected to the inside of the U-shaped frame 21, and the rotating rollers 22 rest on the top of the I-shaped track 1. Multiple rollers 23 are rotatably connected to both sides inside the U-shaped frame 21, and the rollers 23 rest on the bottom of the recessed area of ​​the I-shaped track 1. A first pulley 24 and a second pulley 25 are rotatably connected to one side wall of the U-shaped frame 21. A first transmission belt 26 is drivingly connected between the first pulley 24 and the second pulley 25. The first pulley 24 and the second pulley 25 are both coaxially fixed to the two rollers 23 on the inside of the U-shaped frame 21.

[0022] Furthermore, a tensioning component 27 is provided on one side of the U-shaped frame 21. The tensioning component 27 includes a movable cavity 275 opened on the side wall of the U-shaped frame 21. A fixing block 274 is fixedly connected to the upper port of the movable cavity 275. A lead screw 273 is rotatably connected between the fixing block 274 and the bottom of the movable cavity 275. A movable column 272 is slidably sleeved inside the movable cavity 275. The lead screw 273 is threaded through the inside of the movable column 272. A tensioning wheel 271 is rotatably connected to the outer wall of the movable column 272.

[0023] Specifically, the shot blasting device 6 includes a motor 61 fixedly mounted on a frame 7. A shot blasting wheel 63 is fixedly mounted on the outer wall of the output shaft 62 of the motor 61. A bracket 64 is fixedly connected to the side wall of the support platform 3, and one end of the output shaft 62 is rotatably connected to the bracket 64. In actual operation, the steel pipe 4 to be blasted can be supported and clamped by an external steel pipe support. A drive mechanism can be installed on the steel pipe support to rotate the clamped steel pipe 4. This operation is well known to those skilled in the art and will not be described in detail here. When the power is turned on and the motor 61 is started, the motor 61 drives the shot blasting wheel 63 to rotate through its output shaft 62, blasting the outer wall of the steel pipe 4.

[0024] Specifically, the linkage mechanism 5 includes a fifth pulley 54 fixedly connected to the outer wall of the output shaft 62 and a sixth pulley 56 rotatably connected to the outside of the frame 7 via a shaft. A third transmission belt 55 drives between the sixth pulley 56 and the fifth pulley 54. The linkage mechanism 5 also includes a third pulley 51 fixedly connected to the second pulley 25, and a fourth pulley 52 fixedly connected to the outer wall of the sixth pulley 56. A second transmission belt 53 drives between the fourth pulley 52 and the third pulley 51. The fifth pulley 54 is smaller than the sixth pulley 56, and the fourth pulley 52 is smaller than the third pulley 51.

[0025] It should be noted that the different sizes of the fifth pulley 54, the sixth pulley 56, the fourth pulley 52, and the third pulley 51 are actually designed to ensure a strict synchronization between the rotational speed of the shot blasting device 6 and the traveling speed of the trolley through the transmission ratio design of the pulley system. Specifically, by setting the diameter ratio of the fifth pulley 54 to the sixth pulley 56, and the diameter ratio of the fourth pulley 52 to the third pulley 51, the traveling mechanism 2 advances precisely a distance that corresponds to the working width of the shot blasting wheel 63 when the shot blasting wheel 63 rotates a specific number of times. This design ensures that the entire outer wall of the steel pipe 4 to be blasted is treated uniformly and continuously, avoiding missed or over-blasting. Those skilled in the art can determine the above transmission ratios through conventional calculations based on the required shot blasting quality and efficiency.

[0026] In this embodiment, during operation, firstly, the steel pipe 4 to be blasted is supported and clamped by an external steel pipe support. A drive mechanism can be installed on the steel pipe support to rotate the clamped steel pipe 4. This operation is well known to those skilled in the art and will not be described in detail here. Power is then turned on, and motor 61 is started. Motor 61 drives shot blasting wheel 63 to rotate via its output shaft 62, blasting the outer wall of the steel pipe 4. When output shaft 62 rotates, it drives the fifth pulley 54 fixed thereon to rotate. The fifth pulley 54 drives the sixth pulley 56 to rotate via the third transmission belt 55. Since the sixth pulley 56 is coaxially fixed with the fourth pulley 52, it synchronously drives the fourth pulley 52 to rotate, which in turn drives the third pulley 51 to rotate via the second transmission belt 53.

[0027] The rotating third pulley 51 drives the second pulley 25 to rotate. The second pulley 25 drives the first pulley 24 to rotate synchronously through the first transmission belt 26. The second pulley 25 and the first pulley 24 drive the roller 23 inside the U-shaped frame 21 to rotate, so that the roller 23 rolls inside the I-shaped track 1, driving the U-shaped frame 21 to move forward along the length of the I-shaped track 1. Then, the support platform 3 drives the frame 7 to move, so that the shot blasting device 6 can blast along the length of the steel pipe 4 to be blasted.

[0028] Furthermore, to ensure the stable and reliable power transmission of the drive belts between the fifth pulley 54, the sixth pulley 56, the fourth pulley 52, and the third pulley 51, and to prevent slippage, vibration, or detachment during operation, an appropriate belt tensioning mechanism should be considered. Given that belt tensioning technology is a common and mature technology in the field of mechanical transmission, those skilled in the art are familiar with various conventional tensioning schemes and can make conventional selections based on the actual spatial layout and stress conditions. For example, a design such as the tensioning component 27 in this patent can be adopted, with the tensioning component 27 installed on the side walls of the support 3 and the frame 7. Alternatively, an automatic spring tensioning mechanism can be used, where the spring force continuously applies force to the tensioning wheel to automatically compensate for belt elongation or loosening. A bolt-adjustable fixed tensioning mechanism can also be used, where the position of the tensioning wheel is changed by turning the bolt, thereby adjusting the belt tension, and a locking nut is used for fixation. In addition, installing a tensioning wheel on a bracket with an adjustment hole is also a common adjustable tensioning method. These tensioning structures and their specific installation methods are common knowledge in the relevant technical fields, so this book will not elaborate on their specific structures and connection relationships.

[0029] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0030] It should be understood that the disclosed apparatus can be implemented in other ways, as illustrated in the embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A synchronous moving trolley for shot blasting the outer wall of a steel pipe, characterized in that, include: Two I-shaped rails (1); Two traveling mechanisms (2) are respectively set on the two I-shaped tracks (1); Platforms (3) are provided on the upper side of the two walking mechanisms (2); The frame (7) is installed on top of the tray (3); A shot blasting device (6) is installed on the frame (7) for shot blasting the steel pipe (4) to be shot blasted. The linkage mechanism (5) located between the shot blasting device (6) and the walking mechanism (2) can drive the walking mechanism (2) to crawl on the I-shaped track (1) during the shot blasting process of the steel pipe (4) to be blasted by the shot blasting device (6).

2. The synchronous moving trolley for shot blasting the outer wall of a steel pipe as described in claim 1, characterized in that, The walking mechanism (2) includes a U-shaped frame (21) disposed on the outside of the I-shaped track (1). Multiple rollers (22) are rotatably connected to the inside of the U-shaped frame (21). The rollers (22) are placed on the top of the I-shaped track (1). Multiple rollers (23) are rotatably connected to both sides inside the U-shaped frame (21). The rollers (23) are placed at the bottom of the recess of the I-shaped track (1).

3. The synchronous moving trolley for shot blasting the outer wall of a steel pipe as described in claim 2, characterized in that, The U-shaped frame (21) has a first pulley (24) and a second pulley (25) rotatably connected to one side wall. A first transmission belt (26) is connected between the first pulley (24) and the second pulley (25). The first pulley (24) and the second pulley (25) are both coaxially fixed to two rollers (23) on the inner side of the U-shaped frame (21).

4. The synchronous moving trolley for shot blasting the outer wall of a steel pipe as described in claim 3, characterized in that, A tensioning component (27) is provided on one side of the U-shaped frame (21). The tensioning component (27) includes a movable cavity (275) opened on the side wall of the U-shaped frame (21). A fixing block (274) is fixedly connected to the upper port of the movable cavity (275). A lead screw (273) is rotatably connected between the fixing block (274) and the bottom of the movable cavity (275). A movable column (272) is slidably sleeved on the inner side of the movable cavity (275). The lead screw (273) is threaded through the inside of the movable column (272). A tensioning wheel (271) is rotatably connected to the outer wall of the movable column (272).

5. The synchronous moving trolley for shot blasting the outer wall of a steel pipe as described in claim 4, characterized in that, The shot blasting device (6) includes a motor (61) fixedly installed on the frame (7), a shot blasting wheel (63) fixedly installed on the outer wall of the output shaft (62) on the motor (61), a bracket (64) fixedly connected to the side wall of the support platform (3), and one end of the output shaft (62) rotatably connected to the bracket (64).

6. The synchronous moving trolley for shot blasting the outer wall of a steel pipe as described in claim 5, characterized in that, The linkage mechanism (5) includes a fifth pulley (54) fixedly connected to the outer wall of the output shaft (62) and a sixth pulley (56) rotatably connected to the outside of the frame (7) via a shaft. A third transmission belt (55) is connected between the sixth pulley (56) and the fifth pulley (54).

7. The synchronous moving trolley for shot blasting the outer wall of a steel pipe as described in claim 6, characterized in that, The linkage mechanism (5) further includes a third pulley (51) fixedly connected to the second pulley (25), a fourth pulley (52) fixedly connected to the outer wall of the sixth pulley (56), and a second transmission belt (53) drivingly connecting the fourth pulley (52) and the third pulley (51).

8. The synchronous moving trolley for shot blasting the outer wall of a steel pipe as described in claim 7, characterized in that, The fifth pulley (54) is smaller than the sixth pulley (56), and the fourth pulley (52) is smaller than the third pulley (51).

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