Pressure steel pipe surface treatment device

Abstract

The utility model provides a pressure steel pipe surface treatment device which comprises a bearing base, the bearing base is provided with a supporting assembly, and at least one side, in the first direction, of the supporting assembly is provided with a material blocking assembly; the inner wall shot blasting assembly comprises a bracket and a movable shot blasting machine; the support comprises a cantilever capable of extending into an inner hole of the pressure steel pipe, the movable shot blasting machine is hung on the cantilever, and a first discharging opening of the movable shot blasting machine can be close to the inner wall of the pressure steel pipe. And the outer wall shot blasting assembly is arranged on one side of the bearing base in the second direction, the outer wall shot blasting assembly comprises a tower outer wall shot blasting machine, and a second discharging opening of the tower outer wall shot blasting machine can be attached to the outer wall of the pressure steel pipe. Compared with a customized special inner wall surface treatment device, the pressure steel pipe surface treatment device provided by the utility model has the advantages that the movable shot blasting machine adopts finished product equipment, so that the cost is lower, automatic and connected operation can be realized, and the surface treatment efficiency and the treatment quality are favorably improved.

Description

Technical Field

[0001] The present application relates to the field of surface treatment technology, and in particular to a surface treatment device for a pressure steel pipe. Background Art

[0002] With the advancement of science and technology and the improvement of environmental protection requirements, the research on anti-corrosion surface pretreatment equipment for pressure steel pipes has paid more attention to the development direction of high efficiency, environmental protection and intelligence.

[0003] When performing surface treatment (e.g., rust removal) on penstocks with large inner and outer diameters, the outer surface can be treated using a large surface treatment device. For the inner surface, there are currently two methods: one is for an operator to manually treat the inner surface using a small, handheld surface treatment device. This method is not only time-consuming and labor-intensive, but also difficult to control treatment quality. The other method is to customize a dedicated inner surface treatment device based on the inner diameter of the penstock. While this method helps improve treatment quality, it requires a significant investment in the production of a dedicated inner surface treatment device. Utility Model Content

[0004] In view of this, the purpose of the present application is to propose a penstock surface treatment device to at least partially solve the problem of high cost of penstock inner wall surface treatment.

[0005] Based on the above-mentioned purpose, the present application provides a pressure steel pipe surface treatment device, comprising: a bearing base, the bearing base is provided with a supporting assembly for supporting the pressure steel pipe, the supporting assembly includes a driving unit for driving the pressure steel pipe to rotate around an axis; the supporting assembly is provided with a material blocking assembly on at least one side along a first direction; the first direction is the axial direction of the pressure steel pipe placed on the bearing base; an inner wall shot blasting assembly, comprising a bracket and a mobile shot blasting machine; the bracket includes a column fixed to one side of the bearing base along the first direction, and a cantilever connected to the column and capable of extending into the inner hole of the pressure steel pipe; the mobile shot blasting machine is hoisted on the cantilever, and the first discharge port of the mobile shot blasting machine can be close to the inner wall of the pressure steel pipe; an outer wall shot blasting assembly, arranged on one side of the bearing base along the second direction, the outer wall shot blasting assembly includes a tower outer wall shot blasting machine, and the second discharge port of the tower outer wall shot blasting machine can fit the outer wall of the pressure steel pipe; the second direction is perpendicular to the first direction.

[0006] Optionally, the pressure steel pipe includes a main body and reinforcing ribs, the main body is a tubular structure, and the reinforcing ribs are connected to the outer wall of the main body around the axis of the main body; the supporting base includes a limiting assembly connected to the support assembly, the limiting assembly includes at least one limiting unit, and the limiting unit abuts against the side wall of the reinforcing rib.

[0007] Optionally, the limiting assembly includes two limiting units, and the two limiting units are arranged on opposite sides of the reinforcing rib along the first direction.

[0008] Optionally, the limiting assembly includes a support plate connected to the supporting assembly, the limiting unit includes a limiting shaft connected to the support plate, the limiting shaft is rotatably connected to a limiting roller, and the limiting roller abuts against the reinforcing rib.

[0009] Optionally, the supporting base includes a first movable seat, the support assembly is connected to the top surface of the first movable seat, the material blocking assembly includes a material blocking plate vertically connected to the top surface of the first movable seat, the first discharge port is located at the bottom of the mobile shot blasting machine, and along the first direction, the orthographic projection of the first discharge port on the material blocking plate is located inside the material blocking plate.

[0010] Optionally, a plug-in column is provided at the bottom of the baffle plate, and the baffle plate is plugged into the first movable seat through the plug-in column.

[0011] Optionally, a material collecting hole penetrating in the vertical direction is provided on the top surface of the first movable seat, and a material collecting tray is detachably connected to the bottom of the first movable seat, and the material collecting tray is located below the material collecting hole.

[0012] Optionally, the mobile shot blasting machine is provided with a brush, and the brush is arranged around the first discharge port.

[0013] Optionally, the mobile shot blasting machine includes a support assembly, and the support assembly includes a support wheel for abutting against the inner wall of the pressure steel pipe.

[0014] Optionally, the pressure steel pipe surface treatment device also includes a first guide rail extending along the first direction, and a second guide rail extending along the second direction, and the second guide rail is located on at least one side of the first guide rail; the supporting base moves back and forth along the first guide rail, and the outer wall shot blasting assembly moves back and forth along the second guide rail; a lifting and hoisting device is hung on one end of the cantilever, and the mobile shot blasting machine is hoisted to the cantilever through the lifting and hoisting device.

[0015] From the above, it can be seen that the penstock surface treatment device provided by this application suspends the mobile shot blasting machine in the inner hole of the penstock through a bracket to perform surface treatment on the inner wall of the penstock. Compared with customized dedicated inner wall surface treatment devices, the mobile shot blasting machine is lower in cost due to the use of finished equipment, and can realize automated and connected operations, which helps to improve surface treatment efficiency and treatment quality. The mobile shot blasting machine can also be adjusted and optimized according to the material, specifications and surface condition of the penstock to ensure the consistency and stability of the treatment effect.

[0016] At the same time, the pressure steel pipe surface treatment device of the present application also blocks the shot materials that may be ejected outward through the material blocking assembly connected to the support assembly, thereby protecting the on-site operators and equipment and helping to reduce production risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in this application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are merely embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 This is a front view schematic diagram of a penstock surface treatment device according to an embodiment of the present application;

[0019] Figure 2 This is a partial front view schematic diagram of a penstock surface treatment device according to an embodiment of the present application;

[0020] Figure 3 This is a side view schematic diagram of a penstock surface treatment device according to an embodiment of the present application;

[0021] Figure 4 This is a schematic top view of a penstock surface treatment device according to an embodiment of the present application;

[0022] Figure 5 This is a schematic diagram of the first discharge port of the pressure steel pipe surface treatment device according to an embodiment of the present application.

[0023] Description of reference numerals:

[0024] 100, bearing base; 110, supporting assembly; 111, driving unit; 112, supporting bracket; 113, supporting roller; 120, material blocking assembly; 121, material blocking plate; 122, plug-in column; 130, limiting assembly; 131, limiting unit; 1311, limiting shaft; 1312, limiting roller; 132, supporting plate; 140, first movable seat; 141, material collecting hole; 150, material collecting tray;

[0025] 200, penstock; 210, outer wall; 220, inner wall; 230, reinforcement rib; 240, main body;

[0026] 300, inner wall shot blasting assembly; 310, bracket; 311, column; 312, cantilever; 320, mobile shot blasting machine; 321, first discharge port; 322, brush; 323, support assembly; 3231, support wheel; 3232, screw adjustment mechanism; 330, lifting and hoisting device;

[0027] 400, outer wall shot blasting assembly; 410, tower outer wall shot blasting machine; 411, second discharge port; 420, second movable seat;

[0028] 500, first guide rail; 600, second guide rail. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of this application more clear, this application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0030] It should be noted that the relative arrangement of the components, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

[0031] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0033] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] Surface pretreatment is a key step to ensure good adhesion between the anti-corrosion coating and the surface of the penstock 200. After surface pretreatment, impurities such as grease, dirt, scale, rust, etc. on the surface of the penstock 200 can be removed, and the surface roughness can be increased. This rough surface morphology provides more attachment points for the anti-corrosion coating, thereby significantly improving the adhesion of the coating. A coating with strong adhesion can better resist the erosion of the external environment on the penstock 200, reduce the maintenance and replacement frequency of the penstock 200, extend the service life of the penstock 200, and reduce overall operating costs. In addition, by reducing rework and waste caused by problems such as coating shedding and blistering, material costs can be further reduced.

[0035] In view of this, if Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The embodiment of the present application provides a surface treatment device for a pressure steel pipe, comprising: a bearing base 100, the bearing base 100 is provided with a supporting assembly 110 for supporting the pressure steel pipe 200, the supporting assembly 110 includes a driving unit 111 for driving the pressure steel pipe 200 to rotate around an axis; the supporting assembly 110 is arranged along a first direction (such as Figure 1 、 Figure 3 and Figure 4 A material blocking assembly 120 is provided on at least one side of the pressure steel pipe 200 placed on the supporting base 100; the first direction is the axial direction of the pressure steel pipe 200; the inner wall shot blasting assembly 300 includes a bracket 310 and a mobile shot blasting machine 320; the bracket 310 includes a column 311 fixed to one side of the supporting base 100 along the first direction, and a cantilever 312 connected to the column 311 and capable of extending into the inner hole of the pressure steel pipe 200; the mobile shot blasting machine 320 is hoisted on the cantilever 312, and the first discharge port 321 of the mobile shot blasting machine 320 can be close to the inner wall 220 of the pressure steel pipe 200; the outer wall shot blasting assembly 400, along the second direction (such as Figure 1 and Figure 4 The outer wall shot blasting assembly 400 includes a tower outer wall shot blasting machine 410, and the second discharge port 411 of the tower outer wall shot blasting machine 410 can fit the outer wall 210 of the pressure steel pipe 200; the second direction is perpendicular to the first direction.

[0036] For example, the support assembly 110 may include a U-shaped support bracket 112, in which a support roller 113 is mounted. The outer circumferential wall of the support roller 113 abuts against the outer wall 210 of the penstock 200. At this time, the axis of the support roller 113 and the axis of the penstock 200 are parallel to each other.

[0037] Exemplarily, two support assemblies 110 are provided and are symmetrically arranged along the axis of the penstock 200 .

[0038] Illustratively, the driving unit 111 may include a motor in transmission connection with the supporting roller 113 , for driving the supporting roller 113 to rotate, thereby driving the penstock 200 to rotate.

[0039] For example, the mobile shot blasting assembly can be a METTMANN mobile shot blasting machine. A mobile shot blasting machine is a small shot blasting machine used for surface treatment of flat surfaces (such as roads). The METTMANN mobile shot blasting machine is a downward shot blasting device, and the shot (or sand) can be recycled in the METTMANN mobile shot blasting machine. The metal shot strikes the surface to be treated, removing impurities, coatings, and sealing layers on the surface. The recovery unit in the METTMANN mobile shot blasting machine can suck and recover the ejected shot, and remove dust from the recovered shot to ensure that the shot is separated from the dust.

[0040] For example, the tower outer wall shot blasting machine 410 can be an HB-B type automatic shot blasting machine specifically designed for towers. The HB-B type automatic shot blasting machine specifically designed for towers utilizes a shot blasting and rust removal process and employs a high-efficiency motor-connected shot blasting wheel. The shot blasting wheel uses a rotating shaft for swing angle compensation, ensuring good contact between the shot blasting wheel and the outer wall 210 of the penstock 200. This enclosed shot blasting process uses a bucket elevator and an electric linear actuator to control the amount of shot material discharged from the shot storage box. Dust removal utilizes a centrifugal fan and a cartridge dust collector to meet on-site dust removal requirements. A PLC controls the operation of the equipment, ensuring that the HB-B type automatic shot blasting machine can quickly and cleanly complete the shot blasting and rust removal work on the outer wall 210 of the penstock 200.

[0041] When using the penstock surface treatment device of this embodiment to perform surface treatment (such as rust removal) on the penstock 200 , the penstock 200 is first placed on the supporting assembly 110 of the supporting base 100 , with the axis of the penstock 200 horizontal.

[0042] Afterwards, the supporting base 100 can be moved so that the mobile shot blasting machine 320, which is suspended on the cantilever 312, enters the inner hole of the penstock 200 and positions the first discharge port 321 close to the inner wall 220 of the penstock 200. Furthermore, the tower outer wall shot blasting assembly 400 is moved so that the second discharge port 411 of the tower outer wall shot blasting machine 410 is in contact with the outer wall 210 of the penstock 200.

[0043] After the mobile shot blasting machine 320 and the tower outer wall shot blasting machine 410 are placed in the preset position, they can be started at the same time, and both perform surface treatment on the inner wall 220 and the outer wall 210 of the penstock 200 at the same time. At the same time, under the driving action of the drive unit 111, the penstock 200 will rotate at a preset speed to continuously move the untreated area to the first discharge port 321 and the second discharge port 411. After the penstock 200 rotates one circle, the annular area corresponding to the first discharge port 321 in the inner wall 220 of the penstock 200 and the annular area corresponding to the second discharge port 411 in the outer wall 210 of the penstock 200 are both surface treated.

[0044] Thereafter, the supporting base 100 may be moved along the first direction to continue surface treatment on the portion of the penstock 200 that has not been surface treated.

[0045] It should be noted that although the inner diameter of the penstock 200 is relatively large, its inner wall 220 is still curved. A gap may exist between the first discharge port 321 and the inner wall 220 of the penstock 200. This gap is located on both sides of the first discharge port 321 along the first direction. A portion of the high-speed pellets ejected from the first discharge port 321 may be ejected through this gap. To prevent the ejected high-speed pellets from damaging external equipment or personnel, this embodiment includes a blocking assembly 120 on at least one side of the support assembly 110 along the first direction to block the ejected pellets and trap them within the support assembly 110.

[0046] The penstock surface treatment device provided in this embodiment suspends a mobile shot blasting machine 320 within the inner bore of a penstock 200 via a bracket 310 to perform surface treatment on the inner wall 220 of the penstock 200. Compared to custom-built, dedicated inner wall surface treatment devices, the mobile shot blasting machine 320 utilizes off-the-shelf equipment, resulting in lower costs. It also enables automated and connected operations, helping to improve surface treatment efficiency and quality. The mobile shot blasting machine 320 can also be adjusted and optimized based on the material, specifications, and surface condition of the penstock 200, ensuring consistent and stable treatment results.

[0047] At the same time, the pressure steel pipe surface treatment device of this embodiment also blocks the shot materials that may be ejected outward through the material blocking assembly 120 connected to the support assembly 110, thereby protecting the on-site operators and equipment and helping to reduce production risks.

[0048] In addition, compared to rust removal methods such as pickling, physical rust removal of the penstock 200 by the mobile shot blasting machine 320 and the tower outer wall shot blasting machine 410 can avoid the generation of wastewater and waste residue, and prevent pollution to the environment. At the same time, the above two shot blasting machines can also reduce the emission of pollutants such as dust and noise by precisely controlling the processing parameters, thereby protecting the ecological stability of the construction site and the surrounding environment. Using the penstock surface treatment device of this embodiment to perform surface treatment on the penstock 200 can improve the quality of the anti-corrosion coating of the penstock 200, improve construction efficiency, reduce costs, and protect the ecological environment, which has significant beneficial effects.

[0049] like Figure 1 and Figure 2 In some embodiments, the pressure steel pipe 200 includes a main body 240 and a reinforcing rib 230, the main body 240 is a tubular structure, and the reinforcing rib 230 is connected to the outer wall 210 of the main body 240 around the axis of the main body 240; the supporting base 100 includes a limiting assembly 130 connected to the supporting assembly 110, and the limiting assembly 130 includes at least one limiting unit 131, and the limiting unit 131 abuts against the side wall of the reinforcing rib 230.

[0050] Exemplarily, the limiting unit 131 may be a roller or a protruding block structure (such as a plastic block or a rubber block).

[0051] Illustratively, the inner wall 220 of the pressure steel pipe 200 is the inner hole wall of the main body 240 , and the outer wall 210 of the pressure steel pipe 200 includes at least the outer circumferential wall of the main body 240 .

[0052] When the penstock 200 is surface treated using the mobile shot blasting machine 320 and the tower outer wall shot blasting machine 410, the impact of the shot will cause the penstock 200 to vibrate and potentially cause the supporting base 100 to move in the first direction. When the penstock 200 moves along the supporting base 100 in the first direction, the areas corresponding to the first discharge port 321 and the second discharge port 411 will shift. After the penstock 200 rotates one circle, the surface-treated areas on the inner wall 220 and the outer wall 210 will not form a regular ring. Subsequently, manual secondary treatment will be required for the areas that have not been surface-treated due to the shift, which is not only time-consuming and labor-intensive, but also results in poor consistency in the surface treatment of the penstock 200.

[0053] To this end, in this embodiment, the limiting unit 131 abuts the sidewalls of the reinforcing ribs 230 on the outer wall 210 of the main body 240 to effectively limit the position of the penstock 200, preventing the penstock 200 from moving in the first direction during the surface treatment process. This helps ensure the consistency of the surface treatment of the penstock 200, improves the surface treatment quality, prevents the penstock 200 from needing to be repaired after a single surface treatment, helps shorten the construction period, and improves the surface treatment efficiency.

[0054] like Figure 3 In some embodiments, the limiting assembly 130 includes two limiting units 131 , and the two limiting units 131 are arranged on opposite sides of the reinforcing rib 230 along the first direction.

[0055] The limiting units 131 are provided on opposite sides of the reinforcing rib 230 , which can further strengthen the limiting effect on the pressure steel pipe 200 and prevent the pressure steel pipe 200 from moving in the forward and reverse directions along the first direction.

[0056] It should be noted that the pressure steel pipe 200 can be placed on the supporting base 100 by hoisting, that is, the reinforcement rib 230 of the pressure steel pipe 200 will be placed between the two limiting units 131 from above the limiting units 131 .

[0057] like Figure 2 and Figure 3 In some embodiments, the limiting assembly 130 includes a support plate 132 connected to the supporting assembly 110, and the limiting unit 131 includes a limiting shaft 1311 connected to the support plate 132. The limiting shaft 1311 is rotatably connected to a limiting roller 1312, and the limiting roller 1312 abuts against the reinforcing rib 230.

[0058] Illustratively, the outer circumferential wall of the limiting roller 1312 abuts against the side wall of the reinforcing rib 230 .

[0059] Exemplarily, the limiting roller 1312 may be a plastic roller or a rubber roller.

[0060] For example, the radial direction of the limiting roller 1312 may be parallel to the tangent line of the outer wall 210 of the main body 240 .

[0061] Illustratively, the support plate 132 may be welded to the support bracket 112 of the support assembly 110 , and the limiting rotation shaft 1311 may be welded to the support plate 132 .

[0062] When the pressure steel pipe 200 rotates, the limiting roller 1312 abutting against the reinforcing rib 230 can also rotate accordingly. While the limiting roller 1312 limits the pressure steel pipe 200, it can also ensure that the friction between the limiting roller 1312 and the reinforcing rib 230 is small, ensuring that the limiting unit 131 does not hinder the rotation of the pressure steel pipe 200.

[0063] like Figure 1 and Figure 3 In some embodiments, the supporting base 100 includes a first movable seat 140, the support assembly 110 is connected to the top surface of the first movable seat 140, the material blocking assembly 120 includes a material blocking plate 121 vertically connected to the top surface of the first movable seat 140, and the first discharge port 321 is located at the bottom of the mobile shot blasting machine 320. Along the first direction, the positive projection of the first discharge port 321 on the material blocking plate 121 is located inside the material blocking plate 121.

[0064] Exemplarily, the blocking plate 121 may be a rigid plate or a flexible plate.

[0065] The vertical setting of the baffle plate 121 can increase its blocking area of ​​the first discharge port 321, ensuring that the baffle plate 121 can fully block the gap on one side of the first discharge port 321, and thus can effectively intercept the pellets ejected from the gap.

[0066] like Figure 1 and Figure 3 In some embodiments, a plug-in column 122 is provided at the bottom of the baffle plate 121 , and the baffle plate 121 is plugged into the first movable seat 140 through the plug-in column 122 .

[0067] In this embodiment, the baffle plate 121 is designed to be detachably connected to the first movable seat 140 through the plug-in column 122. When loading or removing the pressure steel pipe 200 onto the supporting base 100, the baffle plate 121 can be removed from the first movable seat 140 to prevent the pressure steel pipe 200 and the baffle plate 121 from colliding.

[0068] like Figure 1 、 Figure 3 and Figure 4 In some embodiments, a material collecting hole 141 extending vertically is provided on the top surface of the first movable seat 140 , and a material collecting tray 150 is detachably connected to the bottom of the first movable seat 140 , and the material collecting tray 150 is located below the material collecting hole 141 .

[0069] In this embodiment, a through-hole 141 for collecting pellets is provided on the first movable seat 140. The pellets intercepted by the baffle plate 121 will fall through the hole 141 for collecting pellets and eventually remain in the collecting tray 150 below, thereby preventing the pellets from gathering on the top surface of the first movable seat 140 and hindering the rotation of the pressure steel pipe 200.

[0070] After the surface treatment of the penstock 200 is completed, the collecting tray 150 can be removed and the pellets in the collecting tray 150 can be collected and recycled, which helps to reduce the cost of the surface treatment.

[0071] like Figure 5 In some embodiments, the mobile shot blasting machine 320 is provided with a brush 322 , and the brush 322 is arranged around the first discharge port 321 .

[0072] On the one hand, since the brush 322 can be deformed according to the degree of curvature of the inner wall 220 of the pressure steel pipe 200, it helps to block the gap between the first discharge port 321 and the inner wall 220, thereby blocking the pellets ejected from the first discharge port 321; on the other hand, when the pressure steel pipe 200 rotates, the inner wall 220 will move relative to the brush 322. At this time, the brush 322 can be used to clean foreign matter (such as pellets or dust) on the inner wall 220.

[0073] like Figure 2 In some embodiments, the mobile shot blasting machine 320 includes a support assembly 323 , and the support assembly 323 includes a support wheel 3231 for abutting against the inner wall 220 of the penstock 200 .

[0074] For example, the support assembly 323 may further include a screw adjustment mechanism 3232, which may include a U-shaped bracket connected to the lower end of the screw and a handwheel connected to the upper end of the screw, and the support wheel 3231 is rotatably connected to the U-shaped bracket. The support wheel 3231 can be raised or lowered by rotating the screw driven by the handwheel.

[0075] Exemplarily, the support assembly 323 may include a motor, which is in transmission connection with the support wheel 3231 to drive the support wheel 3231 to rotate while the pressure steel pipe 200 rotates, thereby making the mobile shot blasting machine 320 stationary relative to the first movable seat 140, and preventing the mobile shot blasting machine 320 from offsetting as the pressure steel pipe 200 rotates.

[0076] The support assembly 323 allows the mobile shot blasting machine 320 to be stably positioned within the inner bore of the penstock 200, ensuring that the first discharge port 321 is stably positioned close to the inner wall 220 of the penstock 200, thereby ensuring the quality of the surface treatment. Furthermore, the rotatable support wheels 3231 contact the inner wall 220 of the penstock 200, helping to reduce friction between the support assembly 323 and the inner wall 220 of the penstock 200, thereby preventing the mobile shot blasting machine 320 from scratching the penstock 200.

[0077] like Figure 4In some embodiments, the penstock surface treatment device further includes a first guide rail 500 extending along a first direction, and a second guide rail 600 extending along a second direction, the second guide rail 600 being located on at least one side of the first guide rail 500; the supporting base 100 reciprocates along the first guide rail 500, and the outer wall shot blasting assembly 400 reciprocates along the second guide rail 600; a lifting and hoisting device 330 is hung at one end of the cantilever 312, and the mobile shot blasting machine 320 is hoisted to the cantilever 312 through the lifting and hoisting device 330.

[0078] Exemplarily, the outer wall shot blasting assembly 400 includes a second movable base 420 , and the tower outer wall shot blasting machine 410 is installed on the top surface of the second movable base 420 .

[0079] Exemplarily, the bottom of the first movable base 140 is provided with a roller matching the first guide rail 500 , and the bottom of the second movable base 420 is provided with a roller matching the second guide rail 600 .

[0080] Exemplarily, the lifting device 330 may be an electric hoist or a hand hoist.

[0081] When loading the penstock 200 onto the carrying base 100 or removing the penstock 200 from the carrying base 100, the carrying base 100 can be driven to move along the first guide rail 500 to a position away from the inner wall shot blasting assembly 300 and the outer wall shot blasting assembly 400 to facilitate the assembly and disassembly of the penstock 200. During the surface treatment process, the relative position between the penstock 200 and the mobile shot blasting machine 320, as well as the relative position between the penstock 200 and the tower outer wall shot blasting machine 410, can be adjusted by driving the carrying base 100 to move along the first guide rail 500 to complete the surface treatment of the entire inner wall 220 and outer wall 210 of the penstock 200.

[0082] When the outer diameter of the pressure steel pipe 200 that needs surface treatment changes, the outer wall shot blasting assembly 400 can be driven to move along the second guide rail 600 to ensure that the second discharge port 411 can better fit the outer wall 210 of the pressure steel pipe 200.

[0083] When the inner diameter of the penstock 200 requiring surface treatment changes, the height of the mobile shot blasting machine 320 can be adjusted by the lifting and hoisting device 330 to ensure that the first discharge port 321 can maintain a preset distance from the inner wall 220 of the penstock 200 .

[0084] It should be noted that the above description is limited to some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in an order different from that described in the above embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order or sequential order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0085] The various embodiments in this application are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0086] The description of this application is provided for purposes of illustration and description and is not intended to be exhaustive or to limit the application to the disclosed form. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the application and to enable those skilled in the art to understand the application and design various embodiments with various modifications suitable for specific applications.

[0087] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application is limited to these examples. In line with the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0088] While the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0089] The embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A penstock surface treatment device, characterized in that: include: A bearing base, wherein the bearing base is provided with a supporting assembly for supporting the penstock, the supporting assembly including a driving unit for driving the penstock to rotate around an axis; a material blocking assembly is provided on at least one side of the supporting assembly along a first direction; the first direction is the axial direction of the penstock placed on the bearing base; An inner wall shot blasting assembly includes a bracket and a mobile shot blasting machine; the bracket includes a column fixed to one side of the bearing base along the first direction, and a cantilever connected to the column and capable of extending into the inner hole of the penstock; the mobile shot blasting machine is hoisted on the cantilever, and the first discharge port of the mobile shot blasting machine can be close to the inner wall of the penstock; The outer wall shot blasting assembly is arranged on one side of the supporting base along the second direction. The outer wall shot blasting assembly includes a tower outer wall shot blasting machine. The second discharge port of the tower outer wall shot blasting machine can fit the outer wall of the pressure steel pipe; the second direction is perpendicular to the first direction.

2. The penstock surface treatment device according to claim 1, characterized in that: The penstock comprises a main body and reinforcing ribs, wherein the main body is a tubular structure, and the reinforcing ribs are connected to the outer wall of the main body around the axis of the main body; The bearing base includes a limiting assembly connected to the supporting assembly, and the limiting assembly includes at least one limiting unit, and the limiting unit abuts against the side wall of the reinforcing rib.

3. The penstock surface treatment device according to claim 2, characterized in that: The limiting assembly includes two limiting units, and the two limiting units are arranged on opposite sides of the reinforcing rib along the first direction.

4. The penstock surface treatment device according to claim 2, characterized in that: The limiting assembly includes a support plate connected to the supporting assembly, the limiting unit includes a limiting shaft connected to the support plate, the limiting shaft is rotatably connected to a limiting roller, and the limiting roller abuts against the reinforcing rib.

5. The penstock surface treatment device according to claim 1, characterized in that: The supporting base includes a first movable seat, the supporting assembly is connected to the top surface of the first movable seat, the material blocking assembly includes a material blocking plate vertically connected to the top surface of the first movable seat, the first discharge port is located at the bottom of the mobile shot blasting machine, and along the first direction, the orthographic projection of the first discharge port on the material blocking plate is located inside the material blocking plate.

6. The penstock surface treatment device according to claim 5, characterized in that: The bottom of the baffle plate is provided with a plug-in column, and the baffle plate is plugged into the first movable seat through the plug-in column.

7. The penstock surface treatment device according to claim 5, characterized in that: A material collecting through hole penetrating in the vertical direction is provided on the top surface of the first movable seat, and a material collecting tray is detachably connected to the bottom of the first movable seat, and the material collecting tray is located below the material collecting through hole.

8. The penstock surface treatment device according to claim 1, characterized in that: The mobile shot blasting machine is provided with a brush, and the brush is arranged around the first discharge port.

9. The penstock surface treatment device according to claim 1, characterized in that: The mobile shot blasting machine includes a support assembly, and the support assembly includes a support wheel for abutting against the inner wall of the penstock.

10. The penstock surface treatment device according to claim 1, characterized in that: The penstock surface treatment device further comprises a first guide rail extending along a first direction, and a second guide rail extending along a second direction, wherein the second guide rail is located on at least one side of the first guide rail; The bearing base reciprocates along the first guide rail, and the outer wall shot blasting assembly reciprocates along the second guide rail; a lifting and hoisting device is hung on one end of the cantilever, and the mobile shot blasting machine is hoisted on the cantilever through the lifting and hoisting device.

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