Sand blasting robot for offshore platform

Abstract

The utility model provides a sand blasting robot for an offshore platform, which relates to the field of sand blasting robots and comprises a sand blasting unit. Comprising a moving vehicle, a swing arm assembly arranged at the top of the moving vehicle, a material mixing box which is fixedly connected to the top of the moving vehicle and provides a space for material mixing, a spring hose communicating with the top of the material mixing box, and a sand blasting gun communicating with the other end of the spring hose and used for blasting sand; the first motor drives the connecting plate to rotate in a semi-arc mode, the movable plate and the supporting plate can drive the sand blasting gun to do semi-arc motion, the second motor drives the transmission wheel to rotate, the transmission belt drives the movable block and the movable plate to move front and back, and extension and contraction of the movable plate are achieved. And through movement of the movable plate, the supporting plate can drive the sand blasting gun to cover a larger sand blasting range, the requirement for frequently adjusting the position of the robot by an operator is reduced, and therefore the efficiency of sand blasting operation is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of sandblasting robots, specifically a sandblasting robot for offshore platforms. Background Technology

[0002] Offshore platform sandblasting robots are automated equipment designed specifically for marine engineering environments. They are mainly used to perform surface sandblasting on offshore platform structural components, pipelines, and other metal parts. They remove rust, dirt, and old coatings from the workpiece surface by high-speed jetting of sand, providing a clean surface with suitable roughness for subsequent painting or anti-corrosion treatment.

[0003] Traditional sandblasting robots mainly consist of a trolley, a swing arm, a sand feeding mechanism, a sand storage tank, an air compressor, a mixer, and a spray gun. During sandblasting, the sand feeding mechanism, in conjunction with the air compressor, transfers the sand from the storage tank to the mixing box, where the sand and high-pressure airflow are mixed to form a high-speed sand stream. This high-speed sand stream is then transported to the spray gun through a pipeline. The trolley, in conjunction with the swing arm, moves the spray gun to the workpiece that needs to be sandblasted, and the sand stream is then sprayed onto the surface of the workpiece, thus achieving the sandblasting operation.

[0004] However, traditional sandblasting robots have a fixed arm length, which limits their working range. When dealing with large workpieces, operators need to frequently adjust the position of the sandblasting robot to cover a wider area, which not only reduces the efficiency of sandblasting but also increases the robot's operating time and energy consumption.

[0005] In summary, this utility model provides a sandblasting robot for offshore platforms to solve the above-mentioned problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A sandblasting robot for offshore platforms, including

[0008] The sandblasting unit includes a mobile vehicle, a swing arm assembly disposed on the top of the mobile vehicle, a mixing box fixedly connected to the top of the mobile vehicle and providing space for mixing, a spring hose connected to the top of the mixing box, a sandblasting gun connected to the other end of the spring hose and used for spraying sand, and a feeding unit disposed on one side of the mixing box and used for conveying materials.

[0009] The swing arm assembly includes a first motor, a connecting plate driven to the output shaft of the first motor, a movable plate movably connected to the inner cavity of the connecting plate, a support plate fixedly connected to one end of the movable plate and fixedly connected to the sandblasting gun at its top, transmission wheels movably connected to both sides of the inner cavity of the connecting plate via bearings, a transmission belt driven between the two transmission wheels, a second motor fixedly connected to the top of the inner cavity of the connecting plate and whose output shaft is driven to the right transmission wheel, and a movable block disposed on the surface of the transmission belt and fixedly connected to the movable plate at its top.

[0010] Furthermore, in this utility model, a through hole is provided at the rear end of one side of the movable block, one end of the transmission belt passes through the inner cavity of the through hole and is movably connected to the inner cavity of the through hole, and the other end of the transmission belt passes through the movable block and is fixedly connected to the movable block.

[0011] Furthermore, in this utility model, the front and back sides of the movable block are fixedly connected to limit blocks, and the inner cavity of the limit block is movably connected to a pulley through a bearing. The front and back sides of the connecting plate are provided with limit grooves, and the limit block extends into the inner cavity of the limit groove and is slidably connected to the inner cavity of the limit groove.

[0012] Furthermore, in this utility model, a cover is fixedly connected to the top of the mobile vehicle, the first motor is located in the inner cavity of the cover and is fixedly connected to the bottom of the inner cavity of the cover, and the bottom of the connecting plate is movably connected to the top of the cover through a bearing.

[0013] Beneficial effects: This utility model has the following beneficial effects:

[0014] This invention uses a first motor to drive the connecting plate to rotate in a semi-circular shape, which allows the movable plate and support plate to move the sandblasting gun in a semi-circular motion. The second motor drives the transmission wheel to rotate, which in turn drives the movable block and movable plate to move back and forth via a transmission belt, thereby extending and retracting the movable plate. The movement of the movable plate allows the support plate to drive the sandblasting gun to cover a larger sandblasting area, reducing the need for operators to frequently adjust the robot's position and thus significantly improving the efficiency of sandblasting operations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the support plate, movable plate and sandblasting gun of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the connecting plate of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the cover of this utility model;

[0019] In the picture:

[0020] 100. Sandblasting unit; 110. Moving vehicle; 120. Swing arm assembly; 121. First motor; 1211. Cover; 122. Connecting plate; 1221. Limiting groove; 123. Movable plate; 124. Support plate; 125. Transmission wheel; 126. Second motor; 127. Transmission belt; 128. Movable block; 1281. Limiting block; 130. Mixing box; 140. Spring hose; 150. Sandblasting gun; 160. Feeding unit. Detailed Implementation

[0021] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0022] Example 1

[0023] like Figure 1-4 As shown, this is the first embodiment of the present invention, which provides a sandblasting robot for offshore platforms, including...

[0024] The sandblasting unit 100 includes a mobile carriage 110, a swing arm assembly 120 disposed on the top of the mobile carriage 110, a mixing box 130 fixedly connected to the top of the mobile carriage 110 and providing space for mixing materials, a spring hose 140 connected to the top of the mixing box 130, a sandblasting gun 150 connected to the other end of the spring hose 140 and used for blasting sand, and a feeding unit 160 disposed on one side of the mixing box 130 and used for conveying materials.

[0025] The swing arm assembly 120 includes a first motor 121, a connecting plate 122 driven to the output shaft of the first motor 121, a movable plate 123 movably connected to the inner cavity of the connecting plate 122, a support plate 124 fixedly connected to one end of the movable plate 123 and fixedly connected to the top of the sandblasting gun 150, a transmission wheel 125 movably connected to both sides of the inner cavity of the connecting plate 122 via bearings, a transmission belt 127 driven between the two transmission wheels 125, a second motor 126 fixedly connected to the top of the inner cavity of the connecting plate 122 and whose output shaft is driven to the right transmission wheel 125, and a movable block 128 disposed on the surface of the transmission belt 127 and fixedly connected to the top of the movable plate 123.

[0026] like Figure 1-4 As shown, the mobile cart 110 can be moved to the vicinity of the workpiece requiring sandblasting. The feeding unit 160 can transmit sand and high-pressure airflow to the mixing box 130 to mix and form a high-speed sand stream. The high-speed sand stream is transmitted to the sandblasting gun 150 through the spring hose 140, and then the sand stream can be sprayed onto the surface of the workpiece through the sandblasting gun 150 to realize the sandblasting operation. During the sandblasting process, the first motor 121 adopts an ACR240 permanent magnet arc-shaped guide rail motor, which can drive the connecting plate 122 to rotate in a semi-arc shape, so that the movable plate 123 and the support plate 124 can drive the spray gun. The sandblasting gun 150 performs a semi-circular motion, and the second motor 126, which is a GTE040-NN2-020B-NN45 servo geared motor, drives the transmission wheel 125 to rotate. The transmission belt 127 drives the movable block 128 and the movable plate 123 to move back and forth, realizing the extension and retraction of the movable plate 123. The movement of the movable plate 123 allows the support plate 124 to drive the sandblasting gun 150 to cover a larger sandblasting area, reducing the need for operators to frequently adjust the robot's position, thereby significantly improving the efficiency of sandblasting operations.

[0027] Example 2

[0028] Reference Figure 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0029] In this embodiment, a through hole is provided at the rear end of one side of the movable block 128. One end of the transmission belt 127 passes through the inner cavity of the through hole and is movably connected to the inner cavity of the through hole. The other end of the transmission belt 127 passes through the movable block 128 and is fixedly connected to the movable block 128.

[0030] The front and back of the movable block 128 are fixedly connected to the limiting block 1281, and the inner cavity of the limiting block 1281 is movably connected to the pulley through the bearing. The front and back of the connecting plate 122 are both provided with limiting grooves 1221, and the limiting block 1281 extends into the inner cavity of the limiting groove 1221 and is slidably connected to the inner cavity of the limiting groove 1221.

[0031] like Figure 1-3 As shown, by opening a through hole at the rear end of one side of the movable block 128, and having one end of the transmission belt 127 pass through the through hole and be movably connected to it, while the other end is fixedly connected to the movable block 128, the purpose is to achieve stable driving of the movable block 128 by the transmission belt 127, preventing movement restriction during movement. The sliding connection between the limiting block 1281 and the limiting groove 1221 effectively prevents the movable block 128 from shifting or shaking during movement, improving the accuracy and stability of the sandblasting operation. Furthermore, the design of the pulley reduces the friction between the limiting block 1281 and the limiting groove 1221, making the movement of the movable block 128 smoother.

[0032] Example 3

[0033] Reference Figure 1 and 4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0034] In this embodiment, a cover 1211 is fixedly connected to the top of the mobile vehicle 110, the first motor 121 is located in the inner cavity of the cover 1211 and is fixedly connected to the bottom of the inner cavity of the cover 1211, and the bottom of the connecting plate 122 is movably connected to the top of the cover 1211 through a bearing.

[0035] The feeding unit 160 includes a storage tank, a sand feeding mechanism, and an air compressor. The discharge end of the storage tank is connected to the inlet end of the sand feeding mechanism, and the discharge end of the sand feeding mechanism is connected to the mixing box 130. The air outlet end of the air compressor is connected to the mixing box 130.

[0036] like Figure 1 and 4 As shown, the cover 1211 provides a relatively enclosed working environment for the first motor 121, effectively preventing corrosive substances such as seawater, salt spray, and dust from eroding the first motor 121 and ensuring its operational safety. By integrating the storage tank, sand feeding mechanism, and air compressor into a feeding unit 160, and connecting the discharge end of the sand feeding mechanism and the air outlet end of the air compressor to the mixing box 130, a stable supply and mixing of sand and high-pressure airflow can be achieved.

[0037] In use, the mobile cart 110 is first moved to the vicinity of the workpiece to be sandblasted and adjusted to a suitable position. Then, the feeding unit 160 is activated, supplying abrasive material through its storage tank. The abrasive feeding mechanism transports the abrasive material to the mixing box 130. Simultaneously, the air compressor provides high-pressure airflow, which is transmitted to the mixing box 130, allowing the high-pressure airflow to mix with the abrasive material, forming a high-speed abrasive stream. This high-speed abrasive stream is then transmitted through the spring hose 140 to the sandblasting gun 150, which then sprays the abrasive stream onto the workpiece surface, thus achieving the sandblasting operation. During the sandblasting process, the first motor 12... The drive connecting plate 122 rotates in a semi-circular shape, which allows the movable plate 123 and the support plate 124 to drive the sandblasting gun 150 to perform a semi-circular motion, making it sandblast in a semi-circular shape. If the sandblasting range needs to be increased, the second motor 126 drives the transmission wheel 125 to rotate, which drives the movable block 128 and the movable plate 123 to move forward through the transmission belt 127, thereby extending the movable plate 123. The movement of the movable plate 123 allows the support plate 124 to drive the sandblasting gun 150 to extend, enabling it to move flexibly within a larger range. This effectively solves the problem of limited working range of traditional sandblasting robots and reduces the need for operators to frequently adjust the robot's position, thus significantly improving the efficiency of sandblasting operations.

[0038] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0039] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A sandblasting robot for offshore platforms, characterized in that: include The sandblasting unit (100) includes a mobile vehicle (110), a swing arm assembly (120) disposed on the top of the mobile vehicle (110), a mixing box (130) fixedly connected to the top of the mobile vehicle (110) and providing space for mixing, a spring hose (140) connected to the top of the mixing box (130), a sandblasting gun (150) connected to the other end of the spring hose (140) and used for blasting sand, and a feeding unit (160) disposed on one side of the mixing box (130) and used for conveying materials; The swing arm assembly (120) includes a first motor (121), a connecting plate (122) driven to the output shaft of the first motor (121), a movable plate (123) movably connected to the inner cavity of the connecting plate (122), a support plate (124) fixedly connected to one end of the movable plate (123) and fixedly connected to the top of the sandblasting gun (150), a transmission wheel (125) movably connected to both sides of the inner cavity of the connecting plate (122) via bearings, a transmission belt (127) driven between the two transmission wheels (125), a second motor (126) fixedly connected to the top of the inner cavity of the connecting plate (122) and whose output shaft is driven to the right transmission wheel (125), and a movable block (128) disposed on the surface of the transmission belt (127) and fixedly connected to the top of the movable plate (123).

2. The sandblasting robot for offshore platforms as claimed in claim 1, characterized in that: A through hole is provided at the rear end of one side of the movable block (128). One end of the transmission belt (127) passes through the inner cavity of the through hole and is movably connected to the inner cavity of the through hole. The other end of the transmission belt (127) passes through the movable block (128) and is fixedly connected to the movable block (128).

3. The sandblasting robot for offshore platforms as claimed in claim 1, characterized in that: The movable block (128) is fixedly connected to the front and back of the back of the fixed block (128), and the inner cavity of the fixed block (1281) is movably connected to a pulley through a bearing. The front and back of the connecting plate (122) are provided with a fixed groove (1221). The fixed block (1281) extends into the inner cavity of the fixed groove (1221) and is slidably connected to the inner cavity of the fixed groove (1221).

4. The sandblasting robot for offshore platforms as claimed in claim 1, characterized in that: The top of the mobile vehicle (110) is fixedly connected to a cover (1211), the first motor (121) is located in the inner cavity of the cover (1211) and is fixedly connected to the bottom of the inner cavity of the cover (1211), and the bottom of the connecting plate (122) is movably connected to the top of the cover (1211) through a bearing.

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