Automatic grinding machine for welding seam of pressure vessel

Abstract

The utility model discloses an automatic polishing machine for a welding seam of a pressure container. The device comprises a fixing mechanism and a shot blasting machine box, the fixing mechanism comprises a supporting plate, a suspension steel rail is fixed to the bottom end of the supporting plate, a rail groove is formed below the suspension steel rail, a rail car in sliding fit is arranged in the rail groove, a hoisting mechanism is connected to the lower portion of the rail car, and a steel plate clamp used for clamping and fixing a pressure container is arranged at the lower end of the hoisting mechanism; and the shot blasting machine box is fixedly arranged outside the suspended steel rail in a covering manner and is used for carrying out shot blasting operation on the pressure container transferred by the rail car. The shot blasting machine has the advantages that after being hoisted and fixed, the shot blasting machine moves in the rail groove through the rail car at the top to be transferred into the shot blasting mechanism to be subjected to the shot blasting procedure, manual carrying is not needed, the labor intensity of operators is greatly reduced, and the operation safety is improved; and the cleaning efficiency of the welding seam is improved through mechanical polishing, manual operation is omitted, great convenience is brought to cleaning work, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the technology of automatic grinding machine for pressure vessel welds, and in particular to an automatic grinding machine for pressure vessel welds. Background Technology

[0002] Pressure vessels are sealed devices that hold gases or liquids and withstand a certain pressure. They are mostly cylindrical structures with a circular cross-section. Currently, most pressure vessels on the market are manufactured through welding, which results in weld seams. If these weld seams are not properly ground, corrosion can occur, affecting the service life of the pressure vessel and also impacting the cleanliness of its surface. For example, a pressure vessel weld seam grinding mechanism disclosed in announcement number CN214559672U includes a mounting frame that can move along the ground. A first motor is mounted on the mounting frame, and a rotating rod is mounted on one side of the drive end of the first motor. A retractable mounting plate is mounted at the end of the rotating rod, and a second motor is mounted on the side of the mounting plate facing the first motor. A grinding head is mounted on the drive end of the second motor. In existing technologies, weld seam grinding is done manually by workers using sandpaper. This method is highly inefficient, increases the workload of workers, and is time-consuming and labor-intensive. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an automatic grinding machine for pressure vessel welds that can adopt an automatic integrated shot blasting process and an all-round shot blasting operation without dead angles.

[0004] To solve the above-mentioned technical problems, the automatic grinding machine for pressure vessel welds of this utility model includes a fixing mechanism and a shot blasting machine box. The fixing mechanism includes a support plate, a suspension rail is fixed to the bottom end of the support plate, a track groove is opened below the suspension rail, a slidingly fitted track car is installed in the track groove, a lifting mechanism is connected to the bottom of the track car, and a steel plate clamp for clamping and fixing the pressure vessel is provided at the lower end of the lifting mechanism. The shot blasting machine box is covered and fixed to the outside of the suspension rail and performs shot blasting operation on the pressure vessel moved by the track car.

[0005] The shot blasting machine housing is equipped with a feed pipe, a spraying rotor, a spraying head installed at one end of the spraying rotor, and an anti-diffusion cover fixed at the other end of the spraying head.

[0006] The bottom of the shot blasting machine housing is also equipped with a recycling tank, which is connected to a recycling well for recycling grinding particles.

[0007] The support plate is supported by support legs. The bottom of the support legs is provided with a support base plate. The support base plate has a reinforcement hole. Anchor bolts are screwed into the reinforcement holes. A reinforcement nut is fixedly installed on the top of the anchor bolt. A metal washer is fixedly installed below the reinforcement nut.

[0008] The railcar is connected to the lifting mechanism via support columns at its base.

[0009] The lifting mechanism is provided with a support steel cable below, a counterweight is fixed below the support steel cable, a lifting steel cable is connected below the counterweight, and a connecting steel ring is provided below the lifting steel cable.

[0010] A pin is installed in the steel ring, and the left end of the pin is connected to a steel plate clamp.

[0011] The front of the shot blasting machine housing has a built-in operation control panel, which includes a display screen, operation buttons, a rear instruction module, and an adapter power supply.

[0012] The top of the shot blasting machine housing is equipped with a heat dissipation mechanism, which includes fan blades. The fan blades are covered with a dustproof shell and a fixed shell. Screw holes are opened at the four corners of the fixed shell, and reinforcing screws are screwed into the screw holes. A main shaft is installed at the center of the fan blades, and a drive motor is fixedly installed at the rear of the main shaft.

[0013] Advantages of this utility model:

[0014] (1) During operation, the steel plate clamps fix the pressure vessel, allowing the lifting mechanism to lift the pressure vessel. The counterweight blocks are used to maintain the balance during lifting and movement. After the lifting and fixing are completed, the pressure vessel is moved to the shot blasting mechanism by the top railcar moving in the rail groove. No manual handling is required, which greatly reduces the labor intensity of the operators and improves the safety of the operation.

[0015] (2) During operation, the spraying machine moves to one side of the pressure vessel and rotates. The spraying head on the spraying machine will grind the weld. Mechanized grinding improves the cleaning efficiency of the weld, saves manual operation, and brings great convenience to the cleaning work, saving time and effort.

[0016] (3) The shot blasting machine housing is installed and fixed outside the suspended steel rail to form a closed shot blasting space. The anti-diffusion cover effectively controls the diffusion of shot particles, reduces dust pollution, and is conducive to the cleanliness of the working environment and the protection of personnel health.

[0017] (4) The shot blasting mechanism can select the shot blasting intensity through the control panel. This is used to select and adjust the shot blasting intensity to adapt to different materials or weld treatment requirements. It also improves the accuracy of shot blasting and avoids the errors of manual grinding.

[0018] (5) The various mechanisms are reasonably distributed, which facilitates disassembly, maintenance or replacement. The shot blasting mechanism or track can be upgraded according to the needs in the future, and it has good scalability and adaptability. Attached Figure Description

[0019] Figure 1This is a structural diagram of the automatic pressure vessel weld grinding machine of this utility model;

[0020] Figure 2 This is a schematic diagram of the track structure in the automatic pressure vessel weld grinding machine of this utility model;

[0021] Figure 3 This is a schematic diagram of the shot blasting mechanism in the automatic pressure vessel weld grinding machine of this utility model;

[0022] Figure 4 This is a schematic diagram of the spraying rotor in the automatic pressure vessel weld grinding machine of this utility model;

[0023] Figure 5 This is a schematic diagram of the lifting mechanism in the automatic pressure vessel weld grinding machine of this utility model;

[0024] Figure 6 This is a schematic diagram of the steel ring structure in the automatic pressure vessel weld grinding machine of this utility model;

[0025] Figure 7 This is a schematic diagram of the steel plate clamp in the automatic pressure vessel weld grinding machine of this utility model;

[0026] Figure 8 This is a schematic diagram of the heat dissipation structure in the automatic pressure vessel weld grinding machine of this utility model;

[0027] Figure 9 This is a schematic diagram of the fan structure in the automatic pressure vessel weld grinding machine of this utility model. Detailed Implementation

[0028] The automatic pressure vessel weld grinding machine of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0029] The automatic pressure vessel weld grinding machine of this utility model includes a fixing mechanism 1 and a shot blasting mechanism 7. The fixing mechanism includes a support plate 2, and a suspension rail 3 is fixed to the bottom end of the support plate 2. A track groove 4 is opened below the suspension rail 3, and a sliding railcar 5 is provided in the track groove 4. The bottom of the railcar 5 is connected to the lifting mechanism 6 through a support column 19. The lower end of the lifting mechanism 6 is provided with a steel plate clamp 25 for clamping and fixing the pressure vessel. The shot blasting mechanism 7 includes a shot blasting machine box 8. The suspension rail 3 passes through the internal working cavity of the shot blasting machine box 8, so that the shot blasting mechanism 7 performs shot blasting operation on the pressure vessel transferred by the railcar 5.

[0030] The shot blasting mechanism 7 also includes a feed pipe 9, a spraying rotor 10, a spraying head 11 installed at one end of the spraying rotor, and an anti-diffusion cover 12 fixed at the other end of the spraying head, all located inside the shot blasting machine housing 8. A recovery trough 13 is also provided at the bottom of the shot blasting machine housing 1, and the recovery trough 13 is connected to a recovery well 14 for recovering grinding particles. The support plate 2 is supported by support legs 15, and the bottom of the support legs 15 is provided with a support foot plate 16, on which a reinforcement... An anchor bolt is screwed into the reinforcement hole 17, and a reinforcement nut 18 is fixedly installed on the top of the anchor bolt. A metal washer is fixedly installed below the reinforcement nut 18. A support steel cable 20 is provided below the lifting mechanism 6. A counterweight block 21 is fixed below the support steel cable 20. A lifting steel cable 22 is connected below the counterweight block 21. A connecting steel ring 23 is provided below the lifting steel cable 22. A pin 24 is installed in the steel ring 23. A steel plate clamp 25 is connected to the left end of the pin 24. The front of the shot blasting machine housing 8 has an operation control panel, which includes a display screen 26, operation buttons 27, a command module 28 at the rear, and an adapter power supply 29. The top of the shot blasting machine housing 8 is equipped with a heat dissipation mechanism 30, which includes fan blades 31. The fan blades 31 are covered with a dustproof shell 32 and a fixed shell 33. Screw holes 34 are opened at the four corners of the fixed shell 33, and reinforcing screws 35 are screwed into the screw holes 34. A spindle 36 is installed at the center of the fan blades 31, and a drive rotor 37 is fixedly installed at the rear of the spindle 36.

[0031] Working process: During use, the pressure vessel is fixed using the steel plate clamp 25, and the lifting mechanism 6 lifts the pressure vessel. The counterweight 21 maintains the balance during lifting and movement. After lifting and fixing, the pressure vessel is moved by the top railcar 5 within the rail groove 4 to the bottom of the shot blasting mechanism 7 for shot blasting. The shot blasting mechanism 7 selects the shot blasting intensity through the control panel and then performs the shot blasting operation. After the shot blasting operation is completed, the railcar 5 continues to move forward, transporting the pressure vessel to the stacking position to await loading. This utility model adopts an automatic integrated shot blasting process, using a hoisting rail to fix and transport the components. The shot blasting mechanism 7 uses a ring-shaped feed pipe 9, and the design of the spray nozzle 11 installed inside further ensures that the pressure vessel can be shot blasted from all directions without dead angles. This device only requires manual operation of the lifting mechanism 6 to lift the pressure vessel. After the shot blasting operation is completed, the staff only needs to operate the lifting mechanism 6 in the stacking area to lower the pressure vessel to complete the complete shot blasting operation.

Claims

1. A pressure vessel weld seam automatic grinder characterized by: Including fixed mechanism (1) and shot blasting machine box (8), the fixed mechanism includes support plate (2), the bottom end of support plate (2) is fixed with suspension steel rail (3), the lower of suspension steel rail (3) is provided with track groove (4), track groove (4) is equipped with slidingly fitted track car (5), the lower of track car (5) is connected with hoisting mechanism (6), the lower end of hoisting mechanism (6) is provided with steel plate clamp (25) for clamping fixed pressure vessel;Shot blasting machine box (8) cover is fixed to the outside of suspension steel rail (3) and carries out shot blasting operation to the pressure vessel that track car (5) moves.

2. The pressure vessel weld automatic grinder of claim 1, wherein: The shot blasting machine box (8) is provided with a feeding pipe (9), a spraying machine (10), a spraying head (11) installed at one end of the spraying machine, and a diffusion-proof cover (12) fixed at the other end of the spraying head.

3. The pressure vessel weld automatic grinder of claim 2, wherein: The bottom end of the shot blasting machine box (8) is further provided with a recovery tank (13), and the recovery tank (13) is connected with a recovery well (14) for recovering polishing particles.

4. The pressure vessel weld automatic grinder of claim 1, wherein: The support plate (2) is supported by a support leg column (15), the bottom of the support leg column (15) is provided with a support foot plate (16), the support foot plate (16) is provided with a reinforcing hole (17), a foundation bolt is screwed into the reinforcing hole (17), a reinforcing nut (18) is fixedly installed at the top end of the foundation bolt, and a metal gasket is fixedly installed below the reinforcing nut (18).

5. The pressure vessel weld automatic grinder of claim 1, wherein: The lower part of the track car (5) is connected with the hoisting mechanism (6) through a support column (19).

6. The pressure vessel weld automatic grinder of claim 1, wherein: The lower part of the hoisting mechanism (6) is provided with a support steel cable (20), the lower part of the support steel cable (20) is fixed with a counterweight (21), the lower part of the counterweight (21) is connected with a hoisting steel cable (22), and the lower part of the hoisting steel cable (22) is provided with a steel ring (23).

7. The pressure vessel weld automatic grinder of claim 6, wherein: The steel ring (23) is installed with a bolt (24), and the left end of the bolt (24) is connected with a steel plate clamp (25).

8. The pressure vessel weld automatic grinder of claim 1, wherein: The front side of the shot blasting machine box (8) is built-in with an operation control panel, the operation control panel includes a display screen (26), an operation button (27), a rear instruction module (28) and an adaptive power supply (29).

9. The pressure vessel weld automatic grinder of claim 1, wherein: The top end of the shot blasting machine box (8) is provided with a heat dissipation mechanism (30), the heat dissipation mechanism (30) includes a fan blade (31), the outside of the fan blade (31) is installed with a dustproof shell (32) and a fixed shell (33), four corners of the fixed shell (33) are provided with screw holes (34), reinforcing screws (35) are screwed into the screw holes (34); the center of the fan blade (31) is installed with a main shaft (36), and the rear of the main shaft (36) is fixedly installed with a driving rotary machine (37).

Images