Polishing device for outer surface of pressure container

Abstract

The utility model relates to the technical field of polishing devices, and discloses a pressure vessel outer surface polishing device which comprises a workbench, and the top of the workbench is fixedly connected with a supporting plate. The pressure vessel outer surface grinding device is provided with the first motor, the rotating rod, the rotating plate, the sliding groove, the grinding rod, the positioning groove and the positioning bolt, the first motor is started to drive the rotating rod to rotate and drive the rotating plate to rotate at the same time, and the grinding rod on the rotating plate can stretch into the pressure vessel to grind the inner wall of the pressure vessel; the rotating diameter of the polishing rod can be adjusted according to the inner walls with different diameters, then the polishing device is suitable for pressure containers with different diameters, the position of the polishing rod is limited and fixed through a positioning bolt, and therefore the polishing device can polish the outer surface through the polishing mechanism; and the inner wall can be ground through the grinding assembly, and the grinding efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to a grinding device for the outer surface of a pressure vessel. Background Art

[0002] A pressure vessel refers to a closed device that contains gas or liquid and bears a certain pressure. Its pressure range is specified as a maximum working pressure greater than or equal to 0.1MPa. Pressure vessels are generally cylindrical, with a few being spherical or other shapes. Cylindrical pressure vessels are usually composed of parts and components such as cylinders, heads, connecting pipes, and flanges. The higher the working pressure of the pressure vessel, the thicker the wall of the cylinder should be.

[0003] During the regular inspection of pressure vessels, surface cracks are often caused by excessive defects such as local corrosion and mechanical damage. In order to effectively eliminate the crack phenomenon, the pressure vessel inspection must be polished. During the polishing process, the stress concentration problem should be reduced and the transition polishing position can be smooth.

[0004] The prior art patent document with publication number CN214109809U provides a device for grinding the outer surface of a pressure vessel. The grinding device drives a movable platform to move left and right through a screw rod, and drives the pressure vessel to roll through a roller, so as to realize rotational grinding of the entire surface of the pressure vessel. The grinding device is driven up and down by a rack and a gear, so as to adjust the grinding intensity of the surface of the pressure vessel, thereby improving the grinding efficiency and the grinding quality.

[0005] In the above-mentioned prior art, although the grinding device can realize rotational grinding of the entire surface of the pressure vessel by driving the movable platform to move left and right through the screw and driving the pressure vessel to roll through the roller, the grinding device in the patented technology needs to perform the next step of processing after grinding the outer surface of the pressure vessel, and also needs to grind the inside of the pressure vessel. It is impossible to quickly and effectively grind the inner wall of the pressure vessel, thereby reducing the grinding efficiency of the pressure vessel. Therefore, we need a device for grinding the outer surface of the pressure vessel. Utility Model Content

[0006] The purpose of the utility model is to provide a pressure vessel outer surface grinding device to solve the problem that the grinding device in the patent technology proposed in the above background technology needs to perform the next step of processing after the outer surface of the pressure vessel is polished, and the inside of the pressure vessel needs to be polished, and the inner wall of the pressure vessel cannot be polished quickly and effectively, thereby reducing the grinding efficiency of the pressure vessel.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A pressure vessel outer surface polishing device comprises a workbench, a support plate is fixedly connected to the top of the workbench, a polishing assembly is installed on one side of the support plate, and a pushing assembly is arranged on the top of the workbench;

[0009] The grinding assembly comprises a first motor, the output end of the first motor is detachably connected to a rotating rod through a coupling, and one end of the rotating rod is fixedly connected to a rotating plate, the inner wall of the rotating plate is provided with a sliding groove, and the inner wall of the sliding groove is slidably connected to a grinding rod, the outer surface of the grinding rod is provided with a positioning groove, and the inner wall of the positioning groove is clamped and connected with a positioning bolt;

[0010] The pushing assembly includes a second motor, the output end of the second motor is detachably connected to a screw rod through a coupling, and the outer surface of the screw rod is rotatably connected to a moving block, a manual wheel is installed on one side of the workbench, and one end of the manual wheel is rotatably connected to a screw rod, and the outer surface of the screw rod is rotatably connected to a pushing block.

[0011] Preferably, a movable leg is fixedly connected to the bottom of the workbench, a movable plate is installed on the top of the workbench, a pressure vessel body is installed on the top of the movable plate, and a grinding mechanism is provided on the top of the movable plate.

[0012] Preferably, the first motor forms a rotating structure through a rotating rod and a rotating plate, and the rotating rod is arranged between the first motor and the rotating plate.

[0013] Preferably, the rotating plate forms a sliding structure with the polishing rod through a sliding groove, and the shape and size of the sliding groove match the shape and size of the polishing rod, and the number of the polishing rods is two.

[0014] Preferably, the polishing rod forms a threaded structure through the positioning groove and the positioning bolt, and the shape and size of the positioning groove match the shape and size of the positioning bolt.

[0015] Preferably, the second motor forms a moving structure through a screw rod and a moving block, and the external thread of the screw rod matches the internal thread of the moving block, and the top of the moving block is connected to the grinding mechanism.

[0016] Preferably, the manual wheel forms a moving structure through a screw rod and a pushing block, and the external thread of the screw rod matches the internal thread of the pushing block.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the pressure vessel outer surface grinding device,

[0018] First, the utility model is provided with a first motor, a rotating rod, a rotating plate, a sliding groove, a grinding rod, a positioning groove and a positioning bolt. By starting the first motor, the rotating rod can be driven to rotate and the rotating plate can be driven to rotate at the same time. The grinding rod on the rotating plate can be extended into the pressure vessel to grind its inner wall. The rotating diameter of the grinding rod can also be adjusted according to the inner wall of different diameters, and then it is suitable for pressure vessels of various diameters. The position of the grinding rod is limited and fixed by the positioning bolt, so that the grinding device can not only grind the outer surface through the grinding mechanism, but also grind the inner wall through the grinding assembly, thereby further improving the grinding efficiency.

[0019] Second, the utility model is provided with a second motor, a screw, a moving block, a manual wheel, a screw and a pushing block. By starting the second motor, the screw can be driven to rotate and the moving block can be driven to move at the same time. The moving block enables the grinding mechanism to move inward to clamp and fix the two sides of the pressure vessel. At this time, the grinding mechanism does not operate. Then the manual wheel is turned by hand to move the pushing block forward for grinding, thereby realizing the pushing work during the grinding of the pressure vessel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the rotating plate and the grinding rod of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the moving block and the grinding mechanism of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the grinding mechanism of the utility model.

[0025] In the figure: 1. workbench; 2. support plate; 3. grinding assembly; 301. first motor; 302. rotating rod; 303. rotating plate; 304. slide groove; 305. grinding rod; 306. positioning groove; 307. positioning bolt; 4. moving leg; 5. moving plate; 6. pressure vessel body; 7. grinding mechanism; 8. pushing assembly; 801. second motor; 802. screw rod; 803. moving block; 804. manual wheel; 805. screw rod; 806. pushing block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a pressure vessel outer surface grinding device, comprising a workbench 1, a support plate 2 is fixedly connected to the top of the workbench 1, a grinding assembly 3 is installed on one side of the support plate 2, and a pushing assembly 8 is arranged on the top of the workbench 1;

[0028] The grinding assembly 3 includes a first motor 301, the output end of the first motor 301 is detachably connected to a rotating rod 302 through a coupling, and one end of the rotating rod 302 is fixedly connected to a rotating plate 303, the inner wall of the rotating plate 303 is provided with a sliding groove 304, and the inner wall of the sliding groove 304 is slidably connected to a grinding rod 305, the outer surface of the grinding rod 305 is provided with a positioning groove 306, and the inner wall of the positioning groove 306 is clamped and connected with a positioning bolt 307;

[0029] The pushing assembly 8 includes a second motor 801, the output end of the second motor 801 is detachably connected to a screw rod 802 via a coupling, and the outer surface of the screw rod 802 is rotatably connected to a moving block 803, a manual wheel 804 is installed on one side of the workbench 1, and one end of the manual wheel 804 is rotatably connected to a screw rod 805, and the outer surface of the screw rod 805 is rotatably connected to a pushing block 806.

[0030] Through the above technical solution, by starting the first motor 301, the rotating rod 302 can be driven to rotate and the rotating plate 303 can be driven to rotate at the same time. The grinding rod 305 on the rotating plate 303 can be extended into the pressure vessel to grind its inner wall. The rotating diameter of the grinding rod 305 can also be adjusted according to the inner wall of different diameters, and then it is suitable for pressure vessels of various diameters. The position of the grinding rod 305 is limited and fixed by the positioning bolt 307, so that the grinding device can not only grind the outer surface through the grinding mechanism 7, but also grind the inner wall through the grinding component 3, thereby further improving the grinding efficiency.

[0031] Specifically, the bottom of the workbench 1 is fixedly connected with a movable leg 4, the top of the workbench 1 is installed with a movable plate 5, the top of the movable plate 5 is installed with a pressure vessel body 6, and the top of the movable plate 5 is provided with a grinding mechanism 7.

[0032] Through the above technical scheme, the movable legs 4 at the bottom of the workbench 1 can facilitate the movement of the entire grinding device, which is convenient for moving the grinding device, and the grinding mechanism 7 on the movable plate 5 can grind the outer surface of the pressure vessel body 6. The pressure vessel body 6 is rotated by multiple rollers in the grinding mechanism 7, and is grinded by the grinding arc surface on the other side. When the pressure vessel body 6 needs to be limited, the rotation of the rollers is stopped to limit the pressure vessel body 6.

[0033] Specifically, the first motor 301 forms a rotating structure through the rotating rod 302 and the rotating plate 303 , and the rotating rod 302 is disposed between the first motor 301 and the rotating plate 303 .

[0034] Through the above technical solution, it is convenient to start the first motor 301 to drive the rotating rod 302 to rotate and drive the rotating plate 303 to rotate, thereby achieving the effect of rotating the rotating plate 303.

[0035] Specifically, the rotating plate 303 forms a sliding structure with the polishing rod 305 through the sliding groove 304, and the shape and size of the sliding groove 304 match the shape and size of the polishing rod 305. The number of the polishing rods 305 is two.

[0036] Through the above technical solution, the grinding rod 305 on the rotating plate 303 can grind the inner wall of the pressure vessel, and the grinding rod 305 can slide up and down through the slide groove 304, so that the rotation diameter of the grinding rod 305 can be changed and adjusted to meet different usage requirements.

[0037] Specifically, the polishing rod 305 forms a threaded structure with the positioning bolt 307 through the positioning groove 306 , and the shape and size of the positioning groove 306 match the shape and size of the positioning groove 307 .

[0038] Through the above technical solution, it is convenient to extend the positioning bolt 307 into the positioning groove 306 to limit and fix the position of the grinding rod 305, and multiple positioning grooves 306 are provided for selection, so as to fix the diameter change according to different usage requirements.

[0039] Specifically, the second motor 801 forms a moving structure with the moving block 803 through the screw rod 802 , and the external thread of the screw rod 802 matches the internal thread of the moving block 803 , and the top of the moving block 803 is connected to the grinding mechanism 7 .

[0040] Through the above technical solution, it is convenient to start the second motor 801 to drive the screw rod 802 to rotate and drive the moving block 803 to move, and the moving block 803 drives the grinding mechanism 7 to move. Because the threads on both sides of the screw rod 802 rotate in opposite directions, the two moving blocks 803 move in opposite directions, so that the inner wall of the grinding mechanism 7 clamps and fixes the pressure vessel body 6.

[0041] Specifically, the manual wheel 804 forms a moving structure through the screw rod 805 and the pushing block 806 , and the external thread of the screw rod 805 matches the internal thread of the pushing block 806 .

[0042] Through the above technical solution, the manual wheel 804 can rotate to drive the screw 805 to rotate and drive the push block 806 to move. Since the top of the push block 806 is connected to the bottom of the movable plate 5, the pressure vessel body 6 installed on the movable plate 5 is moved.

[0043] Working principle: When using the pressure vessel outer surface grinding device, first, start the second motor 801, the second motor 801 drives the screw 802 to rotate, and the screw 802 drives the moving block 803 to move. Because the threads on both sides of the screw 802 rotate in opposite directions, the two moving blocks 803 move in opposite directions, so that the inner wall of the grinding mechanism 7 clamps the pressure vessel body 6, and the pressure vessel body 6 is rotated by multiple rollers in the grinding mechanism 7, and is ground by the grinding arc surface on the other side. After the outer surface of the pressure vessel body 6 is ground, the grinding mechanism 7 is stopped so that the pressure vessel body 6 remains stationary, and then the manual wheel 804 is turned by hand, and the manual wheel 804 rotates to drive the screw 80 5 is rotated, the screw rod 805 drives the pushing block 806 to move forward, so that the inner wall of the pressure container body 6 is inserted into the grinding assembly 3, and the first motor 301 is started. The first motor 301 drives the rotating rod 302 to rotate, and the rotating rod 302 drives the rotating plate 303 to rotate. The grinding rod 305 on the rotating plate 303 can grind the inner wall of the pressure container, and a plurality of positioning grooves 306 are provided for selection, so that the diameter change can be fixed according to different use requirements, and then the rotating diameter of the grinding rod 305 can be changed and adjusted to meet different use requirements. This completes all the work. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pressure vessel outer surface polishing device, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a support plate (2), and a grinding assembly (3) is installed on one side of the support plate (2); and a pushing assembly (8) is arranged on the top of the workbench (1); The grinding assembly (3) comprises a first motor (301), the output end of the first motor (301) is detachably connected to a rotating rod (302) via a coupling, and one end of the rotating rod (302) is fixedly connected to a rotating plate (303), the inner wall of the rotating plate (303) is provided with a sliding groove (304), and the inner wall of the sliding groove (304) is slidably connected to a grinding rod (305), the outer surface of the grinding rod (305) is provided with a positioning groove (306), and the inner wall of the positioning groove (306) is snap-connected with a positioning bolt (307); The pushing assembly (8) comprises a second motor (801), the output end of the second motor (801) is detachably connected to a screw rod (802) via a coupling, and the outer surface of the screw rod (802) is rotatably connected to a moving block (803), a manual wheel (804) is installed on one side of the workbench (1), and one end of the manual wheel (804) is rotatably connected to a screw rod (805), and the outer surface of the screw rod (805) is rotatably connected to a pushing block (806).

2. A pressure vessel outer surface polishing device according to claim 1, characterized in that: The bottom of the workbench (1) is fixedly connected to a movable leg (4), the top of the workbench (1) is installed with a movable plate (5), the top of the movable plate (5) is installed with a pressure vessel body (6), and the top of the movable plate (5) is provided with a grinding mechanism (7).

3. A pressure vessel outer surface polishing device according to claim 1, characterized in that: The first motor (301) forms a rotating structure through a rotating rod (302) and a rotating plate (303), and the rotating rod (302) is arranged between the first motor (301) and the rotating plate (303).

4. A pressure vessel outer surface polishing device according to claim 1, characterized in that: The rotating plate (303) forms a sliding structure with the polishing rod (305) through the sliding groove (304), and the shape and size of the sliding groove (304) match the shape and size of the polishing rod (305), and the number of the polishing rods (305) is two.

5. The pressure vessel outer surface polishing device according to claim 1, characterized in that: The polishing rod (305) forms a threaded structure through the positioning groove (306) and the positioning bolt (307), and the shape and size of the positioning groove (306) match the shape and size of the positioning groove (306).

6. The pressure vessel outer surface polishing device according to claim 1, characterized in that: The second motor (801) forms a moving structure through a screw rod (802) and a moving block (803), and the external thread of the screw rod (802) matches the internal thread of the moving block (803), and the top of the moving block (803) is connected to the grinding mechanism (7).

7. The pressure vessel outer surface polishing device according to claim 1, characterized in that: The manual wheel (804) forms a moving structure through a screw rod (805) and a push block (806), and the external thread of the screw rod (805) matches the internal thread of the push block (806).

Images