Pressure testing equipment for pressure vessel manufacturing

Abstract

The utility model discloses a pressure test device for manufacturing pressure vessels, and relates to the technical field of pressure test devices, including a machine body, a first arc-shaped clamp and a clamp. The utility model sets a second arc-shaped clamp and a driving component. The second arc-shaped clamp cooperates with the first arc-shaped clamp to be close to each other, so that pressure vessels with different bottle thicknesses can be clamped and fixed just below the clamp, which is convenient for the clamp to disassemble and assemble the cover body, thereby improving the applicability of the device. The driving component can drive the second arc-shaped clamp to move inward while the first arc-shaped clamp moves inward. By setting a lifting component, the height of the second servo motor and the clamp can be adjusted by running the first servo motor to drive the first bevel gear to rotate. Since the threaded rod and the lifting cylinder have good self-locking properties, the lifting component can limit the position of the second servo motor after the height adjustment is completed, and the second servo motor is unlikely to shake, thereby improving the stability of the clamp.

Description

Technical Field

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

[0002] A pressure vessel refers to a closed device that contains gas or liquid and bears a certain pressure. In the chemical and petrochemical fields, pressure vessels are mainly used in heat transfer, mass transfer, reaction and other process, as well as storage and transportation of pressurized gas or liquefied gas. They are also widely used in other industrial and civil fields. After the pressure vessel is manufactured, it needs to be pressure tested to avoid safety accidents caused by the pressure vessel failing to meet the requirements.

[0003] For example, the gas cylinder pressure testing device disclosed in the utility model with authorization announcement number CN217561184U sets a fixing component to engage the clamp's slot with the gas cylinder's cover, and starts the drive motor to drive the clamp to rotate, so that the clamp can rotate the cover out, thereby improving the efficiency of gas cylinder disassembly and assembly. The height of the clamp can be adjusted by starting the control motor to drive one end of the pull rope to reel in or loosen, thereby controlling the drive motor to move up and down in the vertical direction.

[0004] This prior art also has the following problems when used:

[0005] The device starts the driving cylinder to drive the first clamping plate to move toward the second clamping plate to achieve the fixation of the gas cylinder. Since the position of the second clamping plate is relatively fixed, when the thickness of the gas cylinder body changes, the position of the cover body after the gas cylinder is fixed will be far away from directly below the clamp, making it difficult for the clamp to remove the cover body. The device controls the height of the clamp by controlling the motor to drive the pull rope to reel in or loosen. Since the pull rope has a poor limiting effect on the drive motor, the drive motor is prone to swing up and down, thereby affecting the stability of the clamp. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a pressure testing device for pressure vessel manufacturing to solve the technical problems mentioned in the above background.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: A pressure test device for pressure vessel manufacturing comprises a machine body, a first arc-shaped clamping plate and a clamp, wherein the first arc-shaped clamping plate and the clamp are arranged below the machine body;

[0008] A second arc-shaped clamping plate, which is arranged below the machine body. The second arc-shaped clamping plate cooperates with the first arc-shaped clamping plate to be close to each other so as to clamp and fix pressure vessels with different bottle thicknesses;

[0009] A driving assembly, the driving assembly is arranged outside the first arc-shaped clamping plate and the second arc-shaped clamping plate, and the driving assembly can drive the second arc-shaped clamping plate to move inward when the first arc-shaped clamping plate moves inward;

[0010] A lifting component is arranged above the fixture, and the lifting component can adjust the height of the fixture.

[0011] As a preferred technical solution of the utility model, a left fuselage and a right fuselage are fixedly arranged on the bottom surface of the machine body, a support plate is fixedly arranged on the outer side of the left fuselage, a hydraulic cylinder is fixedly installed on the top surface of the support plate, the output end of the hydraulic cylinder is fixedly connected to the outer side of the first arc-shaped clamping plate, a second servo motor is arranged under the machine body, and the output end of the second servo motor is connected to the clamp through a hinge.

[0012] As a preferred technical solution of the utility model, the driving assembly includes a first connecting rod, a lifting plate, a second connecting rod, a clamping rod and a lifting cylinder. The first connecting rod is hinged to the outer side of the output end of the hydraulic cylinder, the lifting plate is hinged to the other end of the first connecting rod, the second connecting rod is hinged to the bottom surface of the lifting plate, the clamping rod is hinged to the other end of the second connecting rod, and the lifting cylinder is connected to the inner side of the lifting plate by sliding.

[0013] As a preferred technical solution of the utility model, the lifting cylinder passes through the lifting plate, the lifting cylinder passes through the body and is connected to the body by sliding, the clamping rod passes through the right fuselage to the inside of the right fuselage, and the clamping rod is connected to the right fuselage by sliding.

[0014] As a preferred technical solution of the utility model, the lifting assembly includes an L-shaped plate, a first servo motor, a first bevel gear, a second bevel gear, a threaded rod, a limit bar and a limit groove. The L-shaped plate is fixedly arranged on the top surface of the machine body, the first servo motor is fixedly installed on the top surface of the L-shaped plate, the first bevel gear is fixedly arranged at the output end of the first servo motor, the second bevel gear is connected to the bottom of the first bevel gear by meshing, the threaded rod is fixedly arranged on the bottom surface of the second bevel gear, the limit bar is symmetrically fixed on the left and right sides of the lifting cylinder, and the limit groove is arranged through the top surface of the machine body.

[0015] As a preferred technical solution of the utility model, the bottom surface of the second bevel gear is connected to the top surface of the L-shaped plate by rotation, the threaded rod passes through the L-shaped plate, the outer side of the threaded rod is connected to the inner side of the lifting cylinder by threads, the limit bar is adapted to the limit groove, the limit bar is slidably connected to the body through the limit groove, a fixing rod is fixedly provided on the bottom surface of the lifting cylinder, and the bottom surface of the fixing rod is fixedly connected to the second servo motor.

[0016] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0017] The utility model provides a second arc-shaped clamping plate and a driving component. The second arc-shaped clamping plate cooperates with the first arc-shaped clamping plate to be close to each other, so that pressure vessels with different bottle body thicknesses can be clamped and fixed directly below the clamp, which makes it convenient for the clamp to disassemble and assemble the cover body, thereby improving the applicability of the device. The driving component can drive the second arc-shaped clamping plate to move inward while the first arc-shaped clamping plate moves inward. By providing a lifting component, the height of the second servo motor and the clamp can be adjusted by running the first servo motor to drive the first bevel gear to rotate. Since the threaded rod and the lifting cylinder have good self-locking properties, the lifting component can limit the position of the second servo motor after the height adjustment is completed, and the second servo motor is unlikely to shake, thereby improving the stability of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the main view of the utility model;

[0020] Figure 3 It is a schematic diagram of the left structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the bottom view of the utility model;

[0022] Among them: 1. body; 2. left fuselage; 3. right fuselage; 4. hydraulic cylinder; 5. first arc-shaped clamping plate; 6. second arc-shaped clamping plate; 7. first connecting rod; 8. lifting plate; 9. second connecting rod; 10. clamping rod; 11. lifting cylinder; 12. L-shaped plate; 13. first servo motor; 14. first bevel gear; 15. second bevel gear; 16. threaded rod; 17. limit strip; 18. limit groove; 19. fixing rod; 20. second servo motor; 21. clamp; 22. support plate. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0024] Example

[0025] Please refer to Figure 1-Figure 4As shown, the utility model provides a pressure test device for pressure vessel manufacturing, including a machine body 1, a first arc-shaped clamping plate 5 and a clamp 21. The left machine body 2 and the right machine body 3 are fixedly arranged on the bottom surface of the machine body 1. A support plate 22 is fixedly arranged on the outer side of the left machine body 2. A hydraulic cylinder 4 is fixedly installed on the top surface of the support plate 22. The output end of the hydraulic cylinder 4 passes through the left machine body 2. The first arc-shaped clamping plate 5 is fixedly arranged at the end of the output end of the hydraulic cylinder 4. A second arc-shaped clamping plate 6, a second servo motor 20 and a clamp 21 are arranged below the machine body 1. The bottom surface of the output end of the second servo motor 20 is fixedly arranged. A clamp 21 is hingedly connected, and a clamp hole is arranged inside the clamp 21. The clamp 21 is rotated to engage the clamp hole with the cover of the pressure vessel, and then the second servo motor 20 is operated to drive the clamp 21 to rotate, so that the cover can be disassembled or installed. The first arc-shaped clamp 5 and the second arc-shaped clamp 6 are symmetrically arranged directly below the clamp 21. The second arc-shaped clamp 6 cooperates with the first arc-shaped clamp 5 to be close to each other, so that pressure vessels with different bottle thicknesses can be clamped and fixed directly below the clamp 21, which makes it convenient for the clamp 21 to disassemble and assemble the cover, thereby improving the applicability of the device.

[0026] like Figure 1-Figure 4 As shown, a driving assembly is arranged outside the first arc-shaped clamping plate 5 and the second arc-shaped clamping plate 6, and the driving assembly is composed of a first connecting rod 7, a lifting plate 8, a second connecting rod 9, a clamping rod 10 and a lifting cylinder 11. The top surface of the body 1 is provided with a first installation cavity and a second installation cavity that penetrates to the bottom surface, and the first installation cavity and the second installation cavity extend into the left fuselage 2 and the right fuselage 3 respectively. The first connecting rod 7 is hingedly connected to the outside of the output end of the hydraulic cylinder 4, and the other end of the first connecting rod 7 is hingedly connected to the lifting plate 8, and the bottom surface of the lifting plate 8 is hingedly connected to the second connecting rod 9, and the other end of the second connecting rod 9 A card rod 10 is hingedly connected, and the first connecting rod 7 and the second connecting rod 9 are respectively arranged inside the first installation cavity and the second installation cavity. The card rod 10 passes through the right fuselage 3 to the inside of the right fuselage 3. A card slot adapted to the card rod 10 is arranged inside the right fuselage 3. The card rod 10 is slidably connected to the right fuselage 3 through the card slot. A lifting cylinder 11 is penetrated on the inner side of the lifting plate 8. The inner side of the lifting plate 8 is slidably connected to the outer side of the lifting cylinder 11. The lifting cylinder 11 passes through the body 1 and is slidably connected to the body 1. The driving assembly can drive the second arc-shaped clamping plate 6 to move inward while the first arc-shaped clamping plate 5 moves inward.

[0027] Specifically, the pressure vessel is placed directly below the clamp 21, and the hydraulic cylinder 4 is operated to drive the output end of the hydraulic cylinder 4 to extend, thereby driving the first arc-shaped clamping plate 5 to move inward. The extension of the output end of the hydraulic cylinder 4 drives the first connecting rod 7 to rotate upward, and the rotation of the first connecting rod 7 drives the lifting plate 8 to move upward. The lifting cylinder 11 can limit the moving direction of the lifting plate 8, and the lifting plate 8 never separates from the lifting cylinder 11 during the movement. The lifting plate 8 moves upward and drives the second connecting rod 9 to rotate upward. The rotation of the second connecting rod 9 drives the clamping rod 10 to approach the first arc-shaped clamping plate 5, thereby driving the second arc-shaped clamping plate 6 to approach the first arc-shaped clamping plate 5. The clamping rod 10 never separates from the clamping groove during the movement. The clamping groove guides and limits the movement of the clamping rod 10. When the first arc-shaped clamping plate 5 contacts and fits tightly against the body of the pressure vessel, the second arc-shaped clamping plate 6 just contacts and fits tightly against the body of the pressure vessel, thereby clamping and fixing the pressure vessel.

[0028] like Figure 1-Figure 3 As shown, a lifting assembly is arranged above the clamp 21, and the lifting assembly consists of an L-shaped plate 12, a first servo motor 13, a first bevel gear 14, a second bevel gear 15, a threaded rod 16, a limit strip 17 and a limit groove 18. The L-shaped plate 12 is fixedly arranged on the top surface of the body 1, and the first servo motor 13 is fixedly installed on the top surface of the L-shaped plate 12. The first bevel gear 14 is fixedly arranged on the output end of the first servo motor 13. The second bevel gear 15 is meshedly connected to the bottom of the first bevel gear 14. The bottom surface of the second bevel gear 15 is connected to the top surface of the L-shaped plate 12 by rotation. The bottom surface of the second bevel gear 15 is fixedly arranged with a threaded rod 16, which penetrates the L-shaped plate 12. The outer side of the threaded rod 16 is connected to the inner side of the lifting cylinder 11 by threading. The lifting cylinder 11 is fixedly arranged on the left and right sides. Symmetrical limit strips 17 are provided, and a limit groove 18 is provided on the top surface of the body 1 and extends through the bottom surface. The limit strip 17 is matched with the limit groove 18. The limit strip 17 is slidably connected to the body 1 through the limit groove 18. The limit strip 17 passes through the lifting plate 8 and is slidably connected to the lifting plate 8. A fixing rod 19 is fixedly provided on the bottom surface of the lifting cylinder 11, and the bottom surface of the fixing rod 19 is fixedly connected to the second servo motor 20. The first servo motor 13 drives the first bevel gear 14 to adjust the height of the second servo motor 20 and the clamp 21. Since the threaded rod 16 and the lifting cylinder 11 have good self-locking properties, the lifting assembly can limit the position of the second servo motor 20 after the height adjustment is completed, and the second servo motor 20 is unlikely to shake, thereby improving the stability of the clamp 21.

[0029] Specifically, when the height of the second servo motor 20 and the clamp 21 needs to be adjusted, the first servo motor 13 is operated to drive the first bevel gear 14 to rotate, and the rotation of the first bevel gear 14 drives the second bevel gear 15 to rotate, and the rotation of the second bevel gear 15 drives the threaded rod 16 to rotate, and the rotation of the threaded rod 16 drives the lifting cylinder 11 to move upward or downward, and the limit bar 17 cooperates with the limit groove 18 to guide and limit the movement of the lifting cylinder 11. The movement of the lifting cylinder 11 drives the second servo motor 20 and the clamp 21 to move, thereby adjusting the height of the second servo motor 20 and the clamp 21. The lifting cylinder 11 never separates from the lifting plate 8 during the up and down movement, and the limit bar 17 never separates from the limit groove 18 during the movement.

[0030] Specific working principle:

[0031] When the device is in use, the pressure vessel is placed directly below the clamp 21, and the hydraulic cylinder 4 is operated to drive the output end of the hydraulic cylinder 4 to extend, thereby driving the first arc-shaped clamp 5 to move inward, and the extension of the output end of the hydraulic cylinder 4 drives the first connecting rod 7 to rotate upward, and the rotation of the first connecting rod 7 drives the lifting plate 8 to move upward, and the upward movement of the lifting plate 8 drives the second connecting rod 9 to rotate upward, and the rotation of the second connecting rod 9 drives the clamping rod 10 to approach the first arc-shaped clamp 5, thereby driving the second arc-shaped clamp 6 to approach the first arc-shaped clamp 5, and when the first arc-shaped clamp 5 contacts and clings to the body of the pressure vessel, the second arc-shaped clamp 6 just contacts and clings to the body of the pressure vessel, thereby clamping and fixing the pressure vessel, rotating the clamp 21 to engage the clamping hole with the cover body of the pressure vessel, operating the second servo motor 20 to drive the clamp 21 to rotate, and the cover body is disassembled, and then the pressure vessel is pressure tested.

[0032] When the height of the second servo motor 20 and the clamp 21 needs to be adjusted, the first servo motor 13 is operated to drive the first bevel gear 14 to rotate, and the rotation of the first bevel gear 14 drives the second bevel gear 15 to rotate, and the rotation of the second bevel gear 15 drives the threaded rod 16 to rotate, and the rotation of the threaded rod 16 drives the lifting cylinder 11 to move upward or downward, and the limit bar 17 cooperates with the limit groove 18 to guide and limit the movement of the lifting cylinder 11. The movement of the lifting cylinder 11 drives the second servo motor 20 and the clamp 21 to move, thereby adjusting the height of the second servo motor 20 and the clamp 21. Since the threaded rod 16 and the lifting cylinder 11 have good self-locking properties, after the height adjustment is completed, the lifting assembly can limit the position of the second servo motor 20, and the second servo motor 20 is unlikely to shake, thereby improving the stability of the clamp 21.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A pressure test device for manufacturing a pressure vessel, comprising a machine body (1), a first arc-shaped clamping plate (5) and a clamp (21), wherein the first arc-shaped clamping plate (5) and the clamp (21) are arranged below the machine body (1), characterized in that: A second arc-shaped clamping plate (6), wherein the second arc-shaped clamping plate (6) is arranged below the machine body (1), and the second arc-shaped clamping plate (6) cooperates with the first arc-shaped clamping plate (5) to be close to each other so as to clamp and fix pressure containers with different bottle thicknesses; A driving assembly, the driving assembly being arranged outside the first arc-shaped clamping plate (5) and the second arc-shaped clamping plate (6), and the driving assembly can drive the second arc-shaped clamping plate (6) to move inwards while the first arc-shaped clamping plate (5) moves inwards; A lifting component is arranged above the clamp (21), and the lifting component can adjust the height of the clamp (21).

2. The pressure testing device for manufacturing a pressure vessel according to claim 1, characterized in that: A left fuselage (2) and a right fuselage (3) are fixedly arranged on the bottom surface of the machine body (1); a support plate (22) is fixedly arranged on the outer side of the left fuselage (2); a hydraulic cylinder (4) is fixedly installed on the top surface of the support plate (22); an output end of the hydraulic cylinder (4) is fixedly connected to the outer side of the first arc-shaped clamping plate (5); a second servo motor (20) is arranged below the machine body (1); and an output end of the second servo motor (20) is connected to a clamp (21) via a hinge.

3. The pressure testing device for pressure vessel manufacturing according to claim 2, characterized in that: The driving assembly comprises a first connecting rod (7), a lifting plate (8), a second connecting rod (9), a clamping rod (10) and a lifting cylinder (11); the first connecting rod (7) is connected to the outer side of the output end of the hydraulic cylinder (4) by a hinge; the lifting plate (8) is connected to the other end of the first connecting rod (7) by a hinge; the second connecting rod (9) is connected to the bottom surface of the lifting plate (8) by a hinge; the clamping rod (10) is connected to the other end of the second connecting rod (9) by a hinge; and the lifting cylinder (11) is connected to the inner side of the lifting plate (8) by sliding.

4. The pressure testing device for manufacturing a pressure vessel according to claim 3, characterized in that: The lifting cylinder (11) passes through the lifting plate (8), the lifting cylinder (11) passes through the machine body (1) and is connected to the machine body (1) by sliding, the clamping rod (10) passes through the right machine body (3) to the inside of the right machine body (3), and the clamping rod (10) is connected to the right machine body (3) by sliding.

5. The pressure testing device for manufacturing a pressure vessel according to claim 4, characterized in that: The lifting assembly comprises an L-shaped plate (12), a first servo motor (13), a first bevel gear (14), a second bevel gear (15), a threaded rod (16), a limit strip (17) and a limit slot (18); the L-shaped plate (12) is fixedly arranged on the top surface of the machine body (1); the first servo motor (13) is fixedly installed on the top surface of the L-shaped plate (12); the first bevel gear (14) is fixedly arranged at the output end of the first servo motor (13); the second bevel gear (15) is connected to the bottom of the first bevel gear (14) by meshing; the threaded rod (16) is fixedly arranged on the bottom surface of the second bevel gear (15); the limit strip (17) is symmetrically fixed to the left and right sides of the lifting cylinder (11); and the limit slot (18) is arranged through the top surface of the machine body (1).

6. The pressure testing device for manufacturing a pressure vessel according to claim 5, characterized in that: The bottom surface of the second bevel gear (15) is connected to the top surface of the L-shaped plate (12) by rotation, the threaded rod (16) passes through the L-shaped plate (12), the outer side of the threaded rod (16) is connected to the inner side of the lifting cylinder (11) by thread, the limit bar (17) is matched with the limit groove (18), the limit bar (17) is slidably connected to the body (1) through the limit groove (18), the bottom surface of the lifting cylinder (11) is fixedly provided with a fixing rod (19), and the bottom surface of the fixing rod (19) is fixedly connected to the second servo motor (20).

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