A pressure vessel welding auxiliary device

Abstract

The utility model discloses a pressure vessel welding auxiliary device, comprising a shell, a welding gun is arranged on one side of the inner wall of the shell, and an auxiliary device is arranged on the other side of the inner wall of the shell. The utility model relates to the field of welding technology, and the longitudinal positions of the grinding wheel and the first fixed sleeve can be adjusted through the first driving wheel, the first belt and the first fixed seat, and then the grinding wheel is driven to move up and down under the action of the first driving wheel, so that different types of welds can be adjusted and polished after welding the pressure vessel, and at the same time, manual up and down grinding is not required, and the up and down position of the grinding wheel can be controlled by adjusting the first driving wheel, which solves the problem that the worker needs to climb up and down to work when manually grinding, but the up and down climbing affects the physical strength of the worker and thus affects the grinding quality.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a pressure vessel welding auxiliary device. Background Art

[0002] A pressure vessel refers to a closed device that contains gas or liquid and bears a certain pressure. Especially in the petrochemical field, many pressure vessels are needed, such as scrubbing towers, depropanizers, high-pressure discharge tanks, solvent recovery towers, etc.

[0003] These pressure vessels are basically cylindrical structures with large volumes. The general technology is to weld them in multiple sections. In the existing welding process, the two sections of the container shell are fixed, and the workers hold welding guns to weld the joints at the lowest and highest points. The lowest welding requires leaning over or lying on the back, and the highest welding requires the use of a ladder. When the welding is completed, there will be extra seams on the surface of the pressure vessel.

[0004] When the prior art is used, manual labor requires the aid of ladders, which makes it difficult to ensure safety. The manual grinding process is time-consuming and labor-intensive, which easily affects the grinding efficiency. Manual grinding requires climbing up and down to work, but climbing up and down affects the physical strength of the workers, thereby affecting the grinding quality. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a pressure vessel welding auxiliary device, which solves the problem that the prior art requires manual labor to rely on ladders during grinding, which is difficult to ensure safety, and the manual up and down grinding process is time-consuming and labor-intensive, which easily affects the grinding efficiency. When manual grinding is performed, it is necessary to work by climbing up and down, but climbing up and down affects the physical strength of the workers and thus affects the grinding quality.

[0006] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a pressure vessel welding auxiliary device, comprising a shell, a welding gun is arranged on one side of the inner wall of the shell, an auxiliary device is arranged on the other side of the inner wall of the shell, and a grinding device comprises a first driving wheel, a first belt, a first fixed seat, a first fixed sleeve, a first limiting rod, a first motor and a grinding wheel. Two first driving wheels are provided and are respectively installed on the upper and lower sides of one side of the inner wall of the shell. The two first driving wheels are rotatably connected by a first belt, a first fixed seat is fixedly connected to one side of the outer wall of the first belt, a first fixed sleeve is fixedly connected to one side of the outer wall of the first fixed seat, a first limiting rod is inserted into the inner wall of the first fixing sleeve, the top of the first limiting rod is fixedly connected to the top of the shell, the outer wall of the first fixed sleeve is fixedly connected to the first motor, and a grinding wheel is installed at the output end of the first motor.

[0007] Preferably, the bottom of the shell is fixedly connected to a base, a placement plate is provided above the base, both sides of the top of the placement plate are fixedly connected to fixing plates, the sides of the two fixing plates close to each other are fixedly connected to telescopic rods, and the output end of the telescopic rod is connected to an arc-shaped clamping plate by bolts.

[0008] Preferably, the top of the inner wall of the shell is rotatably connected to the first electric telescopic rod through a bearing, the bottom of the first electric telescopic rod is fixedly connected to a cross plate, the inner wall of the cross plate is inserted with a screw, the screw passes through the inside of the cross plate, the bottom of the screw is fixedly connected to an arc-shaped pressure plate, a spring is installed between the cross plate and the arc-shaped pressure plate, and the outer wall of the screw is connected to a nut through a thread.

[0009] Preferably, the inner wall of the shell is provided with two second driving wheels, and are respectively installed on the upper and lower sides of the other side of the inner wall of the shell, the two second driving wheels are rotatably connected by a second belt, one side of the outer wall of the second belt is fixedly connected with a second fixing seat, one side of the outer wall of the second fixing seat is fixedly connected with a second fixing sleeve, the inner wall of the second fixing sleeve is inserted with a second limiting rod, the top of the second limiting rod is fixedly connected to the top of the shell, the outer wall of the second fixing sleeve is fixedly connected with a second electric telescopic rod on one side close to the first driving wheel, and the second electric telescopic rod is fixedly connected to the welding gun.

[0010] Preferably, the top of the driving rod is fixedly connected to the bottom of the placing plate, the bottom of the placing plate is fixedly connected to the driving rod, the end of the driving rod extending to the inside of the base is rotatably connected to the inner wall of the base through a bearing, the outer wall of the driving rod is fixedly connected to a worm wheel, the outer wall of the worm wheel is meshingly connected to a worm, the outer wall of the worm wheel is rotatably connected to the inner wall of the base through a bearing, the end of the worm extending to the outer wall of the base is fixedly connected to a second motor, one side of the outer wall of the base is fixedly connected to a fixed base, and the outer wall of the second motor is fixedly connected to the outer wall of the base through the fixed base.

[0011] Beneficial Effects

[0012] The utility model provides a pressure vessel welding auxiliary device. It has the following beneficial effects: the pressure vessel welding auxiliary device can adjust the longitudinal position of the grinding wheel and the first fixed sleeve through the first driving wheel, the first belt and the first fixed seat, and then drive the grinding wheel to move up and down under the action of the first driving wheel, so that different types of welds can be adjusted and polished after welding the pressure vessel, and at the same time, it does not need to be manually polished up and down, and only needs to adjust the first driving wheel to control the up and down position of the grinding wheel, which solves the problem that when manually polishing, it is necessary to climb up and down to work, but climbing up and down affects the physical strength of the workers and thus affects the polishing quality.

[0013] The worm and the worm wheel cooperate to drive the placement plate to rotate, thereby adjusting the placement direction of the pressure vessel, and the adjustment can be made at will. After the adjustment is completed, the self-locking property of the worm and the worm wheel is utilized to prevent the placement orientation of the pressure vessel from being changed after it is fixed. This solves the problem in the prior art that when the pressure vessel needs to be welded in different directions, it takes too long to rotate the pressure vessel, thereby reducing work efficiency. By rotating the welded pressure vessel, uninterrupted annular welding of the outer wall of the pressure vessel can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the appearance of the utility model;

[0016] Figure 3 for Figure 1 A schematic diagram of the structure of the second fixing seat, the second fixing sleeve and the welding gun;

[0017] Figure 4 for Figure 1 A schematic diagram of the structure of the middle telescopic rod, the arc-shaped splint and the fixing plate;

[0018] Figure 5 for Figure 1 Schematic diagram of the structure of the first motor, grinding wheel and first limit rod.

[0019] In the figure: 1, shell, 2, base, 3, arc-shaped pressure plate, 4, fixed plate, 5, first driving wheel, 6, first belt, 7, first fixed seat, 8, first fixed sleeve, 9, placement plate, 10, first limiting rod, 11, first motor, 12, grinding wheel, 13, first electric telescopic rod, 14, cross plate, 15, screw, 16, second driving wheel, 17, second belt, 18, second limiting rod, 19, second fixed seat, 20, second fixed sleeve, 21, telescopic rod, 22, arc-shaped clamping plate, 23, fixed base, 24, second motor, 25, worm, 26, driving rod, 27, worm wheel, 28, second electric telescopic rod, 29, welding gun, 30, nut, 31, spring. DETAILED DESCRIPTION

[0020] 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.

[0021] The prior art requires manual labor with the aid of a ladder, which is difficult to ensure safety, and the manual grinding process is time-consuming and labor-intensive, which easily affects the grinding efficiency. Manual grinding requires climbing up and down to work, but climbing up and down affects the worker's physical strength and thus affects the grinding quality.

[0022] In view of this, the utility model provides a pressure vessel welding auxiliary device. The prior art requires manual labor with the help of a ladder during grinding, which makes it difficult to ensure safety. The manual up and down grinding process is time-consuming and labor-intensive, which easily affects the grinding efficiency. Manual grinding requires climbing up and down to work, but climbing up and down affects the workers' physical strength, thereby affecting the grinding quality.

[0023] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0024] Embodiment 1: Figure 1 , 2 As can be seen from 4, a pressure vessel welding auxiliary device comprises a shell 1, a welding gun 29 is arranged on one side of the inner wall of the shell 1, an auxiliary device is arranged on the other side of the inner wall of the shell 1, and a grinding device comprises a first driving wheel 5, a first belt 6, a first fixed seat 7, a first fixed sleeve 8, a first limiting rod 10, a first motor 11 and a grinding wheel 12. Two first driving wheels 5 are provided, and are respectively installed on the upper and lower sides of one side of the inner wall of the shell 1. The two first driving wheels 5 are rotatably connected through the first belt 6, a first fixed seat 7 is fixedly connected to one side of the outer wall of the first belt 6, a first fixed sleeve 8 is fixedly connected to one side of the outer wall of the first fixed seat 7, and the first fixed sleeve 8 ensures that the grinding wheel 12 maintains a horizontal position. The inner wall of the first fixed sleeve 8 is plugged with a first limiting rod 10, and the top of the first limiting rod 10 is fixedly connected to the top of the shell 1, and the outer wall of the first fixed sleeve 8 is fixedly connected to the first motor 11, and the output end of the first motor 11 is installed with a grinding wheel 12. The model of the first motor 11 is not limited;

[0025] In the specific implementation process, it is worth pointing out that the longitudinal positions of the grinding wheel 12 and the first fixing sleeve 8 can be adjusted through the first driving wheel 5, the first belt 6 and the first fixing seat 7, and then the grinding wheel 12 is driven to move up and down under the action of the first driving wheel 5. In this way, the welding seams of different heights of the pressure vessel can be adjusted and polished. At the same time, there is no need for manual up and down grinding. It is only necessary to adjust the first driving wheel 5 to control the up and down position of the grinding wheel 12;

[0026] Further, the bottom of the housing 1 is fixedly connected to a base 2, a placement plate 9 is arranged above the base 2, and both sides of the top of the placement plate 9 are fixedly connected to fixed plates 4, and the sides of the two fixed plates 4 close to each other are fixedly connected to telescopic rods 21, and the output end of the telescopic rod 21 is connected to an arc-shaped clamping plate 22 by bolts. The model of the telescopic rod 21 is not limited, and it can meet the technical solution;

[0027] In the specific implementation process, it is worth pointing out that, under the cooperation of the telescopic rod 21 and the arc-shaped clamping plate 22, when the pressure vessel is placed on the placement plate 9, the arc-shaped clamping plate 22 is driven by the telescopic rod 21 to fix the pressure vessel, so that the pressure vessel can be better clamped during welding to avoid loosening;

[0028] Further, the top of the inner wall of the housing 1 is rotatably connected to the first electric telescopic rod 13 through a bearing, the bottom of the first electric telescopic rod 13 is fixedly connected to a transverse plate 14, the inner wall of the transverse plate 14 is plugged with a screw 15, the screw 15 runs through the inside of the transverse plate 14, the bottom of the screw 15 is fixedly connected to an arc-shaped pressing plate 3, a spring 31 is installed between the transverse plate 14 and the arc-shaped pressing plate 3, the outer wall of the screw 15 is threadedly connected to a nut 30, and the clamping force of the first electric telescopic rod 13 on the pressure vessel can be observed through the spring 31, ensuring the stability of the weld butt joint while avoiding damage to the surface of the pressure vessel;

[0029] In the specific implementation process, it is worth pointing out that the first electric telescopic rod 13 drives the arc-shaped pressing plate 3 at the bottom of the horizontal plate 14, and the arc-shaped pressing plate 3 is positionally restricted by the screw 15 and the nut 30. When the first electric telescopic rod 13 is working, the spring 31 elastically deforms when the arc-shaped pressing plate 3 fits the pressure vessel, so that the weld of the pressure vessel is aligned, so that the pressure vessel is better clamped, and the pressure vessel is better fitted during the welding process;

[0030] Specifically, when using the pressure vessel welding auxiliary device, the longitudinal positions of the grinding wheel 12 and the first fixed sleeve 8 can be adjusted through the first belt 6 and the first fixed seat 7, and then under the action of the first driving wheel 5, the telescopic rod 21 drives the arc clamping plate 22 to better clamp the bottom of the pressure vessel during the pressure vessel welding, thereby avoiding the problem that the pressure vessel is prone to shaking when rotating during welding. The first electric telescopic rod 13 at the top drives the arc pressure plate 3 at the bottom of the cross plate. When the first electric telescopic rod 13 is working, the arc pressure plate 3 fits the pressure vessel spring 31 for elastic deformation, so that it can better clamp the pressure vessel, fit better during the welding process, and align the pressure vessel weld.

[0031] Embodiment 2: By Figure 1 , 2As can be seen from Figures 3 and 4, the inner wall of the shell 1 is provided with two second driving wheels 16, which are respectively installed on the upper and lower sides of the other side of the inner wall of the shell 1, and the two second driving wheels 16 are rotatably connected by a second belt 17, and a second fixing seat 19 is fixedly connected to one side of the outer wall of the second belt 17, and a second fixing sleeve 20 is fixedly connected to one side of the outer wall of the second fixing seat 19, and a second limiting rod 18 is inserted into the inner wall of the second fixing sleeve 20, and the top of the second limiting rod 18 is fixedly connected to the top of the shell 1, and a second electric telescopic rod 28 is fixedly connected to one side of the outer wall of the second fixing sleeve 20 close to the first driving wheel 5, and the second electric telescopic rod 28 is fixedly connected to the welding gun 29;

[0032] In the specific implementation process, it is worth pointing out that under the action of the second driving wheel 16, the second fixing sleeve 20 on the second limiting rod 18 is driven, and the welding gun 29 outside thereof is laterally displaced through the second electric telescopic 28, so that the pressure vessel can be better welded;

[0033] Furthermore, a driving rod 26 is fixedly connected to the bottom of the placement plate 9, and one end of the driving rod 26 extending to the inside of the base 2 is rotatably connected to the inner wall of the base 2 through a bearing, and the outer wall of the driving rod 26 is fixedly connected to a worm wheel 27, and the outer wall of the worm wheel 27 is meshedly connected to a worm 25, and the outer wall of the worm 25 is rotatably connected to the inner wall of the base 2 through a bearing, and one end of the worm 25 extending to the outer wall of the base 2 is fixedly connected to a second motor 24, and one side of the outer wall of the base 2 is fixedly connected to a fixed base 23, and the outer wall of the second motor 24 is fixedly connected to the outer wall of the base 2 through the fixed base 23;

[0034] In the specific implementation process, it is worth pointing out that, under the cooperation of the second motor 24, the worm 25 and the worm wheel 27, when welding the side of the pressure vessel, the second motor 24 is used to drive the worm 25 to rotate, so that it drives the worm wheel 27 to rotate, thereby moving the placement direction of the pressure vessel, and the self-locking function of the worm 25 and the worm wheel 27 can be used to make the pressure vessel stable after being fixed without shaking, and the outer wall of the pressure vessel can be continuously welded in an annular manner by rotating the welded pressure vessel;

[0035] Specifically, on the basis of the above-mentioned embodiment 1, when the pressure vessel is welded, the second driving wheel 16 drives the second fixing sleeve 20 and the welding gun 29, and the welding gun 29 is moved horizontally by the control of the second electric telescopic rod 28, so that the welding gun 29 can better weld the surface of the pressure vessel, and the second fixing sleeve 20 is vertically displaced by the second driving wheel 16 to quickly adjust the upper and lower positions of the welding gun 29 better. When the welding rod on the welding gun 29 becomes shorter and shorter, the welding gun is controlled to be telescopic by the second electric telescopic rod 28. With the cooperation of the second motor 24, the worm 25 and the worm gear 27, when the side of the pressure vessel is welded, the second motor 24 is used to drive the worm 25 to rotate, so that it drives the worm gear 27 to rotate, thereby moving the placement direction of the pressure vessel, and better working efficiency is achieved when the pressure vessel is welded.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0037] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0038] Although 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 of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure vessel welding auxiliary device, comprising a shell (1), characterized in that: A welding gun (29) is arranged on one side of the inner wall of the shell (1), and an auxiliary device is arranged on the other side of the inner wall of the shell (1); The grinding device comprises a first driving wheel (5), a first belt (6), a first fixing seat (7), a first fixing sleeve (8), a first limiting rod (10), a first motor (11) and a grinding wheel (12); Two first driving wheels (5) are provided and are respectively mounted on one side of the inner wall of the shell (1) at the top and the bottom. The two first driving wheels (5) are rotationally connected via a first belt (6). A first fixing seat (7) is fixedly connected to one side of the outer wall of the first belt (6). A first fixing sleeve (8) is fixedly connected to one side of the outer wall of the first fixing seat (7). A first limiting rod (10) is inserted into the inner wall of the first fixing sleeve (8). The top of the first limiting rod (10) is fixedly connected to the top of the shell (1). A first motor (11) is fixedly connected to the outer wall of the first fixing sleeve (8). A grinding wheel (12) is mounted on the output end of the first motor (11).

2. A pressure vessel welding auxiliary device according to claim 1, characterized in that: The bottom of the shell (1) is fixedly connected to a base (2), a placement plate (9) is arranged above the base (2), both sides of the top of the placement plate (9) are fixedly connected to fixing plates (4), and the sides of the two fixing plates (4) close to each other are fixedly connected to telescopic rods (21), and the output end of the telescopic rod (21) is connected to an arc-shaped clamping plate (22) via bolts.

3. A pressure vessel welding auxiliary device according to claim 1, characterized in that: The top of the inner wall of the shell (1) is rotatably connected to a first electric telescopic rod (13) via a bearing, the bottom of the first electric telescopic rod (13) is fixedly connected to a transverse plate (14), the inner wall of the transverse plate (14) is plugged with a screw rod (15), the screw rod (15) passes through the interior of the transverse plate (14), the bottom of the screw rod (15) is fixedly connected to an arc-shaped pressing plate (3), a spring (31) is installed between the transverse plate (14) and the arc-shaped pressing plate (3), and the outer wall of the screw rod (15) is connected to a nut (30) via a thread.

4. A pressure vessel welding auxiliary device according to claim 1, characterized in that: The inner wall of the shell (1) is provided with two second driving wheels (16), which are respectively installed on the upper and lower sides of the other side of the inner wall of the shell (1); the two second driving wheels (16) are rotationally connected via a second belt (17); a second fixing seat (19) is fixedly connected to one side of the outer wall of the second belt (17); a second fixing sleeve (20) is fixedly connected to one side of the outer wall of the second fixing seat (19); a second limiting rod (18) is inserted into the inner wall of the second fixing sleeve (20); the top of the second limiting rod (18) is fixedly connected to the top of the shell (1); a second electric telescopic rod (28) is fixedly connected to one side of the outer wall of the second fixing sleeve (20) close to the first driving wheel (5); and the second electric telescopic rod (28) is fixedly connected to the welding gun (29).

5. A pressure vessel welding auxiliary device according to claim 2, characterized in that: The bottom of the placement plate (9) is fixedly connected to a driving rod (26); one end of the driving rod (26) extending to the inside of the base (2) is rotatably connected to the inner wall of the base (2) via a bearing; the outer wall of the driving rod (26) is fixedly connected to a worm wheel (27); the outer wall of the worm wheel (27) is meshingly connected to a worm (25); the outer wall of the worm (25) is rotatably connected to the inner wall of the base (2) via a bearing; one end of the worm (25) extending to the outer wall of the base (2) is fixedly connected to a second motor (24); one side of the outer wall of the base (2) is fixedly connected to a fixed base (23); the outer wall of the second motor (24) is fixedly connected to the outer wall of the base (2) via the fixed base (23).

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