Welding device for water diversion steel branch pipe stiffening ring of pumped storage power station

Abstract

The invention relates to a pumped storage power station diversion steel branch pipe stiffening ring welding device, and relates to the field of stiffening ring welding technical equipment.The pumped storage power station diversion steel branch pipe stiffening ring welding device comprises a rotating power part, a supporting assembly is arranged on one side of the rotating power part, an angle adjusting part is arranged on the supporting assembly, and a clamping assembly is arranged at the bottom of the angle adjusting part; the angle adjusting component drives the clamping component to conduct angle conversion, and a welding gun is fixed to the clamping component. The device has the advantages that the advantage of semi-automatic welding is utilized, the welding efficiency of the stiffening ring of the pressure steel branch pipe is improved, and meanwhile the welding quality of the stiffening ring of the pressure steel pipe is improved.

Description

Technical Field

[0001] The present application relates to the field of stiffening ring welding technology and equipment, and in particular to a stiffening ring welding device for a water diversion steel branch pipe of a pumped storage power station. Background Art

[0002] When building a peak-shaving and frequency-regulating pumped-storage power station, a large number of stiffening rings are included, and the stiffening rings have large diameters, thick steel plates, and large welding angles. Each pressure steel branch has 216 stiffening rings, and the welding form with the pressure steel branch is a double-sided fillet weld. The average diameter of the pressure steel branch is 3000mm, and the welding volume of the stiffening rings of the water diversion steel branch reaches more than 4070 meters. The average thickness of the stiffening ring plate is 44mm, and the welding angle of the weld is 0.7 times that of the weld, and the single-side welding angle reaches 31mm.

[0003] Only statistical analysis shows that the average speed of a single welder welding stiffening rings is 3m / h. The total time required to complete the welding of pressure steel branch pipe stiffening rings is 2713 hours. Based on 20 hours of work per day, it takes about 45.2 days to complete all the pressure steel branch pipe stiffening rings. The time arranged for the welding process of pressure steel branch pipe stiffening rings in production is only 15 days, that is, at least 10 welders must be arranged to complete the work of this process according to the schedule.

[0004] In view of the above-mentioned related technologies, the inventor believes that the welding workload of the pressure steel branch pipe stiffening ring is huge, time-consuming and labor-intensive, and a large amount of manual welding is the shortcoming of the current pressure steel branch pipe stiffening ring welding. Manual welding is easily affected by the emotions and fatigue of the on-site operators, which can easily cause unstable welding quality, resulting in rework affecting the cycle and welding quality. Summary of the invention

[0005] In order to solve the problem of utilizing the advantages of semi-automatic welding, improving the welding efficiency of pressure steel branch pipe stiffening rings, and at the same time improving the welding quality of pressure steel branch pipe stiffening rings.

[0006] The present application provides a pumped storage power station water diversion steel branch pipe stiffening ring welding device adopts the following technical solution:

[0007] A pumped storage power station water diversion steel branch pipe stiffening ring welding device includes a rotating power component, a support assembly is arranged on one side of the rotating power component, an angle adjustment component is arranged on the support assembly, a clamping assembly is arranged at the bottom of the angle adjustment component, the angle adjustment component drives the clamping component to change the angle, and a welding gun is fixed on the clamping assembly.

[0008] Optionally, a plurality of the support assemblies are disposed on both sides of the stiffening ring, the support assemblies include support columns, the stiffening ring is located between the support columns, and the support columns are equidistant from the stiffening ring.

[0009] Optionally, the bottom of the sliding track is fixedly connected to the upper surface of the working platform, and the driving end of the sliding track is fixedly connected to the bottom end of the supporting column.

[0010] Optionally, the angle adjustment component includes a positioning diagonal support rod hingedly connected to the supporting component, and the clamping assembly is installed on the positioning diagonal support rod.

[0011] Optionally, a positioning wheel is rotatably provided on one side of the positioning diagonal support rod close to the stiffening ring, and the positioning wheel is in relative abutment with the side wall of the stiffening ring.

[0012] Optionally, a clamping part is provided on the side of the positioning diagonal strut facing away from the stiffening ring, one end of the clamping part is fixedly connected to the support assembly, and the other end of the clamping part is fixedly connected to the positioning diagonal strut, and the clamping part pushes the positioning diagonal strut to move toward the side close to the stiffening ring.

[0013] Optionally, the positioning diagonal support rod is hinged with a vertical support rod, and the vertical support rod is vertically arranged.

[0014] Optionally, a distance micro-adjuster is fixedly provided on the vertical support rod, the distance micro-adjuster is fixedly connected to the vertical support rod, the output end of the distance micro-adjuster is fixedly connected to the clamping assembly, and the distance micro-adjuster drives the clamping assembly to move along the axial direction of the stiffening ring.

[0015] Optionally, the output end of the distance fine-adjuster is fixedly connected to a reciprocating swing device, the output end of the reciprocating swing device is fixedly connected to the clamping assembly, and the reciprocating swing device drives the clamping assembly to rotate.

[0016] Optionally, the swing axis of the reciprocating swing device is parallel to the muzzle axis of the welding gun.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. The reciprocating swing device can adjust its swing frequency through the controller. The speed of multi-layer and multi-pass welding can be adjusted by adjusting the swing frequency and swing amplitude, so that the weld width and number of passes meet the specification requirements and the weld formation is more beautiful.

[0019] 2. Distance micro-adjuster is used to adjust the distance after multi-layer welding to ensure uniform thickness of each weld, beautiful shape and welding quality.

[0020] 3.1 set of tooling is equipped with 2 carbon dioxide welding guns, which are arranged on both sides of the stiffening ring of the pressure steel branch pipe respectively, so as to achieve double-sided synchronous welding of a single stiffening ring and form it at the same time, thereby improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side schematic diagram of a pumped-storage power station water diversion steel branch pipe stiffening ring welding device in an embodiment of the present application.

[0022] Figure 2 It is a schematic diagram of the working surface of a pumped-storage power station water diversion steel branch pipe stiffening ring welding device in an embodiment of the present application.

[0023] Figure 3 It is a schematic diagram of the angle adjustment component of a pumped-storage power station water diversion steel branch pipe stiffening ring welding device in an embodiment of the present application.

[0024] Explanation of the accompanying drawings: 1. Rotating power component; 11. Base; 12. Power assembly; 2. Stiffening ring; 3. Support assembly; 31. Working platform; 32. Sliding track; 33. Support column; 4. Angle adjustment component; 41. Connector; 42. Positioning diagonal support rod; 43. Tightening part; 44. Positioning wheel; 45. Universal joint; 46. Vertical support rod; 47. Distance fine adjuster; 48. Reciprocating swing device; 5. Clamping assembly; 6. Welding gun. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0027] The following is combined with Figure 1-2 This application is described in further detail.

[0028] The present application embodiment discloses a pumped storage power station water diversion steel branch pipe stiffening ring welding device. Figure 1 , Figure 2 A pumped storage power station water diversion steel branch pipe stiffening ring welding device includes a rotating power component 1, which drives the stiffening ring 2 to rotate. A support assembly 3 is arranged on one side of the rotating power component 1, and two support assemblies 3 are arranged opposite to each other. The two support assemblies 3 are respectively located on both sides of the stiffening ring 2, and the distance between the two opposite support assemblies 3 and the stiffening ring 2 is the same. An angle adjustment component 4 is arranged on the support assembly 3, and the angle adjustment component 4 can adjust the angle change of the clamping component 5. A clamping component 5 is arranged at the bottom of the angle adjustment component 4, and a welding gun 6 is fixed on the clamping component 5.

[0029] The rotating power component 1 includes a horizontally arranged base 11, on which a plurality of power components 12 are relatively arranged. In some embodiments, four power components 12 are relatively arranged, and the four power components 12 are arranged at four corners, and the working surfaces of the four power components 12 abut against the outside of the stiffening ring 2. The power components 12 rotate the stiffening ring 2 through friction, and the power components 12 are arranged parallel to the axial direction of the stiffening ring 2.

[0030] The support assembly 3 includes a working platform 31, a sliding track 32 and a supporting column 33 arranged on one side of the stiffening ring 2. The working platform 31 is a rectangular frame structure, and the working platform 31 is arranged with an opening on one side relative to the stiffening ring 2, so that the stiffening ring 2 can extend into the interior of the working platform 31, and the welding gun 6 located on the working platform 31 welds the side wall of the stiffening ring 2.

[0031] The lower surface of the sliding track 32 is parallel and fixedly connected to the upper surface of the working platform 31, and the working end of the sliding track 32 is fixedly connected to the lower end of the supporting column 33. The supporting column 33 is located on one side of the stiffening ring 2 and is fixedly provided with an angle adjustment component 4.

[0032] The angle adjustment component 4 includes a connecting piece 41 disposed on the supporting column 33, and the connecting piece 41 is fixedly connected to the supporting column 33. A positioning diagonal support rod 42 is disposed on the connecting piece 41, and the bottom of the positioning diagonal support rod 42 is hinged to the connecting piece 41 through a hinge, and the positioning diagonal support rod 42 can rotate to adjust the position of the welding gun 6.

[0033] A tightening part 43 is provided on the side of the positioning diagonal brace 42 away from the stiffening ring 2, and one end of the tightening part 43 close to the positioning diagonal brace 42 is fixedly connected to the top of the positioning diagonal brace 42, and one end of the tightening part 43 close to the support column 33 is fixedly connected to the top of the support column 33. In some embodiments, the tightening part 43 is a spring, and when the spring is in a free state, the spring pushes the positioning diagonal brace 42 to rotate toward the side close to the stiffening ring 2.

[0034] A positioning wheel 44 is provided at the top end of the positioning diagonal brace rod 42 near the stiffening ring 2, and the positioning wheel 44 is rotatably connected to the positioning diagonal brace rod 42. The outer wall of the positioning wheel 44 abuts against the side wall of the stiffening ring 2. When the stiffening ring 2 rotates, the positioning wheel 44 can continuously abut and roll along the side wall of the stiffening ring 2 to adjust the angle between the positioning diagonal brace rod 42 and the support column 33.

[0035] The tightening device is used to assist the positioning wheel 44 and increase the tightening force so that the positioning wheel 44 can fit tightly against the surface of the stiffening ring 2 .

[0036] A vertical support rod 46 is hingedly provided on the positioning diagonal support rod 42, and the vertical support rod 46 is vertically provided. The vertical support rod 46 is connected to the positioning diagonal support rod 42 through a universal joint 45, and the universal joint 45 connects the positioning diagonal support rod 42 and the vertical support rod 46 through bolts. The universal joint 45 is used to adjust the change in the angle of the positioning diagonal support rod 42 caused by the change in the thickness of the stiffening ring 2, thereby adjusting the verticality of the vertical support rod 46, thereby adjusting the position of the welding gun 6.

[0037] When the positioning diagonal support rod 42 changes its angle with the support column 33 driven by the positioning wheel, the universal joint 45 drives the vertical support rod 46 and the positioning diagonal support rod 42 to rotate, so that the vertical support rod 46 always maintains a vertical state.

[0038] A distance micro-adjuster 47 is horizontally arranged at the bottom of the vertical support rod 46, and the distance micro-adjuster 47 is fixedly connected to the bottom of the vertical support rod 46. The output end of the distance micro-adjuster 47 is arranged horizontally, and the distance micro-adjuster 47 drives the welding gun 6 to move in the horizontal direction, which is used for distance adjustment after welding of multiple layers of welds, so as to ensure that the thickness of each weld is uniform, the shape is beautiful, and the welding quality is guaranteed.

[0039] The output end of the distance micro-adjuster 47 is provided with a reciprocating swing device 48, which can move along the axis direction of the stiffening ring 2 under the adjustment of the distance micro-adjuster 47, thereby driving the welding gun 6 to move along the axis direction of the stiffening ring 2. The reciprocating swing device 48 can adjust its swing frequency through the controller, and the speed of multi-layer and multi-pass welding can be adjusted by adjusting the swing frequency and swing amplitude, so that the weld width and the number of passes meet the specification requirements, and the weld formation is more beautiful.

[0040] The clamping assembly 5 is located at the bottom of the reciprocating swing device 48. The clamping assembly 5 is a part that can fix the welding gun. The clamping assembly 5 is fixedly connected to the output end of the reciprocating swing device 48. The side of the clamping assembly 5 away from the reciprocating swing device 48 is fixedly connected to the welding gun 6. The gun head of the welding gun 6 is parallel to the distance micro-adjuster 47, and the distance between the welding gun 6 and the stiffening ring 2 can be accurately adjusted. The carbon dioxide welding guns located on the two support assemblies 3 are respectively arranged on both sides of the stiffening ring 2 of the pressure steel branch pipe, and the distance between the gun heads of the two welding guns 6 and the welding position of the stiffening ring 2 is the same, so that the double-sided synchronous welding and molding of a single stiffening ring 2 can be achieved, thereby improving the welding efficiency.

[0041] During operation, the rotating power component 1 drives the stiffening ring 2 to rotate, and the supporting column 33 on the working platform 31 moves to the accurate position through the sliding track 32. The tightening part 43 pushes the positioning diagonal support rod 42 to make the positioning wheels 44 on both sides abut against the surfaces on both sides of the stiffening ring 2. The universal joint 45 drives the vertical support rod 46 to be in a vertical state, so that the welding gun 6 gun head can always remain parallel to the axial direction of the stiffening ring 2. The distance micro-adjuster 47 drives the reciprocating swing device 48 to move, so that the reciprocating swing device 48 is close to or away from the stiffening ring 2. The reciprocating swing device 48 adjusts the speed of the multi-layer weld by adjusting the swing frequency and swing amplitude.

[0042] In this application, the term "plurality" means at least two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0043] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A pumped storage power station water diversion steel branch pipe stiffening ring welding device, characterized in that: The invention comprises a rotating power component (1), a supporting assembly (3) is arranged on one side of the rotating power component (1), an angle adjustment component (4) is arranged on the supporting assembly (3), a clamping assembly (5) is arranged at the bottom of the angle adjustment component (4), the angle adjustment component (4) drives the clamping assembly (5) to change the angle, and a welding gun (6) is fixed on the clamping assembly (5).

2. According to claim 1, the device for welding stiffening rings of water diversion steel branch pipes of pumped storage power stations is characterized in that: The support assembly (3) is arranged in plurality on both sides of the stiffening ring (2), the support assembly (3) comprises support columns (33), the stiffening ring (2) is located between the plurality of relative support columns (33), and the support columns (33) are equidistant from the stiffening ring (2).

3. The device for welding stiffening rings of water diversion steel branch pipes of pumped storage power stations according to claim 2 is characterized in that: The support assembly (3) further comprises a working platform (31), a sliding track (32) being fixedly connected to the working platform (31), and a driving end of the sliding track (32) being fixedly connected to the bottom end of the supporting column (33).

4. The device for welding stiffening rings of water diversion steel branch pipes of pumped storage power stations according to claim 1 is characterized in that: The angle adjustment component (4) comprises a positioning diagonal support rod (42) hingedly connected to the support assembly (3), and the clamping assembly (5) is mounted on the positioning diagonal support rod (42).

5. The device for welding stiffening rings of water diversion steel branch pipes of pumped storage power stations according to claim 3 is characterized in that: A positioning wheel (44) is rotatably provided on one side of the positioning diagonal brace rod (42) close to the stiffening ring (2), and the positioning wheel (44) is in relative contact with the side wall of the stiffening ring (2).

6. The device for welding stiffening rings of water diversion steel branch pipes of pumped storage power stations according to claim 3 is characterized in that: A clamping part (43) is provided on the side of the positioning diagonal support rod (42) facing away from the stiffening ring (2); one end of the clamping part (43) is fixedly connected to the support assembly (3); the other end of the clamping part (43) is fixedly connected to the positioning diagonal support rod (42); the clamping part (43) pushes the positioning diagonal support rod (42) toward the side close to the stiffening ring (2) to be clamped.

7. The device for welding stiffening rings of water diversion steel branch pipes of pumped storage power stations according to claim 3 is characterized in that: A vertical support rod (46) is hingedly connected to the positioning diagonal support rod (42), and the vertical support rod (46) is vertically arranged.

8. The device for welding stiffening rings of water diversion steel branch pipes of pumped storage power stations according to claim 6 is characterized in that: A distance fine-adjuster (47) is fixedly arranged on the vertical support rod (46), and the distance fine-adjuster (47) is fixedly connected to the vertical support rod (46). The output end of the distance fine-adjuster (47) is fixedly connected to the clamping assembly (5), and the distance fine-adjuster (47) drives the clamping assembly (5) to move along the axial direction of the stiffening ring (2).

9. The device for welding stiffening rings of water diversion steel branch pipes of pumped storage power stations according to claim 8, characterized in that: The output end of the distance fine-adjuster (47) is fixedly connected to a reciprocating swing device (48), the output end of the reciprocating swing device (48) is fixedly connected to the clamping assembly (5), and the reciprocating swing device (48) drives the clamping assembly (5) to rotate.

10. The device for welding stiffening rings of water diversion steel branch pipes of pumped storage power stations according to claim 8, characterized in that: The swing axis of the reciprocating swing device (48) is parallel to the muzzle axis of the welding gun (6).

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