Ship shaft lever welding repair device

Abstract

The utility model discloses a ship shaft lever welding repair device which comprises a protective gas mechanism, the protective gas mechanism comprises a first protective cover and a second protective cover, a gas cavity is formed between the first protective cover and the second protective cover, the second protective cover is provided with a gas inlet and a gas outlet, the first protective cover is provided with a welding opening, and the welding opening is provided with a gas outlet. A transparent plate is connected to the welding opening, a connecting hole is formed in the transparent plate, and the connecting hole is connected with a welding mechanism; the first moving mechanism is arranged above the first protective cover and is connected with the first protective cover; the second moving mechanism is arranged below the second protective cover, a lifting mechanism is arranged on the second moving mechanism, a supporting component is connected to the lifting mechanism, and the supporting component is connected with the second protective cover; the shaft supporting mechanism comprises a shaft driving motor and bearing assemblies, the shaft driving motor and the bearing assemblies are arranged on the shaft supporting table, the bearing assemblies are arranged at the two ends of the gas mechanism respectively, the two ends of the ship shaft rod are arranged on the bearing assemblies in a penetrating mode, and one end of the ship shaft rod is connected to the shaft driving motor.

Description

TECHNICAL FIELD

[0001] The utility model belongs to ship repair technical field, especially relate to a ship shaft welding repair device. BACKGROUND

[0002] The shaft member of the ship will appear structural damage such as crack in the long-term use process due to various reasons, such as repeated action of alternating stress, accidental impact or internal material defects. These structural damage will seriously affect the normal function of the shaft, if not repaired, the shaft will not continue to reliably transmit power, and even may lead to the whole ship power system paralysis.

[0003] And welding repair can reconnect the crack or fracture site through suitable welding process, restore the overall structure of the shaft, so that it can bear the work task of power transmission again, and protect the normal operation of the ship. At present, the conventional manual arc welding method is used for the repair welding of the ship shaft, compared with manual arc welding, gas shielded welding can make the weld quality higher and the weld forming better. Therefore, the utility model provides the welding device when the ship shaft repair introduces gas shielded welding, so that the ship shaft can realize the introduction of gas shielded welding. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a ship shaft welding repair device to solve the problem of how to repair the ship shaft by welding in the prior art.

[0005] A ship shaft welding repair device, comprising a welding mechanism, the ship shaft welding repair device further comprises:

[0006] A protective gas mechanism, the gas mechanism comprises a first protective cover and a second protective cover, a gas cavity is formed between the first protective cover and the second protective cover, an air inlet hole and an air outlet hole are arranged on the second protective cover, a welding port is arranged on the first protective cover, a transparent plate is connected to the welding port, a connecting hole is arranged on the transparent plate, and the connecting hole is connected to the welding mechanism;

[0007] A first moving mechanism, the first moving mechanism is arranged above the first protective cover and connected to the first protective cover;

[0008] A second moving mechanism, the second moving mechanism is arranged below the second protective cover, a lifting mechanism is arranged on the second moving mechanism, a support part is connected to the lifting mechanism, and the support part is connected to the second protective cover;

[0009] The shaft supporting mechanism comprises a shaft driving motor and a bearing assembly, the shaft driving motor and the bearing assembly are arranged on a shaft supporting table, the bearing assembly is arranged at two ends of the gas mechanism respectively, the two ends of the ship shaft rod are arranged on the bearing assembly, and one end of the ship shaft rod is connected to the shaft driving motor.

[0010] Preferably, the first moving mechanism comprises a trolley and a guide rail, the guide rail is arranged above the first protective cover, the trolley is slidably arranged on the guide rail, a lifting rope is connected to the trolley, and the lifting rope is connected to the first protective cover.

[0011] Preferably, the second moving mechanism comprises a conveying rod, the conveying rod is connected to a fixing plate, a base is connected to the fixing plate, the welding mechanism is connected to the base, and the lifting mechanism is arranged on the conveying rod.

[0012] Preferably, the supporting part comprises a supporting plate and a supporting table, the supporting plate is arranged on the conveying rod, the lifting mechanism is connected to the supporting plate, the supporting table is connected to the lifting mechanism, an arc-shaped cavity is arranged on the supporting table, threaded holes are arranged on end faces of the arc-shaped cavity, and the second protective cover is arranged in the arc-shaped cavity. Preferably, a supporting block is arranged in the second protective cover, air holes are arranged on the supporting block, an arc-shaped supporting cavity is arranged on the supporting block, and the ship shaft rod is arranged on the arc-shaped supporting cavity.

[0013] Preferably, connecting parts are arranged on the first protective cover and the second protective cover, and bolts are connected to the connecting parts.

[0014] Preferably, a lifting lug is connected to the first protective cover, and the first moving mechanism is connected to the lifting lug.

[0015] Preferably, sealing elements are arranged at the ends of the first protective cover and the second protective cover.

[0016] The ship shaft rod welding and repairing device provided by the utility model is provided with two protective covers, moving mechanisms are arranged on the protective covers respectively, the ship shaft rod can be conveniently installed into the protective covers, protective gas is introduced into the protective covers, and the ship shaft rod can be subjected to gas shielded welding. The problem that the ship shaft rod cannot be welded and repaired due to the lack of a corresponding welding device when the ship shaft rod is introduced into gas shielded welding in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0018] Figure 1 is a front view of a ship shaft rod welding repair device provided by the present application;

[0019] Figure 2 is a top view of a ship shaft rod welding repair device provided by the present application;

[0020] Figure 3 is a side view of a ship shaft rod welding repair device provided by the present application;

[0021] Figure 4 is a sectional view of a ship shaft rod welding repair device provided by the present application;

[0022] Figure 5 is a connection schematic diagram inside the first protective cover and the second protective cover provided by the present application;

[0023] Figure 6 is a structural schematic diagram of a supporting part provided by the present application;

[0024] Figure 7 is a structure inside the second protective cover provided by the present application;

[0025] Figure 8 is a use schematic diagram of a welding repair device provided by another embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] In the description of the utility model, it is necessary to explain that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0028] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number. If the terms "first", "second", "third" are described, they are only for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0029] In the description of the utility model, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The embodiments of the utility model will be described below according to the overall structure of the utility model.

[0030] The ship shaft rod welding repair device comprises a welding mechanism, a protective gas mechanism, a first moving mechanism, a second moving mechanism and a shaft support mechanism.

[0031] Referring to Figures 1-5 The gas mechanism comprises a first protective cover 1 and a second protective cover 2, a gas cavity 3 is formed between the first protective cover 1 and the second protective cover 2, the second protective cover 2 is provided with an air inlet hole 100 and an air outlet hole 200, the first protective cover 1 is provided with a welding port 300, the welding port 300 is connected with a transparent plate 4, the transparent plate 4 is provided with a connecting hole 40, and the connecting hole 40 is connected with the welding mechanism.

[0032] Referring to Figure 1 And Figure 4When welding, the ship shaft 400 is inserted into the air cavity 3, the air inlet hole 100 is used to introduce protective gas into the air cavity 3, and the air outlet hole 200 is used to exhaust waste gas in the air cavity 3.

[0033] The first moving mechanism is arranged above the first protective cover 1 and connected with the first protective cover 1; the second moving mechanism is arranged below the second protective cover 2, and a lifting mechanism 9 is arranged on the second moving mechanism, a supporting part 10 is connected with the lifting mechanism 9, and the supporting part 10 is connected with the second protective cover 2. The first moving mechanism is used to move the first protective cover 1, and the second moving mechanism is used to move the second protective cover 2, so as to install the ship shaft into the air cavity 3 formed by the first protective cover 1 and the second protective cover 2.

[0034] Referring to Figure 1 , the shaft supporting mechanism includes a shaft driving motor 5 and a bearing assembly 6, the shaft driving motor 5 and the bearing assembly 6 are arranged on a shaft supporting table 7, the bearing assembly 6 is arranged at two ends of the gas mechanism respectively, the two ends of the ship shaft 400 are inserted into the bearing assembly 6, and one end of the ship shaft 400 is connected with the shaft driving motor 5. The shaft driving motor 5 can drive the welded repaired ship shaft 400 to rotate.

[0035] Referring to Figures 1-2 , the ship shaft welding repair device provided by the above embodiment has the following advantages when welding and repairing the ship shaft:

[0036] First, the sealing part 8 is sleeved on the ship shaft 400 to be welded and repaired, the ship shaft 400 sleeved with the sealing part 8 is installed on the bearing assembly 6, and the ship shaft 400 is connected with the shaft driving motor 5. Then, the second protective cover 2 is installed on the supporting part 10, the lifting mechanism 9 lowers the supporting part 10, then the second moving mechanism moves the second protective cover 2 (moves in the direction of the arrow A in Figure 2 ) to the position close to the welding mechanism, so that the ship shaft 400 to be welded and repaired is located directly above the second protective cover 2, then the lifting mechanism 9 raises the supporting part 10 to make the second protective cover 2 contact with the ship shaft 400 to be welded and repaired, that is, the ship shaft 400 to be welded and repaired is installed on the second protective cover 2.

[0037] Then, the first moving mechanism moves the first protective cover 1 (moves in the direction of the arrow A in Figure 2 ) to the second protective cover 2, so that the first protective cover 1 closely contacts with the second protective cover 2, the first protective cover 1 and the second protective cover 2 are connected, and the first protective cover 1 and the second protective cover 2 cover the ship shaft 400 to be welded and repaired.

[0038] The sealing member 8 is connected to the first protective cover 1 and the second protective cover 2. The welding gun in the welding mechanism is connected to the connecting hole 40 of the transparent plate 4 arranged on the first protective cover 1, and finally the protective gas is introduced into the air cavity 3 through the air inlet hole 100, and when the air in the air cavity 3 is exhausted, the welding mechanism starts to weld the ship shaft 400 to be welded and repaired in the first protective cover 1 and the second protective cover 2. During welding, the welding waste gas in the air cavity 3 is discharged through the air outlet hole 200, the shaft driving motor 5 rotates the ship shaft to be welded and repaired, and the position to be welded on the ship shaft to be welded and repaired 400 is rotated to the welding port 300 position where the transparent plate 4 is located, and the welding mechanism is welded.

[0039] Wherein, the welding mechanism and the sealing member 8 both belong to the prior art, and no further elaboration is made here, but it should be understood that the welding structure as the prior art can perform gas shielded welding on the ship shaft in the protective cover, and the sealing member 8 can seal the end of the protective cover, so that the ship shaft can seal the end of the protective cover under rotation after being arranged in the protective cover, and the protective gas is prevented from leaking.

[0040] The ship shaft welding and repairing device provided by the utility model sets two protective covers and sets moving mechanisms for the protective covers respectively, so that the ship shaft can be conveniently installed in the protective covers, protective gas is introduced into the protective covers, and gas shielded welding of the ship shaft is realized. The problem that the ship shaft cannot be welded and repaired due to the lack of corresponding welding devices when the gas shielded welding is introduced in the prior art is solved.

[0041] It should be noted that the above welding and repairing device is suitable for relatively large-volume ship shafts, and the length of such ship shafts is usually 5 meters or more. For some small ship shafts, the volume of the protective cover can be reduced when the gas shielded welding is introduced, and the corresponding shaft driving motor 5, bearing assembly 6 and sealing member 8 are configured. At this time, since the protective cover and the ship shaft are relatively small, whether the moving mechanism is used to assist the installation of the protective cover can be determined according to the actual maintenance situation. After the welding and repairing of the ship shaft is completed, the welded and repaired ship shaft 400 is taken out from the first protective cover 1 and the second protective cover 2, the introduction of the protective gas is stopped, the welding mechanism is removed from the welding port 300, the sealing member 8 is removed from the first protective cover 1 and the second protective cover 2, the sealing member 8 is sleeved on the ship shaft 400, the bolts between the first protective cover 1 and the second protective cover 2 are removed, and then the first moving mechanism moves the first protective cover 1 (moves in the direction of the B arrow in FIG. 8). Figure 2

[0042] ​After the first protective cover 1 and the second protective cover 2 are separated, the driving lifting mechanism 9 lowers the supporting component 10, the second protective cover 2 is separated from the ship shaft, then the second moving mechanism moves the second protective cover 2 (moves in the direction of the B arrow in the figure), and then the ship shaft can be taken out from the shaft supporting mechanism. Figure 2

[0043] Referring to Figure 1 , the first moving mechanism comprises a travelling crane 11 and a guide rail 12, the guide rail 12 is installed above the first protective cover 1, the travelling crane 11 is slidably installed on the guide rail 12, a lifting rope 13 is connected to the travelling crane 11, and the lifting rope 13 is connected to the first protective cover 1.

[0044] The travelling crane 11 can slide on the guide rail 12, and the first protective cover 1 can move in the direction of the A arrow or the B arrow in the figure.

[0045] Referring to Figures 1-3 , the second moving mechanism comprises a transport rod 14, the transport rod 14 is connected to a fixed plate 15, the fixed plate 15 is connected to a base 16, a welding mechanism is connected to the base 16, and the lifting mechanism 9 is arranged on the transport rod 14.

[0046] Referring to Figures 1-6 , the supporting component 10 comprises a supporting plate 17 and a supporting table 18, the supporting plate 17 is arranged on the transport rod 14, the lifting mechanism 9 is connected to the supporting plate 17, the supporting table 18 is connected to the lifting mechanism 9, an arc-shaped cavity 180 is arranged on the supporting table 18, and the second protective cover 2 is arranged in the arc-shaped cavity 180.

[0047] The lifting mechanism 9 can be various, for example, the lifting cylinder is adopted in the utility model, and the lifting of the supporting table 18 is realized.

[0048] A plurality of transport rods 14 are arranged, the plurality of transport rods 14 can rotate on the fixed plate 15, and when the plurality of transport rods 14 rotate, the supporting plate 17 can move on the transport rod 14, and then the supporting plate 17 can move in the direction of the A arrow or the B arrow in the figure, so that the second protective cover 2 is conveniently installed. Figure 2

[0049] Referring to Figure 4 , Figure 5 and Figure 7 ​​The inside of the second protective cover 2 is provided with a supporting block 19, the supporting block 19 is provided with a ventilation hole 190, the supporting block 19 is provided with an arc-shaped supporting cavity 191, and the ship shaft is installed on the arc-shaped supporting cavity 191. The supporting block 19 is arranged at the middle position of the second protective cover 2, and the supporting block 19 can support the ship shaft inside the second protective cover 2. The ventilation hole 190 can pass the gas from the supporting block 19, and when the ship shaft is arranged inside the first protective cover 1 and the second protective cover 2, the ship shaft does not contact the inner wall of the first protective cover 1 and the second protective cover 2. The supporting block 19 can support the ship shaft on one hand, and on the other hand, referring to Figure 8 For some shorter ship shafts 400, the positions of the shaft driving motor 5 and the bearing assembly 6 on the side of the shaft driving motor 5 are adjusted, then one end of the ship shaft 400 is arranged on the supporting block 19, and the other end of the ship shaft 400 is connected with the shaft driving motor 5, so that the welding repair work of the shaft is realized, and the whole welding repair device is suitable for the on-site maintenance work.

[0050] Referring to Figure 5 The first protective cover 1 and the second protective cover 2 are both formed with a connecting portion 20, and the connecting portion 20 is connected with a bolt. When the first protective cover 1 and the second protective cover 2 are contacted through the moving mechanism and the lifting mechanism, the first protective cover 1 and the second protective cover 2 can be connected and fixed through the bolt, and meanwhile, the first protective cover 1 and the second protective cover 2 are convenient to disassemble, so that the installation of the ship shaft is more convenient.

[0051] Referring to Figure 1 And Figure 5 The first protective cover 1 is connected with a lifting lug 21, and the first moving mechanism is connected with the lifting lug 21. The lifting rope 13 in the first moving mechanism is connected with the lifting lug 21, so that the first moving mechanism is connected with the first protective cover 1.

[0052] In conclusion, the ship shaft welding repair device provided by the utility model can conveniently install the ship shaft into the protective cover by arranging two protective covers and arranging the moving mechanism on the protective cover, and the protective gas is introduced into the protective cover, so that the ship shaft can be gas shielded welding. The problem that the ship shaft cannot be welded and repaired in the prior art because of the lack of corresponding welding device when the gas shielded welding is introduced is solved.

[0053] The foregoing description of the specific exemplary embodiments of the present application is for the purpose of illustrating and describing, rather than limiting the application, and it will be apparent to those of ordinary skill in the art that many changes and modifications can be made to the embodiments with the foregoing teaching, notwithstanding what can be suggested above and although only a few of the exemplary embodiments of the present application have been described. Although the embodiments of the present application have been described, the specific embodiments are merely illustrative of the present application and are not intended to limit the present application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and the exemplary embodiments are selected and described for the purpose of explaining the specific principles of the present application and its practical application, so that those skilled in the art can make modifications, replacements, variations and various different selections and changes to the embodiments without creative contribution after reading the specification, as long as they are within the scope of the claims of the present application.

Claims

1. A marine shaft stem welding repair apparatus comprising a welding mechanism, characterised in that, The ship shaft welding repair device further comprises: A protective gas mechanism, which comprises a first protective cover and a second protective cover, a gas cavity being formed between the first protective cover and the second protective cover, an air inlet hole and an air outlet hole being arranged on the second protective cover, a welding port being arranged on the first protective cover, a transparent plate being connected to the welding port, a connecting hole being arranged on the transparent plate, and the connecting hole being connected to the welding mechanism; A first moving mechanism, which is arranged above the first protective cover and connected to the first protective cover; A second moving mechanism, which is arranged below the second protective cover, a lifting mechanism being arranged on the second moving mechanism, a support component being connected to the lifting mechanism, and the support component being connected to the second protective cover; A shaft support mechanism, which comprises a shaft driving motor and a bearing assembly, the shaft driving motor and the bearing assembly being arranged on a shaft support table, the bearing assembly being arranged at two ends of the gas mechanism respectively, the two ends of the ship shaft being arranged on the bearing assembly, and one end of the ship shaft being connected to the shaft driving motor.

2. A vessel shaft stem welding repair apparatus as claimed in claim 1, wherein, The first moving mechanism comprises a travelling crane and a guide rail, the guide rail being mounted above the first protective cover, the travelling crane being slidably mounted on the guide rail, a lifting rope being connected to the travelling crane, and the lifting rope being connected to the first protective cover.

3. A marine shaft repair welding apparatus as claimed in claim 1, wherein, The second moving mechanism comprises a transport rod, the transport rod being connected to a fixed plate, a base being connected to the fixed plate, the welding mechanism being connected to the base, and the lifting mechanism being arranged on the transport rod.

4. A vessel shaft stem welding repair apparatus as claimed in claim 3, wherein, The support component comprises a support plate and a support table, the support plate being arranged on the transport rod, the lifting mechanism being connected to the support plate, the support table being connected to the lifting mechanism, an arc-shaped cavity being arranged on the support table, threaded holes being arranged on end faces of the arc-shaped cavity, and the second protective cover being arranged in the arc-shaped cavity.

5. A marine shaft repair welding apparatus as defined in claim 1 wherein, An inner portion of the second protective cover is provided with a support block, the support block being provided with air holes, and the support block being provided with an arc-shaped support cavity, the ship shaft being arranged on the arc-shaped support cavity.

6. A marine shaft repair welding apparatus as defined in claim 1, wherein, The first protective cover and the second protective cover are both provided with connecting portions, and bolts are connected to the connecting portions.

7. A marine shaft repair welding apparatus as defined in claim 1 wherein, The first protective cover is connected to a lifting lug, and the first moving mechanism is connected to the lifting lug.

8. A marine shaft repair welding apparatus as defined in claim 1 wherein, End portions of the first protective cover and the second protective cover are connected to sealing members.

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